Technews August 2011 Volume 4

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  • 1. August 2011 | Volume 4 | Issue 2 | High Voltage AC | Air/Fuel Ratio Sensors | P030x Codes | Body Basics | Collision Service | Dealer ListingBrought to you by your local Wholesale Mechanical and Collision Repair Network Dealers
  • 2. Nissan & Infiniti Tech News | August 2011 | Volume 4 Issue 2 ®Nissan & Infiniti Tech News is a publication ofNissan North America. No part of this newslet-ter may be reproduced without the express writ-ten permission of Nissan North America. | ContentsGroup PublisherChristopher M. Ayers Jr.cayers@automotivedatamedia.com FeaturesEditorial DirectorBob Freudenberger 04 | High-Voltage ACbfreud@automotivedatamedia.com Let’s explore the technical workings of theManaging Editor electrically-driven air conditioning systemsTom Nash found on Nissan Hybrids and the all-elec-tnash@automotivedatamedia.com tric LEAF.Contributing EditorsBob Chabotbchabot@automotivedatamedia.comPaul Cortes 10 | Air/Fuel Ratio Sensorspcortes@automotivedatamedia.com Here’s a practical look at the Air/FuelPhil Fournier ratio sensor, how its different from an O2ffournier@automotivedatamedia.com sensor, techniques for diagnosis andChristian Strohm replacement tips.cstrohm@automotivedatamedia.comArt DirectorJef Sturmjsturm@automotivedatamedia.com 16 | Diagnosing P030x Codes When a misfire is imperceptible, you may needNissan North AmericaProject Manager to use the ECM as your “eyes” and “ears”.Don Meier Learning to use freeze frame data and pendingdon.meier@nissan-usa.com codes will speed diagnosis and reduce come-Nissan North America backs.Technical Content AdvisorsEdwin J. Hibma 22 | Body Basicsed.hibma@nissan-usa.comJames Von Ehr Equipment and Toolsjames.vonehr@nissan-usa.com In this first of a series of body service articles, we will cover collision equipment and tools toEditorial and properly repair damage to Nissan andCirculation Offices:134B River Road Infiniti vehicles.Montague, NJ 07827Phone: 330.620.3929Website: www.mastertechmag.com 26 | Collision Service onCaution: Vehicle servicing performed by untrained persons Nissan High Voltagecould result in serious injury to those persons or others.Information contained in this publication is intended for use by Vehiclestrained, professional auto repair technicians ONLY. This infor- “Do no harm” to life or car when repairingmation is provided to inform these technicians of conditions Nissan LEAF or Altima Hybrid vehicles.which may occur in some vehicles or to provide informationwhich could assist them in proper servicing of these vehicles.Properly trained technicians have the equipment, tools, safe-ty instructions, and know-how to perform repairs correctly Departmentand safely. If a condition is described, DO NOT assume thata topic covered in these pages automatically applies to your | 27 Nissan & Infiniti Dealer Listingsvehicle or that your vehicle has that condition. Nissan & Infiniti Tech News | 3
  • 3. Nissan & Infiniti Tech News Feature | High Voltage Air Conditioning Let’s explore the technical workings of the electrically- driven air conditioning systems found on Nissan Hybrids and the all-electric LEAF, system diagnosis, and why leak detection using dye must be avoided to prevent costly additional repairs.4 | Nissan & Infiniti Tech News
  • 4. ® It isn’t news that hybrid and electric vehicles are onthe road to stay. Nissan has released plans to developthe luxury Infiniti M35 Hybrid, and has started manufac-turing the all-electric LEAF. What were once familiar airconditioning repairs have evolved with the hybrid elec-tric or all-electric drivetrain, and a system you mightthink is unrelated to hybrid components is actually inex-tricably woven together with them. Instead of merelybeing unsuccessful at the repair, you now risk extremelyexpensive collateral damage. Do it right the first time,and read up on the factory service procedures!First things First: Precautions Before you begin work on the electrical A/Csystems of any Nissan hybrid, consult the servicemanual. Take note of two important warnings:1. DISCONNECT THE HV SERVICE PLUG. GRIP USING LINEMAN’S GLOVES AND DO NOT TOUCH THE HV CONNECTORS OR TERMINALS Locate and remove the high-voltage service plug to disconnect the battery from the electric FOR 10 MINUTES AFTER THE PLUG IS REMOVED WHEN WORKING compressor. This plug is on the LEAF. WITH THE ELECTRIC COMPRESSOR UNIT. the service manual, electrical A/C work can be prof-2. DO NOT USE A/C EQUIPMENT THAT HAS NOT BEEN DEDICATED TO itable and rewarding. ELECTRIC COMPRESSORS USING ONLY ND-OIL 11, OR HAS NOT Let’s take a quick look at everything that functions BEEN PROPERLY PREPARED FOR USE WITH ELECTRICAL A/C identically between normal and electric A/C systems: 1. Refrigerant is the same (HFC-R134a). (DISCUSSED BELOW). 2. The HI and LO side pressures are similar. Failure to disconnect the service plug risks your Consult the repair manual chart.life and the lives of others who may be unaware of 3. Condenser is the same.the repair you’re performing. Remember to carry the 4. Receiver/Drier is the sameservice plug with you until the repair is completed to (Nissan calls it the Liquid Tank).prevent another worker from accidentally restoring 5. Evaporator is the same.high voltage to the system. 6. Thermal Expansion valve is the same. We will discuss the second precaution in more Let’s make a short list of what’s different:detail later, but for now, know that the electric 1. The A/C oil is different. The electrical systemscompressor uses an insulating oil to prevent high use ND-OIL 11, which is a non-conductive oilvoltage leaks within the system. If you contaminate that CANNOT be interchanged with standardthis oil by using standard PAG oil and dye, it can not PAG.only damage the compressor, but it could possibly 2. The electric compressor is driven by an electricinfiltrate the entirety of the electrical A/C system and motor, rather than a drive belt.require total component replacement! Not cheap! 3. Multiple computers control the electric compressor and other A/C systems.System differences and similarities Nissan also uses a refrigerant pressure sensor, which reports the high pressure liquid refrigerant pressure to Don’t be too intimidated by the electric compressor the ECU. Some modern belt-driven A/C systems mayA/C system, because it is not at all conceptually dif- also employ this sensor separately from the HI/LOferent from your typical belt-driven air conditioning. If pressure cut off switch or relief valve. It is located onyou follow the aforementioned precautions, and read the liquid tank. Nissan & Infiniti Tech News | 5
  • 5. Nissan & Infiniti High Voltage Air ConditioningThe heart of the electric A/C system: Additionally, in an electrical air conditioning system,the compressor the A/C control unit (Auto Amp) has the ability to con- stantly request a change in the RPM of the electric The electric compressor deserves its own section. compressor for maximum efficiency. As a result, theFirst, we will discuss why hybrid systems utilize this electric compressor will not be cycling FULL ON ordesign; then, we will outline the detailed workings of OFF as a typical belt-driven compressor with a clutchthe device and its benefits. would. Instead, the RPM range will vary between 0 and The internal combustion engine of a hybrid vehicle 12,000, based on calculated need. This may changeshuts down intermittently when not required. Therefore, system pressures, but it allows the Auto Amp to morethere is no guaranteed source of power from a crank effectively match the driver’s requested temperature aspulley to drive a standard compressor. If the internal efficiently as possible.combustion engine shuts down to conserve powerunder light load or while sitting in traffic, a standard The three-phase power aspect of thecompressor would not spin. Therefore, the engineers atNissan have bypassed the need to keep the engine electric compressoridling for A/C by introducing the electric compressor. Because an electric compressor can be controlledDue to the large demand for power from the A/C sys- with more accuracy, and does not require a spinningtem, the electric compressor is directly linked to high crank pulley, it is inherently more efficient. It can per-voltage via the inverter. form the same duty as a standard compressor with Running the electric A/C compressor requires a more consistency, and is therefore ideal for a highlarge amount of power. If the battery becomes drained, miles-per-gallon hybrid. However, this new systemthe HV ECU may request that the internal combustion requires re-education about its design and control.engine restart and begin charging. This causes a Let’s investigate the electrical compressor’s physicalreduction in mileage and fuel economy. Yet, it is no design.different from the increased load from a standard When inspecting the electric compressor, you willcompressor. immediately see three high voltage lines attached.The electric compressor for a 2009 Altima On the right, the three-wire connector attachesHybrid. Take note of the on-board inverter inverter to the electric compressor. Systemand control module. The insulating resin has shown is the LEAF.leaked a bit from this unit, not a problem.6 | Nissan & Infiniti Tech News
  • 6. Three-phase power is provided from the hybrid inverter.Unlike standard 12V systems, power does not flowthrough chassis ground. Instead, the power flows fromphase to phase, constantly changing as necessary.The compressor is also connected to the HV ECU inorder to report its RPM, and to receive the commandfor the Auto Amp’s desired RPM. Like the hybrid This special oil maymotor/generator, the A/C compressor consecutively take some time toenergizes three sets of windings to create sequential receive, so be sure toelectromagnetic fields. In the electric compressor, a have some on hand sopermanent magnet attached to the compressor input you don’t cause a delayshaft will “chase” the ever-moving electric fields gener- for your customer.ated from the energized windings. The chase causesthe compressor to spin. In a three-phase motor of this kind, if a short-to- If you suspect the P0AA6 DTC is from contaminationground occurs, high voltage would be detected by the due to dye, moisture, or conductive oil, Nissan says toECU. This highlights the importance of ND-OIL 11: replace all of the main components – evaporator,insulation. Since this special oil is non-conductive, it condenser and compressor – then flush the lines.prevents the windings from shorting to the metal hous- Obviously, total component replacement is not aing of the compressor, which is grounded to the chas- cost-effective or realistic method for A/C repair.sis. Using the wrong kind of oil or dye will create apotential for voltage to go to ground, creating a serioussafety hazard. If someone were to come in contact withanother high-voltage line, he could be electrocuted. Furthermore, there is a possibility for a phase-to-phase short to occur when the insulation is compro-mised. For this reason, it is not recommended to ignore Don’t use standardor otherwise avoid any high voltage leak detected fault compressor oil,even though it’s “just the A/C.” A shorted winding could despite what theresult in high temperatures and possibly smoke from bottle may advertise.under the hood! You can cause a huge headache!High-voltage leak detected A breakdown in insulation will result in DTC P0AA6 It is required that you prepare your A/C equipmentwith info code 611. You may be unable to command the for electrical A/C work first to avoid contamination ofA/C compressor to engage. If it operates, A/C perform- the ND-OIL 11. The easiest method is to obtain dedi-ance may be degraded. If you put the wrong type of oil cated equipment for electric A/C work; however, this isin, cycling the compressor will increase the exposure of not always practical. It is possible to flush some A/Cthe rest of the system, which may result in more expen- machines with R134a, eliminating all traces of tradi-sive additional repairs. Nissan states that even if a small tional oil. Other machines have oil strippers that canamount of oil is used or accidentally enters the refriger- remove oil before it enters the car’s A/C system. Theant recharge cycle, the DTC can be set. Confirmation of A/C machine should be SAE J2788 standard-compli-a high voltage leak can be performed with a "megger" ant, or it should not be used for electrical air condition-(megaohmmeter). Check resistance between any one ing repair. Once your machine is ready, DO NOT addof the high voltage cables on the compressor and UV dye to aid in leak detection. The dye is conductive,ground; Nissan’s specification is at least two million and it only takes a small amount to negate the insulat-ohms (2 MOhm). Less than that indicates an internal ing properties of ND-OIL 11. At this time, there are noshort that would cause high voltage leakage. Nissan-approved dyes. Nissan & Infiniti Tech News | 7
  • 7. Nissan & Infiniti High Voltage Air Conditioning Understanding the relationship the Auto Amp has with the other computers, the under-dash A/C unit, and the various A/C-related sensors is crucial. The Auto Amp communicates with multiple ECUs to control the various electronic A/C components as nec- essary, based on information it receives from the inlet temperature sensor, ambient temperature sensor, in- vehicle cabin temperature sensor, the sun load sensor, as well as engine coolant temperature, vehicle speed, and refrigerant pressure information from the main ECU. Using the A/C LAN system, the Auto Amp will automatically control the vent door and blower motors that reside within the A/C plenum beneath the dash. The ICE ECU shares useful information about vehicle speed and engine coolant temperature with the Auto Amp that then can prohibit compressor operation in the event of vehicle overheating, or stop the condenser fan from cycling above a certain vehicle speed. The com- pressor RPM is controlled by the HV ECU once the Auto Amp has calculated and requested the idealThe Altima hybrid’s electric compressor has a speed from sensor input.sticker indicating the required refrigerant R134a The under-dash A/C unit contains blend and ventand special oil, ND-OIL 11. door motors, a communications bridge to the Auto Amp, the evaporator and heater core, blower motor, and the evaporator inlet temperature sensor. The Auto AmpUnderstanding electrical controls this unit via the CAN bus, so any failure alongA/C controllers the CAN may result in A/C malfunction. The Auto Amp controls driver/passenger comfort zones by manipulat- The automatic air conditioning is primarily controlled ing the vent and blend door motors within the under-by a dedicated computer that Nissan calls the Auto dash A/C unit. It is important to remember for diagnosisAmp. The customer provides direct commands to the that all electrical controls and motors must be checkedAuto Amp unit by manipulating the dash controls. before assuming there is a refrigerant charge issue. The electric compressor uses PWM (Pulse Width Modulation) within the inverter toNissan provides a system diagram to explain control the three-phase motor based on inputthe flow of information among all the commands from the Auto Amp via the HV ECU.components. Altima Hybrid shown. Nissan LEAF shown.8 | Nissan & Infiniti Tech News
  • 8. Operation MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6 MODE 7Mode door position VENT B/L1 BL2 FOOT D/F DEF —Intake door position FRE 20% FRE 20% FRE FRE FRE FRE —Air mix door(driver side) pos. FULL COOL FULL COOL FULL HOT FULL HOT FULL HOT FULL HOT —Air mix door(passenger side) pos. FULL COOL FULL COOL FULL HOT FULL HOT FULL HOT FULL HOT —Blower motor duty ratio 47% 59% 59% 87% 87% 59% OFFCompressor 2,000 rpm 4,500 rpm OFF OFF OFF 4,500 rpm OFFHeater pump OFF OFF ON ON ON ON ONEngine ON request OFF OFF OFF OFF ON OFF OFFChecks must be made visually, by listening to the sound, or by touching air outlets with hand, etc. for improper operation.Using the CONSULT, choose from one of seven self-tests to verify compressor speeds, blend and ventpositions, and blower motor operation. dated. Just think about the CONSULT as your first tool available to gather information about the behavior of theElectrical A/C diagnosis controls and the various sensors necessary for normal A/C operation. Reference the System Diagram in the When working on modern hybrids, your first diagnos- service manual to understand the interaction among alltic tool should be the CONSULT. The electrical A/C the players in this different A/C game.system will have DTC information stored about any You can also utilize the bi-directional controls withindetected faults. The information gained from a DTC call the CONSULT’s active test section to aid in diagnosis.will be invaluable for properly repairing the air condi- Access the work-support section within CONSULT, thentioning. Furthermore, the CONSULT provides a self- select the system you wish to command. For example, ifcheck for air conditioning that will test various com- a DTC is set about target compressor RPM not beingpressor speeds and vent/blend door positions. The met, you can determine at what load this occurs by com-CONSULT can also evaluate CAN-related errors, and manding the compressor to incrementally increase RPM.illustrate a break in communication between two nodes. The CONSULT will also provide multiple PIDsWhy waste time and energy charging and recharging (Parameter Identifiers) within the live data for all thethe A/C system when the problem is not the refriger- A/C controls. From this section, you can monitor theant, but the electrical control of some component? sensor outputs and identify, at a glance, anything that The majority of the physical components within an seems out of specification. The repair manual detailselectrical A/C system are identical to standard air con- the PIDs available, including the units and “plainditioning: high-pressure hoses connect the compressor English” descriptions.to the condenser to the expansion valve and the evapo- Some PIDs like HEATER NUP or NE HEATER mightrator. Use some common-sense checks: If the low-pres- shed some light on strange A/C problems. HEATERsure hose is cold to the touch, the A/C is operational. NUP indicates a command has been made from the HVCheck the high- and low-side pressures with gauges at ECU to the CAN bus for the internal combustion enginethe service ports; this information is still relevant to elec- to turn on. NE HEATER is the requested RPM of thetrical A/C diagnosis. Use the pressure charts available engine necessary to provide the desired heater temper-in the repair manual to assist in diagnosis. ature, as interpreted and calculated by the Auto Amp. Use the CONSULT to gather DTC information directly Maybe the customer complains that the engine isfrom the A/C control units. Many A/C control malfunc- working hard with the heater on, but that’s because thetions will store fault information, and the repair manual NE HEATER PID shows that the A/C is requesting anwill include diagnostic trees to figure out the problems. unusually high engine RPM. The problem lies with theElectrically-powered A/C systems require a slightly dif- A/C system, not the engine!ferent approach than normal A/C, but don’t be intimi- Nissan & Infiniti Tech News | 9
  • 9. Nissan & Infiniti High Voltage Air ConditioningO-Ring Specifications* Connection type O-Ring size D mm (in) W mm (in) New 8 6.8 (0.268) 1.85 (0.0728) Former 10 9.25 (0.3642) 1.78 (0.0701) D New 10.9 (0.429) 2.43 (0.0957) 12 Former 11.0 (0.433) 2.4 (0.094) New 13.6 (0.535) 2.43 (0.0957) 16 Former 14.3 (0.563) 2.3 (0.091) New 16.5 (0.650) 2.43 (0.0957) W 19 Former 17.12 (0.6740) 1.78 (0.0701) New 24 21.8 (0.858) 2.4 (0.094) Always check with the Parts Department for the latest parts information. Refer to the chart to determine what the replacement O-ring should be used for your new component. compressor, hose fittings, relief valve, service ports, condenser, and liquid tank. Do not stop to repair a sin- gle leak if detected! Continue checking the entire sys- tem making notes about potential leaks. Use com- pressed air to clear the areas and revisit the previously noted leaks to verify there is active seepage. To check for leaks at the evaporator, turn the ignition ON, but not READY. Run the blower motor for at least 15 seconds to clear out any trace refrigerant. Wait about 10 minutes for enough refrigerant to accumulate, then insert the nose of the sniffer into the A/C unit drain tube to check for leaks. The last step is to ready the vehicle. Run the A/C on MAX COLD with the vents set to RECIRC for at least two minutes. Shut off the A/C and check for leaks as outlined above immediately. Start at the high-pressure side of the compressor. The pressure will steadily decline when the system is shut off. Because O-rings are common leak points, Nissan Electronic refrigerant detectors like this has issued a chart to aid in proper O-ring replacement. unit must be used in place of UV dye when Any new component will utilize a new O-ring, so do not searching for leaks. attempt to compare the O-ring removed from the old component, even if you have a stash of various sizes of Proper follow-up checking A/C O-rings. If the wrong O-ring is installed, refrigerant without using dye will leak at or around the connection. Nissan will always strive to create the most efficient After component replacement is completed, doing systems for it’s cars. The hybrid and electric vehicles follow-up leak detection may be difficult without dye. have the benefit of a direct, high-voltage source that However, Nissan recommends using an electronic can power an electric compressor. The future of auto refrigerant leak detector, or sniffer. Prior to leak detec- repair will not be in basic removal and replacement, but tion, Nissan notes that the A/C static pressure should rather in the knowledge of interconnectivity among be at least 50 psi of pressure above 16 degrees advanced systems and their electronic controls. Celsius. Consult the appropriate chart in the repair Keeping up with the technology takes training and manual. Clean the areas to be checked, and begin with awareness, but it will continue to be necessary for the high-pressure side. Move the sniffer around the working with all future automobiles. |10 | Nissan & Infiniti Tech News
  • 10. Nissan & Infiniti Tech News | 11
  • 11. Nissan & Infiniti Tech News Feature | Fast Air/Fuel Ratio Sensor Diagnosis Efficient troubleshooting of one of the most common causes of an illuminated MIL, plus how its different from an O2 sensor, and replacement tips.A quick review of the basics cars, so most technicians are familiar with the basics. However, until recently oxygen (O2) sensors were most The proper air/fuel ratio is one of the key aspects of often used to provide feedback. This article will cover engine performance, and is very important for reduc- differences, diagnosis, and service of the type of ing emissions. The ECM uses sensor input exhaust sensor used on almost all new Nissan prod- to determine how ucts, the Air/Fuel (A/F) ratio sensor. What makes A/F ratio sensors special O2 sensors work well if the strategy is to provide the stoichiometric 14.7:1 air/fuel ratio while in closed loop. An O2 sensor will output less than 450mV when the mixture is 14.8:1 ormuch air is higher, or more than 450mVentering the when the mixture is 14.6:1engine, then applies or lower. But what if youlogic, known as a base were a Nissan engineerfuel map, to determine the and you wanted to runinjector on-time, thus the 15.5:1 to save fuel underamount of fuel added to the engine. certain driving conditions, orThis base calculation usually comes pretty close to temporarily enrich the mixtureideal in modern cars, but pretty close is no longer good to reduce NOx emissions? Theenough to deliver the fuel economy and low emissions O2 sensor is like a switch: it will read higher than lamb-expected and required in today’s vehicles. Also, there da or lower than lambda, on or off, black or white, butare a number of variables such as manufacturing vari- no shades of gray. This is not good enough for the fuelances, engine wear, unmetered air leaks, injector condi- control strategies used in modern cars.tion, and fuel blends that will affect the accuracy of the The air fuel (A/F) sensor solves this dilemma. It meas-base calculation. ures the air/fuel ratio instead of providing rich/lean out- A feedback system is employed to determine how put. Some A/F sensors are capable of accuratelyclose the base calculation came to providing the ideal reporting mixtures between 10:1 and 30:1, allowing theair/fuel ratio, and allows the ECM to modify the ratio engineers a lot more freedom in fuel mapping.based on exhaust gas measurements. The feedback The inner workings and construction of A/F sensorscycle starts when the ECM injects a pre-mapped are an interesting study if the goal is a better under-amount of fuel based on sensor input. The exhaust standing of how things work. However, since we willsensor reports back, the ECM adjusts, the exhaust not be required to design or rebuild an A/F sensorsensor reports, the ECM adjusts, and the cycle contin- during the course of our daily responsibilities, and anues for as long as the engine is running in closed loop. understanding of its fundamental workings is irrelevantAdjustments to the fuel map are known as fuel trim. to diagnosis and repair, our time is better spent seek- Feedback systems have been used on Nissan prod- ing to understand what observable characteristicsucts since the late 1970s, even on some carbureted separate a “good” A/F sensor from a “bad” A/F sensor.12 | Nissan & Infiniti Tech News Nissan & InfinitiTech News
  • 12. ®Diagnosis of AF sensor failure just a few minutes. When trying to duplicate a trouble code, it’s best to use the CONSULT to monitor live The most common A/F failure is the heater. Why? data, as this will enable a check-mode that willEver heard the expression "the candle that burns twice decrease the time it takes to set a code.as bright burns half as long?" Well, the A/F sensor If a heater code resets, check the circuit. A completeheater is one seriously bright burning candle! An O2 heater circuit check is quick and easy. You’ll need asensor heating element runs at about 600 deg. F., wiring diagram to decode the wire colors on the har-which is pretty hot. But that’s nothing compared to an ness side, but the wires on the AF sensor side areA/F sensor. Its heating element runs at almost 1,500 often universal. Usually, the two heater wires are thedeg. F., hot enough to melt aluminum and make steel same color, most often black. Which is power andglow bright red and bend like a noodle. Combine this which is ground/control can be easily deduced oncevery-high operating temperature with corrosive gasses you take measurements, as follows:and incessant vibration and it’s actually pretty amazingthey last as long as they do. Without a functional heater, the A/F sensor cannotwork properly. Therefore, if you find a heater code anda performance code, always diagnose the heater codefirst. Many vehicles will not run the A/F performancetests if the heater test fails, but sometimes the resultsfrom a previous performance test will remain in memo-ry, so it is possible to have both heater and perform-ance codes stored. Fused power is supplied to the A/F sensor heaterwhenever the key is in the ON position, and a groundpulse is supplied by the ECM based on MAF and RPMinputs. If engine load and calculated exhaust tempera-ture are high enough to maintain A/F sensor operating Many A/F sensors use the same wiretemperature, the ECM will stop cycling the sensor. color scheme. A common diagnostic blunder is to assume the A/Fsensor heater is bad based only on the trouble code.The odds are certainly stacked in favor of a bad sensor,but fuse, wiring, and even ECM-driver problems docome up from time to time, so it’s wise to check thewhole heater circuit. Playing the odds may damageyour shop’s reputation with your customer, or yourreputation with your boss. Before checking the heater circuit, verify that theproblem that caused the trouble code is current by run-ning a DTC confirmation. Check the manual for thevehicle-specific procedure, but typically the DTC confir-mation involves cycling the key on, then off for at least10 seconds, starting the car, and letting it idle, or idlefollowed by revving, then returning to idle. The heater Check the heater element resistancemonitor can usually be run with the car in the bay in with an ohmmeter. Nissan & Infiniti Tech News | 13
  • 13. Nissan & Infiniti AF Sensors 3.Check for the ECM ground pulse at the sensor connector (still plugged in). An oscilloscope is the best tool for this test, but a DMM with duty cycle, Hz, or pulse width can also be used.TIP: Disassemble and scavenge terminals fromthe O2 and A/F sensor sensors you replace.Some are male and some are female. Theycome in handy to make a solid DMM connec-tion for future testing.1.Disconnect the sensor connector and check resist ance across the heater wires on the sensor side connector. Compare the resistance to the specifica tion, typically between 2-5 ohms at 77F deg. F. Be sure to allow the sensor to cool before testing An oscilloscope will provide more information, but a DMM that can measure Hz, duty cycle, or pulse width can also be used for a quick check of ECM heater control.Check for power while the heater is operating. Sometimes a heater code does not reset following a2.Reconnect the sensor connector and check for DTC confirmation, and a check with a generic scan tool power at the sensor connector while the circuit is will reveal the heater monitor has passed. Intermittent loaded. To do this, just hook up a voltmeter to the faults can be frustrating for both shops and customers. 12V+ wire at the sensor with the sensor plugged in Sometimes wiggle and tap testing will flush out the and start the car. If you find battery voltage at the fault, especially if the problem is not with the A/F connector while the heater is on, it’s good. A poor sensor, but other times the problem will need to “get connection or faulty relay can easily be missed if the worse” before it can be conclusively diagnosed. connector is unplugged or the heater is not loading The diagnosis of A/F sensor heater codes is not the circuit while testing. much different from that of O2 sensor heater codes,14 | Nissan & Infiniti Tech News
  • 14. other than the lower resistance of the heater elementand differences in ECM control of the heater, so manytechnicians find no problem in making the switch fromdiagnosing O2 heater codes to A/F heater codes. However, diagnosis of the sensor output is a wholedifferent animal, and has created a fair amount of con-fusion, as well as some inventive but time consumingdiagnostic techniques involving jumpers, ammeters, andoscilloscopes. The truth is that other than an inspectionfor exhaust leaks, there is no reason to leave thecomfort of the cabin. The CONSULT is your friend. It would be foolish to diagnose an O2 sensor outputfrom the driver’s seat. An oscilloscope is still the bestway to gauge O2 sensor health. Rise time, maximum Will it come out without a fight?voltage, minimum voltage, and cycle frequency are stillthe best diagnostic tests. It would be equally foolish to rapid changes in air/fuel ratio. If it’s not easy to leaveattempt to diagnose the A/F sensor from under the the bay for a quick spin, you could also use propane orhood. The CONSULT has all the information you’ll need. large vacuum leaks to force the mixture rich or lean There is a variety of A/F sensor designs, and sensor while monitoring A/F sensor response. Many of theoutput varies depending on the vehicle. Some sensors newer vehicles with throttle-by-wire also have a CON-will output 1.5V with a 14.7:1 ratio, others will output SULT-guided DTC confirmation test, which makes test-2.2V at 14.7:1, and then there are those that will out- ing even easier, because you will not need a known-put 3.3V at 14.7:1. However, they all share something good sample to compare against, nor will you need toin common: they should respond rapidly and dramati- guess at the good/bad threshold.cally to sudden changes in the A/F mixture. The manu-al will have a ratio/voltage graph, so it’s easy enough to Replacing A/F sensorsfind out what the voltage should be at 14.7:1. However,to truly know what normal response should be for a A/F sensors are pretty easy to replace when all goesparticular car, you’ll need to check sensor output on well. Unfortunately, sometimes all does not go well.known good cars. First, exhaust sensors can get stuck. It’s best to treat The next time you have the CONSULT hooked up to a every sensor as if it’s going to be stuck. Spray it withNissan, take a peek at the A/F sensor voltage and snap plenty of penetrating lubricant and let it soak a bit. Usethe throttle a few times while watching the response. a solid sensor socket and break the sensor free with aDepending on the car, it may be necessary to limit the sharp rapping motion. If the sensor does not spin bynumber of PIDs to get good update speeds. The TPS hand after it is loosened, spray it with additional pene-and A/F sensor are all you’ll need. You should notice trating oil before continuing to remove. If the threadsthat when you snap the throttle, the sudden rush of air are galled, don’t install the new sensor until they’vecreates a momentary lean condition and high A/F sen- been repaired. An inexpensive tool, the 18mm Oxygensor voltage. The ECM will respond quickly with a burst of Sensor Thread Cleaner (J-43897-18) can purchasedextra fuel, which will arrive just as the throttle is closing, from http://tools.nissantechmate.com to clean thecreating a rich condition and low A/F sensor voltage. threads and condition the gasket mating surface. As A/F sensors age, the amplitude of their response Lastly, A/F sensors are a bit delicate, despite theirwill decrease. An A/F sensor that is setting a code will ability to survive in a very hostile environment. Nissanhave low amplitude, maybe 0.5V peak-to-peak or less. says to discard any A/F sensor that has been droppedAn A/F sensor that is good will have a larger swing, from a height of 19.7” inches or greater. Wipe the oilmaybe 2.0V or more peak-to-peak. After you’ve built off your hands before installing an A/F sensor so youyour database, you’ll be able to hop in the car, snap the don’t fumble. Either that or keep the car close to thethrottle a few times while watching live data, and then floor during the installation. When installing the newbreak for lunch. A/F sensor, use the provided anti-seize lubricant on the If the vehicle has throttle-by-wire (and most newer threads. This will help the next guy who removes theNissan vehicles do), you’ll need to drive the car to force A/F sensor (maybe you!) | Nissan & Infiniti Tech News | 15
  • 15. Nissan & Infiniti Tech News Feature| Diagnosing P030x Codes When a misfire is imperceptible, you may need to use the ECM as your “eyes” and “ears”. Learning to use freeze frame data and pending codes will speed diagnosis and reduce comebacks.16 | Nissan & Infiniti Tech News
  • 16. ® The misfire detection monitor, found on all 1996 will accelerate as the piston is forced down in theand newer Nissan and Infiniti vehicles, will detect cylinder. The ECM monitors this acceleration using amisfires long before they become noticeable from crankshaft position sensor. If the acceleration is slowerthe driver’s seat. This was a great advance for in one cylinder than the others, it stands to reasonthose who like to keep their cars running at peak there was less power being generated on that cycleefficiency with minimal emissions (and who would- (a misfire). Thus, the ECM is able to detect a singlen’t?). But, the sensitivity of misfire detection can misfire, even at 3,000 RPM. For us, this is too fast tomake diagnosis frustrating, because a car that detect. For example, on a four cylinder, that wouldseems to be running fine may repeatedly set a mis- mean picking one irregular power stoke out of 100fire code. When diagnosing an imperceptible mis- that had just occurred in a single second.fire, a technician must rely on the ECM for help A severe misfire will provoke a different ECMwith confirmation and diagnosis. Before jumping response than a mild misfire. A severe misfire willinto a discussion of diagnostic techniques, let’s talk trigger One Trip Detection Logic. A less severe misfirea bit about the reasons for misfire detection and will trigger Two Trip Detection Logic. “Trips” are meas-how it works. ured in key cycles for the misfire monitor. As long as One of the most important reasons for misfire the car is warmed up and has adequate fuel, thedetection is to protect the catalytic converter. When a misfire monitor will run continuously while the enginecylinder misfires, it sends all or part of its air/fuel is running. There is not a drive pattern that must becharge into the converter, causing the temperature to followed to get the monitor to run, although a specificrise. If too many misfire events take place, the catalyst drive pattern may be necessary to duplicate the misfire.will overheat and suffer permanently damage. The It’s important to note that the key must be cycled offamount of acceptable degradation on modern catalysts for at least 10 seconds to complete a trip.is very low, due to ever-tightening emissions standards. If a misfire is severe enough to cause rapid damage toCatalytic converters are quite expensive, so rapidly the catalytic converter, the ECM will blink the MIL asdetecting and correcting a misfire is very important! soon as the problem is discovered. This is called One If the air/fuel charge does not ignite fully, its poten- Trip Detection Logic. If the misfire condition subsequent-tial energy is not converted into motive force. If fuel is ly becomes less severe, the MIL will be turned off provid-being used, but is not pushing the car down the road, ed a misfire has not been detected on a previous trip.the MPG will decrease. With current fuel prices, a If the misfire won’t cause rapid damage to the cat-typical driver with a typical car might spend $3,000 alytic converter, the ECM will “remember” the misfire onper year on gasoline assuming it’s running properly. the 1st trip, but will not turn the MIL on. Then, if aThis is a pretty compelling reason to ensure a car misfire is detected on a 2nd trip, the MIL is illuminatedruns as well as possible. steadily. A Pending Code will be set after the 1st, so Another reason for early detection and elimina- even though the MIL will not come on, you’ll havetion of misfires is engine wear. The unburned fuel access to the pending code with the CONSULT orin a cylinder with an ignition misfire or excessive a generic scan tool.fuel delivery may wash the oil film from the cylinderwall, causing the piston ring to contact the cylinderwall and result in accelerated compression loss, as Analyzing codes and freeze-frame datawell as oil dilution, further increasing wear onbearing surfaces. The key to quick diagnosis lies in planning a logical attack based on available information. When faced withEarly detection a MIL, the first step is to talk to the ECM and find out what it knows. The trouble codes and freeze frame So how does the ECM detect misfires that go data don’t hold the answers, but they do hold importantunnoticed by the driver? Simply, it monitors crank- clues. At the start of a diagnosis, they contain the infor-shaft speed. With each power stroke, the crankshaft mation you’ll need to plan your next steps. So instead Nissan & Infiniti Tech News | 17
  • 17. Nissan & Infiniti Diagnosing P030x Codes ACTIVE TEST cylinders, or a leaking injector on cylinder #6 (driving REAL-TIME DIAG cylinders #2 and #4 lean). POWER BALANCE CYL 3 MISFIRE (P0303) Like a flow chart, these few examples do not cover MONITOR all possibilities, and there are many different engine CMPS-RPM(POS) 813rpm MAS AIR/FL SE 1.31V designs and control strategies, so a pattern that might IACV-AAC/V 48% have possible meaning on one car may not on another. The point is that by looking for patterns and thinking about what might be causing them on your particular vehicle, you can eliminate unnecessary testing and 1 2 4 RESET jump straight to the tests that are most likely to yield 5 6 useful results. STORE DISPLAY BACK LIGHT COPY If you’re lucky enough Freeze-frame data to be assigned If you monitor live data with a car with a Freeze frame data (FFD) is very important when the CONSULT, it will alert you consistent misfire, the when a pending code sets, diagnosing the cause of a misfire code. A cursory Power Balance Active Test and automatically start a data glance and printout will not do. Really examine the is handy to verify recording that you can review FFD. Read each PID and try to imagine what the car the misfiring cylinder. frame-by-frame. was doing when the code set, then verify your imag- ined operating scenario by driving the car and watching the same PIDs in live data.of rushing to start “checking stuff,” or blindly following Knowing the operating conditions that cause thea flow chart, take a few moments to look at the codes misfire is not only important for trying to duplicate theand the freeze frame data and see if you can think like conditions when the codes set, it’s also important foran ECM, applying what you read in the manual about determining the likely cause of the codes. If a codethe DTC detection logic, and combining it with your was set at idle, you might lean towards checking forunique human intelligence and knowledge of internal vacuum leaks or compression. If a code was set at lightcombustion engine operation. A diagnostic flow chart, cruise, you might want to look at injectors or EGR. If ano matter how well thought out, will never provide the code was set at high load, the secondary ignition orfastest path to the right conclusion; in fact it may lead fuel delivery become prime suspects.to no conclusion, or even worse, the wrong conclusion. It should be noted that the FFD is sometimes aStep one: put on your “thinking cap”. bit delayed, especially on older models, so the FFD captured may be a second or so behind the event thatSeeing patterns resulted in the code setting. For instance, if the driver was at wide open when the misfire counter reached Sometimes, misfire codes come in bunches. Looking the threshold, then suddenly decelerated, the FFD mayfor patterns in the cylinder numbers can sometimes be misleading. It’s not a perfect world; it’s better tolead you to a more fruitful diagnostic path. Nissan have access to information that is usually right than tocylinders are numbered as they are laid out on the have no access at all. If diagnosis were always easy,crankshaft. On a V6, the cylinder closest to the crank our paychecks would be a lot smaller.pulley is #1, and the farthest from the pulley is # 6. If codes P0301, P0303, and P0305 were stored, it Driving by the numberswould be a clue that there is a problem common to allof the cylinders on Bank #1. Perhaps this is caused by The other important use of freeze frame data is toa stuck VVT sprocket, or a clogged B1 converter, or a duplicate the conditions that caused the misfire. Therebad B1 A/F sensor, or a wiring problem particular to are three reasons you’ll need to do this.the injectors or coils on Bank #1. First, you’ll need to confirm that the misfire can be If codes P0302 and P0304 were stored, you’d want duplicated now. If the misfire was caused by a transientto think about problems that would affect only those condition, water trapped in a spark plug tube fortwo cylinders, such as a head gasket blown between instance, then you will not be able to confirm the cause18 | Nissan & Infiniti Tech News
  • 18. or any repair. You may be able to find the cause and fixit without current symptoms through inspection andguessing, but you’ll never know for sure without abefore and after confirmation. Secondly, once the misfire is confirmed, swap testingis an excellent technique for isolating the cause.Swapping parts from cylinder to cylinder, and applyinglogic, can lead to a rapid diagnosis and a confirmationthat you have come to the correct conclusion. Manyengines have limited access to coils, plugs and injec-tors. When working with engines like this, it makessense to reposition multiple parts at the same time. For example, let’s say a V6 engine has a P0303,and the coil and injector are buried under an intakeplenum. Once you’ve confirmed the misfire is still Print freeze-frame data. Keep it with yourpresent on cylinder #3, you’ll want to get maximum paperwork in case you need to refer to it later.value for the time you spend removing the plenum. Ifyou swap coil #3 to cylinder #1 and vice versa, injec-tor #3 to cylinder #5, and plug #3 to cylinder #2,the misfire will follow the bad part. (It also makessense to check compression on cylinder #3 whilethe plug is out). After the swap, confirm the misfireagain. If it moved to cylinder #1, the coil is bad. If itmoved to cylinder #5, the injector is bad. If it movedcylinder #2, the plug is bad. If it stays with cylinder#3, it’s not the coil, plug or injector, so focus onengine mechanical problems like vacuum leaks, valvesealing, etc. The final reason to use FFD in misfire diagnosis isconfirmation of the repair. Once customers have paidthe bill, they aren’t likely to want to spend any more Sometimes you get lucky and can see themoney fixing the same code. Running a DTC confirma- problem, but only if you take the time to looktion procedure takes some time, but it’s time that can carefully.be billed. Time spent ensuring the car is indeed fixed isalways time well spent. It protects your reputation, time,and avoids inconveniencing your customer.Looking through the ECM’s “eyes” If a tree falls in the woods, and there is no one thereto hear it, does it make a sound? Likewise, if a cylindermisfires imperceptibly, is there really anything in needof repair? If the misfire monitor is there to tell the tale, then yes,there is. Because the ECM is detecting what we can-not, we should let it guide us in our diagnosis. The FFDwill tell us which road to take, and pending codes willtell us of our success or failure. When confronted with Ignition and spark problems may be the mosta P030x, we’re working for the ECM. It both guides us common cause of misfires, but don’t neglectand judges our success. | your compression and vacuum gauges. Nissan & Infiniti Tech News | 19
  • 19. Nissan & Infiniti Special FeatureWholesale PartseStore Coming Soon! Developed in conjunction with industry-leader TradeMotion, Nissan and Infiniti will be launching a new Wholesale Parts eStore. Through this exciting new e-commerce site, independent Nissan and Infiniti repair professionals will be able to purchase replacement parts, accessories, performance parts and NISMO directly from participating Nissan and Infiniti dealers. In addition, you will be able to access the most current electronic parts catalogue for easy search and selection.The Wholesale Parts eStore will include:• Full VIN decoding for proper part application• Complete illustration with callouts• Direct OE Parts Data from Nissan• No cost for your use to look up or order parts• Ability to attach pictures of your requirements• One Stop Shop for Nissan Parts and Accessories• Special pricing and promotion opportunitiesWatch for additional Nissan and InfinitiWholesale Parts eStore information.20 | Nissan & Infiniti Tech News
  • 20. Nissan & Infiniti Tech News | 21
  • 21. Nissan & Infiniti Tech News Feature| Body Basics Equipment & Tools Every day, more and more independent body shops are forming relationships with Nissan and their local Nissan and Infiniti dealer- ships to avail themselves of Genuine Nissan and Infiniti parts, service information and special service tools. The benefits of such a relationship are procuring parts that make it possible to return the vehicle exactly to its pre-accident condition, that are manufac- tured in the same factories with the same materials and process- es as those installed on the assembly line, and that are backed by the same company that engineered and made the car in the first place. Also, this gives the independent access to the best possi- ble, up-to-date service information, and tools that work perfectly. Independent shops that purchase parts from Nissan and Infiniti dealers have found the arrangement to be the most cost-effective course. Thats not only because they are price- competitive (and the chance of getting the wrong part is almost nil), but more importantly because precision mounting holes save time, making the shop more profitable. Plus, the rapid delivery, ability to return parts, and local community attachment works out best for both parties. Add to all this the protection of Market Shield and the convenience of Collision Link, and you have an unbeatable combination. Using the Nissan and Infiniti technical information websites aking full use of www.nissan-techinfo.com or www.infinititechinfo.com ensures getting the proper information to get the job done right, the first time and quickly. There’s no waiting for a call back from a third party information provider when time is of the essence. Nissan also provides a way to obtain the special service tools that Nissan and Infiniti dealers use to service its vehicles. These special service tools can easily be procured via the TechMate website at www.nissantechmate.com. Nissan and its dealers value these relationships with independent collision/body service shops and make it easy to obtain and use everything you need to properly service Nissan and Infiniti vehicles. In this issue, we will look at the equipment and tools a mod- ern body facility should have to function at optimum efficiency. 22 | Nissan & Infiniti Tech News
  • 22. ®In this first of a series of body service articles, we willcover collision equipment and tools that Nissan suggestsindependent shops have and use to properly repair damageto Nissan and Infiniti vehicles.Proper Equipment and Tools Nissan has a list of recommendations for its dealercollision and body repair facilities. Perhaps the list canbe used as a guideline for independent facilities thatalready have a profitable relationship with their localNissan or Infiniti dealer, or for those wishing toestablish such a mutually-beneficial relationship. The following outline is merely a list of the bestpractices in creating a top-notch body service facilityfor repairing modern cars and trucks, including Nissanand Infiniti vehicles.General Workshop Nissan lists these general workshop items as beingstandards for optimum results when performing body For the best results, always keep your sprayservice: guns in top condition.• A dedicated paint mixing room with exhaust fume extraction that Paint Shop Tools and Equipmentcomplies with local legislation. The lighting in the paint mixing roomshould be set to a minimum of 750 lux. Here are guidelines for the painting & finishing areas:• Appropriate storage for hazardous materials and liquid waste. A paint spray booth that will meet at a minimum these specifications:• Lighting with a minimum of 70 foot-candles in the metal working area - Lighting at a minimum 100 foot candles at the center of the booth(measured at 36” above the floor surface), a minimum of 90 foot-candles with upper and corner color-corrected fluorescent lamps.in the paint shop, paint preparation areas, and detail shop. - Air handling and heating requirements: Exhaust system to be capable of 125 ft/minute measured at• Color matching areas should have color-correct lighting. the face of the vehicle shell and a minimum of 19,000 CFM.• A high-pressure, high-volume compressed air system providing oil-free - A heat supply system with direct-fired burners with a minimumand moisture-free compressed air. of 1.5 MTBU capacity. - Equipment designed, constructed and installed in accordance with• An electrical diagnostic system and capability of diagnostic analysis for the BOCA Building and Materials Codes, NFPA 33 and 70, OSHA andNissan vehicle electrical systems. all applicable local, state, and federal codes.• Personal protective equipment must be available to all employees. An adequate number of electric buffers and polishers. Nissan & Infiniti Tech News | 23
  • 23. Nissan & Infiniti Body Basics Painter suits and other protective safety gear suitable for use when mixing and applying the specified refinish materials. An enclosed paint gun cleaner. A solvent recycler that is compliant with local, state, and federal laws, and a compliant hazardous waste disposal system.Metal Shop Tools and EquipmentThe following is list of suggested metal shop equipmentand tools: A three-dimensional electronic measuring, and/or fixture system with an A modern fixture and measuring system is anchoring and straightening rack or bench to allow 360° pulling and mandatory for precise repairs. access to Nissan body dimensions data for damage analysis and repair. All the necessary anchoring and pulling accessories including clamps, fixtures, and chains. A squeeze-type resistance spot welder (STRSW) capable of welding high and ultra-high strength steels. Machines in this category will generally produce a minimum of 9,000 amps with a minimum of 600 p.s.i. squeeze force at the electrodes and have manual or automatic settings for steel types and coatings. The facility wiring must be capable of supplying adequate power to the machine as specified to produce acceptable welds. Test welds using the same metal type and thickness of the vehicle being repaired can be produced and be destructively tested to verify the machine and facility wiring capability and performance. A MIG welder capable of producing 140 amps output. You should have all the pulling and anchoring accessories. An induction heater to provide flameless heat when controlled heating is required. A heat monitoring system or a non-contact thermometer is also required. Fire-retardant welding blankets (a minimum of two per each GMA and STRSW machine). A masking paper and tape and welding spark paper dispenser. A mobile fuel retrieval system. An R134a refrigerant recharging/recovery/recycling station and, at least one technician certified to operate this equipment. An A/C leak detection tool (sniffer-type). Portable hydraulic rams with 4 and 10-ton kits. Pressure-feed corrosion protection material application equipment that has wand attachments for applying anti-corrosion materials A spot welder and an assortment of tips inside body cavities with a 360° spray pattern. ensures the strongest welds. 24 | Nissan & Infiniti Tech News
  • 24. A dent-pulling stud welder for steel and aluminum panels. A battery charger with start and boost capability. An adequate number of hydraulic floor jacks, jack stands and ramps to allow vehicles with low ground clearance to be loaded onto lifting equipment without damaging the vehicle. A caulking/sealer applicator gun kit. A heat gun. A coolant pressure tester, manual or electronic pressure test system. A spot sand/media blaster hand-held tool for small area blasting. A high-amp MIG welder is invaluable Plastic welding and adhesive repair equipment for for body service. plastic/urethane parts. A headlight alignment system.Resources The best source for obtaining many of theseNissan-Approved items is the Nissan Techmate websiteat www.nissantechmate.com.The TechMate website can also be accessed throughthe Nissan and Infiniti Technical Information websites atwww.nissan-techinfo.com and www.infiniti-techinfo.com,without having to purchase a subscription or logging on. Here’s a list of Nissan-approved suppliers. Many morecompanies also offer excellent equipment and tools forbody service:Bench Aligning Systems A masking paper and tape dispenser savesBlackhawk Equipment www.blackhawkequipment.com time and gets the job done right.CAR-O-LINER Company www.car-o-liner.comChief Automotive Technologies Inc.www.chiefautomotive.comPaint Booths and AccessoriesGlobal Finishing Solutions www.globalfinishing.comGoff’s Enterprises www.goffscurtainwalls.comVacuum Sanding EquipmentEurovac Inc. www.eurovac.comAir Compressor Systems,Air Dryers and AccessoriesChampion www.championpneumatic.comCurtis-Toledo www.curtis-toledo.comWelding Equipment An R134 refrigerant recharging/recoveryBlackhawk www.blackhawkequipment.com /recycling station helps you meet regulations,Pro Spot www.prospot.com | saves time and holds down costs. Nissan & Infiniti Tech News | 25
  • 25. Nissan & Infiniti Tech News Feature| Collision Service on Nissan High Voltage Vehicles “Do no harm” to life or car when repairing Nissan LEAF or Altima Hybrid vehicles.26 | Nissan & Infiniti Tech News
  • 26. ® Technological change and rising complexity areconstants in collision repair. Whether unibody design,advanced high-strength steels, exotic alloys, or carbonfiber, innovation has ratcheted up the service knowl-edge, equipment, training, and associated repair tech-niques required. Today, the electric vehicle (EV) chal-lenge for collision repairers is at hand. Resistance isfutile. Preparing, adapting, and training for the inboundchange is not.Nissan’s EV portfolio is growing At Nissan, the electric tide is evidenced by the AltimaHybrid and the all-electric Nissan LEAF – with moremodels on the way. Even conventional vehicles areincorporating electrified components such as start-stop The Leaf 220/240V Level 2 (right) and 440/480Vtechnology or electric air conditioning. EVs will get into Level 3 (left) charging ports are located under aaccidents, with many of the subsequent repairs being panel above the front bumper.made at independent collision facilities. The 2011 LEAF combines an air-cooled, 650-pound, controls, the U.S. Environmental Protection Agencylithium-ion battery pack and high-response 80kW AC says the LEAF averages 73 miles. It found that usingsynchronous motor to operate the vehicle’s 400V com- the LEAF’s electric air conditioning system, heavyponents. LEAF batteries are warranted for 100,000 stop-and-go traffic, faster speeds, cold winter tempera-miles or eight years. At the end of 10 years, Nissan tures and hilly environments can all reduce range.projects that the battery pack will still retain 70 to 80 The battery pack frame sits underneath the LEAF andpercent of its capacity. helps provide greater body rigidity than a conventional Nissan says the LEAF has a range of 100 miles in compact car has. The pack consists of 48 laminatedoptimal driving conditions. Based on five-cycle tests modules, each containing four cells, for a total of 192that employed varying driving conditions and climate cells connected in series. Currently, an on-board 3.3-kilo- watt battery charger recharges the battery pack. This will be upgraded to 6.6-kilowatts for 2012 for faster recharging, with retrofits available for 2011 models. Owners have two recharging options. Each uses a SAE J1772 plug, which connects to the driver-side charge port located under a panel at the front of the LEAF. The other end of the cord connects to a power supply. Any standard 110V supply can be used to fully recharge the LEAF in 21 hours (Trickle). Alternately, home-based and public 220/240V (Normal) recharg- ing stations, recommended by Nissan, will do so in seven hours. Should the U.S. adopt emerging 440/480V (Quick) chargers and plugs, the other charge port could be used to recharge the battery pack The all-electric 2011 Nissan LEAF combines to 80 percent capacity in just 30 minutes. However, an air-cooled lithium-ion battery pack and a Nissan cautions that Level 3 recharging will cause 10 high-response 80kW AC synchronous motor percent or greater loss in battery capacity over a to operate the vehicle’s 440V components. 10-year period. Nissan & Infiniti Tech News | 27
  • 27. Nissan & Infiniti Collision Service on High Voltage Vehicles Certified Electric Vehicles (EV) Dealers begins with this statement: “To ensure the safety of body shop person- nel, EV battery and high-voltage (HV) parts located near the damaged portion of the vehicles shall be removed and installed by a certified EV dealer. Certified EV dealers have the facilities, equipment and exclusive- ly-trained technicians to safely service your vehicle. The EV should only be delivered to a body shop after removing the battery pack, high-voltage parts and any related parts that may be an obstacle to the body repair and painting process.” That’s fine should an Altima Hybrid or LEAF arrive at your collision repair facility from a certified EV dealer- ship, but what if an EV arrives at your facility directly from an accident? Liaison with a Nissan-certified EV dealer is one solution. Becoming EV-ready is another. To do so, key resources such as information, tooling and training must be sourced and aligned to overcome resistance, apprehension and fear. Nissan/Infiniti service technical information websites are a must-use resource Service information is a dynamic, evolving database. The LEAF is brand-new and the Altima Hybrid is less than five years old. The Nissan (www.nissan-techin- fo.com) and Infiniti (www.infiniti-techinfo.com) serviceThe 2007–2011 Altima Hybrid combines 244V information websites provide collision professionalstechnology and nickel metal hydride battery with access to the most current and accurate Altimapack with a 2.5L Nissan internal combustion Hybrid and LEAF service/repair information, technicalengine. service bulletins, schematics, diagrams and useful pub- lications. They should be your primary information In comparison, the Altima Hybrid combines a smaller- source and be consulted before any collision techniciansized nickel metal hydride (NiMH) battery pack supple- ever touches an EV body.mented by a 2.5L Nissan gasoline engine to power For example, the websites provide year-specific244V high-voltage technology. The engine employs an LEAF and Altima Hybrid service manuals, body repairOtto-based cycle to deliver higher power density, useful and painting manuals, dismantling guidelines, collisionin hilly environments or situations where more range is repair warnings, first responder information and more.needed. Unlike the LEAF, no home or public batteryrecharging is required. Both vehicles, however, have Details include:very expensive high-voltage components, including • When and how to safely remove, store and installelectric A/C compressors, inverters, liquid-cooled DC- high-voltage battery packs.DC inverters, electric drive motors, capacitors, air-cooled battery packs, service plugs and wiring that • Diagrams that show the location of high-voltagerequire both awareness and careful handling. components, cutting locations and instructions for Consider this for a moment: A Nissan/Infiniti publica- the removal of certain high-voltage components fortion titled Body Shop Administrative Manual for specific collision repair operations.28 | Nissan & Infiniti Tech News
  • 28. • Guidelines to safely disconnect the battery pack, Midtronics Inc. Here are some examples of what those then power down high-voltage systems and two companies can provide repair shops and techni- capacitors, and service plug removal. cians wishing to be fully competent (some of which are available through Tech-Mate):• Precautions and procedures for performing welding, painting or other collision repair operations. • DMMs (Digital Multi Meters), such as Fluke’s 88V, differential oscilloscopes, insulated leads and hand• Emergency procedures to follow in the event of a tools must be rated at CAT III 1,000V or better. collision or shop accident. Underrated, defective or damaged DMMs can explode, so technicians should not hold themTech-Mate is the Nissan-approved during use. For eye and face safety, meter readingssource for EV tools, equipment and should always be taken from a side angle.more The high-voltage in battery packs, components andwiring can damage and kill. Frying a complex EV-ratedmultimeter or any of the high-voltage powertrain com-ponents can cost you four figures. The cost of cookingan NiMH or Li-ion battery pack in a paint booth, shouldthe temperatures exceed 140°F, exceeds five figures.In addition, the safety of personnel is also critical. Just40 to 60 volts at 0.50 amps for as little as 20 secondscan kill if it finds a path to the heart. In addition, thehigh-voltage components and magnetic drive motorscan interfere with cardiac pacemakers, defibrillators orother implanted devices inside of personnel. Facilitiesshould check with manufacturers of these medicaldevices before allowing anyone to work on EVs. Proper tooling and equipment – from high-voltagesafety gloves to battery removal equipment – is criticalto preventing damage to expensive EV tools, equip-ment and vehicle components. To help, Nissan/Infinitiprovides a valuable resource to collision facilities: theTech-Mate Tool and Equipment Program(www.nissantechmate.com). Tech-mate is the onlyNissan-approved source for a full range of EV servicetools and equipment. Not only are products tested forperformance before approval, Tech-Mate specialists willalso provide assistance on product selection, applica-tion, service and facility planning. Using the most functional diagnostic scan tool avail-able is essential for the safe, complete collision repairof LEAF or Altima Hybrid vehicles. The Nissan CON- With EVs, just one-tenth of a volt can be theSULT-III Plus is the only scan tool available today that difference between driveability and a no-go. Ancan effect and verify complete repairs for both theNissan LEAF and Altima Hybrid before returning vehi- inexpensive adapter, such as the 225SVE Straycles to customers. Voltage Eliminator, inserted between an 88V Collision professionals can also consider reputable DMM and its leads, can zero-out a multimeteraftermarket suppliers, such as Fluke Corp. or and allow complete repair. (Courtesy Fluke Corp.) Nissan & Infiniti Tech News | 29
  • 29. Nissan & Infiniti Collision Service on High Voltage Vehicles • Midtronics GRX-5000 EV Module Balancer tool, developed for Nissan, enables repair profes- sionals to check all of a LEAF’s battery pack modules to determine which are defective and need replacement. In addition, similar to the way diesel injectors need to be balanced when one or more is replaced. The new tool will also “pre-con- dition” new replacement modules to fit the state of the rest of the battery pack. Seek and maintain EV auto technician certification Thorough EV training and continuing education is necessary to harness the service information and hardware to effect collision repair. It’s essential to properly power down, remove, store or install an EV battery pack or other electrified component, as well as to perform any welding, painting or other repair procedure. And remember, it isn’t enough to get current; staying current is also necessary. The Midtronics HYB-1000 Hybrid Battery Tester determines if an Altima Hybrid battery pack or some of its individual cells are damaged or underperforming. (Courtesy Midtronics Inc.)• As little as 0.10V can be the difference between an EV being driveable and a no-start. Yet many techni cians who use a CAT III, 1000V rated multimeter are not aware that these devices and attachments can harbor ghost voltage that exceeds 0.10V. An inexpensive adapter, such as the Fluke’s 225SVE Stray Voltage Eliminator, can zero-out a multimeter to allow accurate diagnosis. The new GRX-5000 EV Module Balancer• The Midtronics HYB-1000 Hybrid Battery Tester determines which, if any, of a LEAF battery enables a collision technician to determine if an pack’s modules are defective, then precon- Altima Hybrid battery pack or some of its individual ditions new replacement modules to match cells are damaged or underperforming and need the state of the battery pack. replacing, before beginning collision repair. (Courtesy Midtronics Inc.)30 | Nissan & Infiniti Tech News
  • 30. Would you know if and how to safely remove a LEAF or Altima Hybrid battery pack? Nissan/Infiniti service information, Tech- Mate equipment and tools, and approved automaker and after- market training are essential. • Downloadable electronic training includes the LEAF EV Technologies Course, a four-day, For example, consider what is involved should the classroom-style, instructor-led, competency-650-pound battery pack need to be removed from based, technical learning experience. It providesunderneath a LEAF. Not only does the pack need to a detailed look at the systems, operation, andbe disconnected from the vehicle first, the remaining safety procedures for the LEAF.components must be disabled and discharged safely.The removal process also requires a special portable • Video training includes Volume 162:platform jack that supports the battery so that it can be CONSULT-III Plus, and Volume 156: Replacinglowered just enough to safely and properly remove bolts the Altima Hybrid Battery, which looks at theand disconnect high-voltage wiring cables. Once discon- procedures for replacing the high-voltagenected, the “live” battery pack must then be lowered and (HV) battery. It covers a battery system stored safely and securely out of harm’s way, typically overview, the training required, necessary safety on this platform, with caution tape or precautions, and the procedures for disassem warning signage. bling and removing the HV battery and the individual components of its subassembly. The Nissan and Infinti websites provide training and educa- • E-Module training includes the Introduction to tion links for this and EV Technologies and Introduction to EV Safety other collision repair and Overview. Both are available to any operations for person holding a valid Nissan/Infiniti website the LEAF and subscription. Altima Hybrid. Training is Today, over three million hybrids have been sold available in worldwide, two million of them here in the America. three formats – More partial or full EVs are coming, as they help downloadable tradi- automakers meet tougher fuel economy and emis- tional classroom manuals, e- sion regulations. That commitment is going to learning modules, and specialized impact your business. Don’t let the opportunity totraining videos. Here’s one example of each type: perform EV collision repairs pass you by. | Nissan & Infiniti Tech News | 31
  • 31. Nissan & Infiniti Tech News| Nissan & Infiniti Program DealersA LA B A M A A RK ANS AS F RE SN O P AL MD AL E SI MI V A L L E Y LITHIA NISSAN OF FRESNO ANTELOPE VALLEY NISSAN FIRST NISSANB E SSE ME R N O RT H LIT T LE R OCK 559.435.3500 661.274.9556 805.526.5007MOORE NISSAN NORTH LITTLE ROCK NISSAN205.428.6314 501.604.3955 GA R DE NA P ET A L U MA SI GN AL HI LL GARDENA NISSAN INC NORTH BAY NISSAN INC HOOMAN NISSAN LONG BEACHB IR MI NG H AM C A L IF O R N I A 800.788.0772CROWN NISSAN 310.527.9215 800.973.3689205.823.5266 A LH AM BR A GL EN DA LE R ED L AN D S SU N NY V ALE ALHAMBRA NISSAN GLENDALE INFINITI METRO NISSAN OF REDLANDS NISSAN SUNNYVALEB IR MI NG H AM 626.289.7802 888.505.9211 408.470.4150JIM BURKE NISSAN 818.547.0520205.278.5904 A N TI OCH R ED WO OD CIT Y ANTIOCH NISSAN GL EN DA LE T EM EC U L A GLENDALE NISSAN PENINSULA INFINITI LLCF A YE TT E V ILLE 925.281.5050 650.569.4228 QUALITY NISSAN/TEMECULASUPERIOR NISSAN 818.547.5550 951.587.3772479.442.4251 B A K ER SF I E L D R ICH MO ND NISSAN OF BAKERSFIELD GO LE T A T HO U SA ND O AKS SANTA BARBARA NISSAN, LLC HANLEES HILLTOP NISSANH U NT S V ILLE 661.396.4035 510.222.4900 NISSAN OF THOUSAND OAKSLANDERS MCLARTY NISSAN 805.964.2990 888.705.4441256.830.0266 B A K ER SF I E L D R I V ER SI D E INFINITI OF BAKERSFIELD HA WT H OR N E T OR R AN CE POWER NISSAN OF SOUTH BAY RIVERSIDE NISSANM OB IL E 661.617.2020 951.688.9420 INFINITI SOUTH BAYPAT PECK NISSAN 310.536.4000251.470.5052 C A R SO N 310.517.0570 R I V ER SI D E CARSON NISSAN HU N T ING T O N B E ACH RIVERSIDE INFINITI 310.221.5121 SURF CITY NISSAN T US T INA LA S K A 800.919.8130 INFINITI TUSTIN 714.500.6040A N CHO R AG E CA T HE D RA L CIT Y R OS EV ILL E 714.832.6252CONTINENTAL NISSAN/ANCHOR PALM SPRINGS NISSAN I MP E R I AL FUTURE NISSAN, INC907.334.6230 760.328.2828 ROGERS & ROGERS NISSAN 916.677.5251 T US T IN 760.352.2900 TUSTIN NISSAN CE R RIT O S R OS EV ILL E 714.669.8288A N CHO R AG E CERRITOS INFINITIINFINITI OF ANCHORAGE IR VI NE SACRAMENTO INFINITI INC 562.405.3535 OC NISSAN-IRVINE 916.782.2253 V AL E N C I A907.272.4022 800.515.4797 NISSAN OF VALENCIA CE R RIT O S SA CR AME N TO CERRITOS NISSAN MAITAS NISSAN SACRAMENTO 866.751.0234A R I Z ON A LO S A NG EL ES 800.396.7278 NISSAN OF DOWNTOWN L.A. 916.486.8743A V ON D ALE V AN N UY SAVONDALE NISSAN C H IC O 888.576.4560 SA N BE RN A RD IN O MILLER NISSAN INC888.856.3322 CHICO NISSAN INC NISSAN OF SAN BERNARDINO 818.374.4493 530.891.0202 LO S A NG EL ES 877.331.3647CH A ND LE R UNIVERSAL CITY NISSAN INC V ICT O RV IL LEPOWER NISSAN CHANDLER CO LM A 818.980.0655 SA N DI EG O VALLEY HI NISSAN480.461.4358 SERRAMONTE NISSAN KEARNY MESA INFINITI 888.293.7762 650.488.2870 MIL LBR A E 858.573.1755M ES A DALAND NISSAN INC 650.697.8394 SA N DI EG O V I S AL I ACOULTER INFINITI CO N CO RD877.415.3521 DIRITO BROS CONCORD NISSAN MOSSY NISSAN KEARNY MESA NISSAN OF VISALIA 888.899.4173 MI S SI O N H I L L S 858.565.4411 559.741.2274M ES A NISSAN OF MISSION HILLSEARNHARDTS NISSAN/SUPER CO N CO RD 818.408.5870 SA N DI EG O W E S T C OV I NA480.324.8880 NIELLO INFINITI PACIFIC NISSAN WEST COVINA NISSAN 925.676.9592 MI S SI O N V I E JO 800.365.6429 626.388.9300M ES A INFINITI OF MISSION VIEJOLARRY H. 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  • 32. 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AURORA RAY BRANDT NISSAN INC888.479.5890 M OR R OW 630 907 0867 504.363.1918 PA LME T TO B AY NISSAN SOUTHS HE L T O N MAROONE NISSAN OF KENDALL HO U MA 770.968.1360 O FA LLO N GREG LE BLANC NISSANDADDARIO NISSAN 305.259.2658 AUFFENBERG NISSAN800.998.6978 985.447.1111 PA LME T TO B AY R O ME 618.622.4646 SOUTH MOTORS INFINITI HERITAGE NISSAN MET A I R I EWE ST S IMS BU RY 706.295.0525 OA K LA WN PREMIER NISSAN/METAIRIEHOFFMAN NISSAN 305.256.2070 KELLY NISSAN INC 504.455.5880860.658.3340 R O SW E L L 708.425.6659 PA NA MA CIT Y MET A I R I E JOHN LEE NISSAN REGAL NISSAN INC.WI LT O N 770.998.8686 OR LA ND PA RK RAY BRANDT INF/METAIRIEBRUCE BENNETT NISSAN 850.785.9561 INFINITI OF ORLAND PARK 504.832.2005203.544.8371 PE MB RO KE PIN ES U N IO N C IT Y 708.343.3800 INFINITI OF SOUTH ATLANTA M A R Y LA N D MAROONE NISSAN/PEMBROKE OR LA ND PA RKD E L AW A RE 954.447.2366 678.369.6074 AN NA PO LIS ORLAND PARK NISSAN INC 708.403.1673 SHEEHY INFINITI/ANNAPOLISNE W C A S T L E PE NS ACO LA U N IO N C IT Y 888.288.5162SHERIDAN NISSAN LLC SANDY SANSING NISSAN INC NISSAN SOUTH UNION CITY P EO R I A302.326.6134 850.479.4777 770.306.9817 UFTRING NISSAN INC BA LT IMO R E 309.690.6230 ANTWERPEN SECURITY NISSAN PO MPA NO B EA CH H AW AI I 410.298.5369NE W A RK POMPANO NISSAN, LLCPORTER INFINITI SA IN T CHA RL ES 954.781.7700 H O NO LU LU BA LT IMO R E302.368.6305 INFINITI OF HONOLULU NISSAN OF SAINT CHARLES BOB BELL CHEVROLET/NISSAN S AIN T PET E RS B UR G 888.836.7753 630.584.3900 410.282.2432NE WAR K CROWN NISSANPORTER NISSAN 727.527.8411 H O NO LU LU SK O K I E BE L AI R302.368.6317 NEW CITY NISSAN MARTIN NISSAN BEL AIR NISSAN S AR AS OT A 847.967.2299 410.879.1133 COAST INFINITI 808.545.3111FL O R I D A 941.922.5723 SO U TH H O LLAN D C L AR K SV I L L E L IH UE ANTWERPEN NISSAN INC S AR AS OT A NISSAN OF KAUAI NISSAN OF SOUTH HOLLANDCLEA RW AT ER 800.696.4772 866.226.4930AUTOWAY NISSAN/CLEARWATER GETTEL NISSAN OF SARASOTA 808.245.0525727.507.3200 941.923.1411 ST C H AR L E S ELLI COT T CI TY W AI P A H U NORRIS NISSAN WEST T AL L AH AS SE E TONY NISSAN NISSAN OF ST. CHARLESCLEA RW AT ER 630.584.2489 443.549.1260 KRAFT NISSAN 808.680.7140LOKEY MOTOR COMPANY 850.576.6171 FR E DE RI CK727.374.2317 WO OD R IV ER FREDERICK NISSAN T AM AR AC I L LI N O I S AUTOCENTERS NISSAN INC 301.662.4800CLEA RW AT ER SAWGRASS INFINITI 618.251.3057LOKEY NISSAN A R LIN GT O N HE IG HT S GE RM AN T OW N 954.421.0669 ARLINGTON NISSAN/ARLINGTN727.450.7989 I N D IA N A CRISWELL NISSAN T AM P A 847.590.0154 301.670.3900COCO N UT CR E EK COURTESY NISSAN OF TAMPA F I SH ER S 877.471.7658 B A RR IN GT O N GLE N BU R NI EINFINITI OF COCONUT CREEK MOTOR WERKS INFINITI INC BUTLER NISSAN954.861.6117 866.237.0569 SHEEHY NISSAN T AM P A 888.568.3140 877.478.3539COR AL SPR IN GS INFINITI OF TAMPA F OR T WA YN E 888.632.3042 C H IC A G O L AU R ELCORAL SPRINGS NISSAN INC BERMAN’S INFINITI CHICAGO FORT WAYNE NISSAN TISCHER NISSAN954.752.9595 R OY AL PALM B EA CH 312.476.8000 260.484.8801 800.288.6983 ROYAL PALM NISSANDA YT O NA B EAC H 888.229.4132 C H IC A G O IN DI AN APO LIS MAR LO W H EI GH T SDAYTONA NISSAN MID CITY NISSAN INC. 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CAPITOL CITY NISSAN LLC THE AUTOBARN NISSAN TOM WOOD NISSAN INC NATIONWIDE MOTOR SLS CORP800.642.0200 770.457.4441 800.344.3534 317.688.6222 410.252.5834 Nissan & Infiniti Tech News | 33
  • 33. WA LD OR F I NV E R G R OV E HE IG HT S NA SH U A BA YS ID E GR E EN SB O ROSHEEHY NISSAN OF WALDORF LUTHER NISSAN INFINITI OF NASHUA STAR NISSAN INC. MODERN INFINITI LLC301.843.5300 800.246.9984 603.888.2446 718.359.7454 888.232.4118M A SS A C H U S E T T S M AP L E W O O D NA SH U A BL AU V ELT HI CKO RY KLINE NISSAN PETERS AUTO SALES INC ROCKLAND NISSAN CROSSROADS NISSANA UB U RN 651.379.4325 603.579.5205 845.358.3670 828.324.5040BERTERA NISSAN INC508.832.9611 M I S S I SS I P P I N E W JE R S E Y BR O OK LYN MA TT H EW S AV EN E L BAY RIDGE NISSAN INC. INFINITI OF CHARLOTTEB EV E RLY B R AN DO N 718.238.4776ROLAND D. 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HYLAN MOTORS CORPT R OY NISSAN OF OMAHA LLC T UR N ER SV ILL E 718.447.3800 402.493.1945 T OLE D OSUBURBAN INFINITI OF TROY NISSAN OF TURNERSVILLE YARK NISSAN248.731.3400 800.883.0003 SY OS SE T LEGEND NISSAN LTD 419.842.7532 NE V ADAT R OY WO OD B UR Y 516.496.7385SUBURBAN NISSAN OF TROY H EN D ER SO N WOODBURY NISSAN INC O K LA H O M A HENDERSON NISSAN 856.853.8176 W E ST I S L I P248.649.2074 ATLANTIC NISSAN SUPERSTOR 702.558.5974 BR O KEN A RR O W N EW M EX IC O 631.587.2766 NELSON NISSANM I N N E S O TA L AS VE G AS 800.364.4600 DESERT NISSAN ALB U QU E RQ U E WE ST BU R Y 702.262.0540 GARCIA INFINITI ADVANTAGE NISSAN OK LAH O MA CIT YB LO OM IN GT O N 516.935.1813FELDMANN IMPORTS INC 505.217.3002 BOB HOWARD NISSAN INC952.837.6350 L AS VE G AS W H I T E P L AI N S 405.943.9555 PLANET NISSAN ALB U QU E RQ U E MELLOY NISSAN PEPE INFINITI INC OK LAH O MA CIT YB LO OM IN GT O N 702.839.6138 800.344.7660 505.266.8588 BOB MOORE INFINITI INCLUTHER INF OF BLOOMINGTON952.885.7050 L AS VE G AS 405.748.6086 ALB U QU E RQ U E N O R T H CA R O LI N A TOWBIN INFINITI RELIABLE NISSANB R OO KLY N P AR K 702.252.8134 CH AR LO TT E OK LAH O MA CIT Y 505.897.6001 EAST CHARLOTTE NISSAN HUDIBURG NISSAN L.L.C.BROOKLYN PARK AUTOMOTIVE763.765.1562 L AS VE G AS 704.535.4012 405.632.0715 N EW YO R K UNITED NISSANB U RN SV IL LE 702.207.8032 ALB A NY CO RN EL IUS T ULS AWALSER NISSAN ARMORY NISSAN INC LAKE NORMAN INFINITI BOB MOORE NISSAN OF TULSA952.898.7306 N E W H A M P S HI R E 518.641.7672 704.237.8008 918.628.1495G O LDE N V ALLE Y M AN CH ES TE R AM HE RS T GR E EN SB O RO T ULS AJIM LUPIENT INFINITI TEAM NISSAN INC MIKE BARNEY NISSAN CROWN NISSAN JACKIE COOPER NISSAN 603.634.4442 716.833.6618 866.525.9859 888.211.6202763.513.4715 34 | Nissan & Infiniti Tech News
  • 34. O RE GO N W E ST C H ES T ER A US T IN RI CHA R DS ON ME CHA N ICSV IL LE INFINITI OF WEST CHESTER SOUTH POINT NISSAN COURTESY NISSAN SHEEHY NISSANEU G EN E 484.885.2275 512.444.4962 972.644.3942 804.417.1012LITHIA NISSAN OF EUGENE541.686.2218 WE XF O RD A US T IN RO U ND R O CK TOWN NORTH NISSAN MI DLO T H IAN WRIGHT AUTOMOTIVE GROUP ROUND ROCK NISSANG L AD ST O N E 724.935.4646 800.251.7278 512.244.8525 PENCE NISSANGLADSTONE NISSAN 804.527.0300503.723.2070 WI LLO W G RO V E B ED F OR D INFINITI OF WILLOW GROVE GRUBBS NISSAN SA N AN TO N IO ANCIRA NISSAN INC N EWPO R T NE WSG RE SH AM 215.784.9320 817.268.8905 NISSAN OF NEWPORT NEWS 800.508.1117GRESHAM NISSAN SUBARU INC Y OR K CO N RO E 757.369.6600503.661.5812 APPLE NISSAN INC. STREATER-SMITH NISSAN SA N AN TO N IO 717.755.9543 936.523.2142 GUNN INFINITI LTD N OR F OL KME D FO R D 210.824.6152 CHARLES BARKER NISSANLITHIA NISSAN CO R INT H 757.353.4878541.774.8416 R H O D E I S LA N D ORR NISSAN OF CORINTH SA N AN TO N IO WA RW ICK 866.360.4763 GUNN NISSAN LTD.PO RT LA N D R ICH MO ND INFINITI OF WARWICK CO R PUS CH RI ST I 210.494.4760 PEARSON INFINITIBEAVERTON INFINITI 401.824.2225503.526.5302 ED HICKS NISSAN LTD 804.527.0300 361.654.8561 SA N AN TO N IO W E ST W A R W I C K INGRAM PARK NISSANP EN N S Y L V A N IA NISSAN WEST WARWICK D AL L AS 210.681.6017 R OA NO KE 401.824.2364 CLAY COOLEY NISSAN FIRST TEAM NISSANAB IN G T ON 972.709.2000 T YL E R 540.362.4800FAULKNER NISSAN INC PELTIER NISSAN215.887.7940 S O U TH C A R O L IN A E L P AS O 903.534.8934 SPR IN G FI ELD CASA NISSAN INC C H AR L E ST O N 915.779.3261 SHEEHY NISSAN/SPRINGFIELDAR D MO R E BAKER INFINITI CHARLESTON WE AT HE R FO R D 703.922.2223INFINITI OF ARDMORE 843.852.4029 E L P AS O SOUTHWEST NISSAN610.896.4400 HOY-FOX INFINITI 817.565.1170 ST E RLI NG C H AR L E ST O N 915.772.3256AL LEN T OW N MORRIS MOTORS INC BROWNS STERLING NISSANROTHROCK MOTOR SALES INC UT A H 703.948.1100 843.571.2810 E ULE SS484.223.0596 GRUBBS INFINITI LTD MU R RA Y C O L U MB I A 817.359.4114 TIM DAHLE INFINITI V I EN N AB EA VE R F ALLS 800.848.4070BEAVER COUNTY NISSAN DICK SMITH NISSAN INFINITI OF TYSONS CORNER 800.922.6218 F O RT W OR T H 800.441.1291724.847.4800 NISSAN OF FORT WORTH MU R RA Y G RE EN V ILLE 817.696.4886 TIM DAHLE NISSANCO NCO R DV I LLE 801.269.6420 V IR GI NIA B EA CHCONCORDVILLE NISSAN CROWN NISSAN GREENVILLE G RA PEV IN E CHARLES BARKER INFINITI610.459.9135 864.254.7711 TEXAS NISSAN OF GRAPEVINE 757.818.9553 RI V ER DA LE 817.601.3563 KEN GARFF NISSAN RIVERDALCO NS H OH O CKEN G RE ER NISSAN OF GREER 801.627.6762 V IR GI NIA B EA CHCONICELLI NISSAN G RE EN V ILLE800.845.0999 864.868.6615 ORR NISSAN HALL NISSAN VIRGINIA BEACH SA LT LA KE CI TY 866.930.7644 903.454.1930 KEN GARFF NISSAN OF SALT LAKED OY LES T OW N H AR D EEV I L L EFRED BEANS NISSAN/DOYLEST HILTON HEAD NISSAN H OU S TO N 801.532.1443 WO OD B RI DG E888.842.8829 800.501.7408 BAKER NISSAN NORTH COWLES NISSAN 281.890.5656 V ER M O N T 866.830.1688ER I E H AR D EEV I L L EPORRECO NISSAN INC KEY NISSAN LLC H OU S TO N SO U TH B U RLI NG T ON814.860.8377 800.868.6615 BAKER NISSAN SOUTH FREEDOM NISSAN INC 802.846.0210 W A S HI N G TO N 713.349.6174EX T ON T EN N ES S EE B ELLE V UEEXTON NISSAN H OU S TO N V IR G I N IA CLEAR LAKE INFINITI NISSAN OF THE EASTSIDE610.594.7400 A LCOA 425.462.9074 713.589.4013 ALE XA ND R IA TWIN CITY NISSAN PASSPORT INFINITI/ALEXANDF AI RLE SS H ILLS 865.970.4132PERUZZI NISSAN H OU S TO N 703.461.1500 EV E RE T T215.949.6970 MCDAVID NISSAN MAGIC NISSAN OF EVERETT B AR T L ET T 713.941.0400 CH AN TI LLY WOLFCHASE NISSAN 425.347.5763F EA ST ER V I L L E INFINITI OF CHANTILLY 901.255.3880 H OU S TO N 703.322.3629COLONIAL NISSAN INC F IF E215.364.1800 MOSSY NISSAN CH AT T AN O OG A 281.589.5309 INFINITI/TACOMA AT FIFE KELLY INF. 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L E AG U E C I T Y 804.518.1888 206.623.1261570.546.4925 CLEAR LAKE NISSAN ME MP H I S 281.557.5450 DOBBS NISSAN CH RIS T IAN S BU R G SPO KA NEPH ILA DE LPH IA 901.759.6100 LE WIS V ILLE NEW RIVER NISSAN INC WENDLE NISSANCHAPMAN NISSAN LLC 540.382.9697 509.468.4047 BANKSTON NISSAN LEWISVILL215.492.8900 ME MP H I S 972.353.0270 F AI R F AX JIM KERAS NISSAN INC T AC O MAPIT T SB U RG H 901.373.2800 LO N GV IE W BROWNS FAIRFAX NISSAN BRUCE TITUS TACOMA NISSANCOCHRAN NISSAN/SOUTH HILL PATTERSON NISSAN/LONGVIEW 703.591.8009 253.473.6200412.343.3200 N AS HV IL LE 903.758.4135 DOWNTOWN NASHVILLE NISSAN F ALLS CH UR CHPIT T SB U RG H 615.248.5110 MC AL L E N KOONS NISSAN W IS C O N S INPITTSBURGH EAST NISSAN BERT OGDEN NISSAN 703.241.1000412.823.0101 S HE LBY V ILLE 956.631.6666 G RE EN B AY VICTORY NISSAN SOUTH F OR ES T GANDRUD NISSANPLE AS AN T HI LLS 931.488.3286 MC KIN NE Y LYNCHBURG NISSAN INC 800.242.2844BOWSER NISSAN NISSAN OF MCKINNEY 434.385.7733888.455.2377 T EX A S 866.742.0297 MA DI SO N A RLI NG T ON ME SQ U I T E HA MPT O N ZIMBRICK INFINITI MADISONSC RA NT O N DON DAVIS NISSAN INC POMOCO NISSAN OF HAMPTONTOM HESSER NISSAN TROPHY NISSAN 608.277.2277 817.588.5510 866.831.2622 757.838.6111570.558.2000 A US TI N PLA NO MA NA SS AS MI L W AU K E EST A T E CO LLE GE CREST INFINITI SHEEHY NISSAN OF MANASSAS ROSEN NISSAN INCNISSAN OF STATE COLLEGE AUSTIN INFINITI INC. 512.454.6338 972.516.2314 703.361.0377 800.333.0149814.238.2447 Nissan & Infiniti Tech News | 35
  • 35. Trust the Original, Use Genuine Nissan/Infiniti Parts.