This document provides information about electrical schematic symbols and connector locations for various harness assemblies on a Caterpillar engine. It includes: - Definitions of common electrical schematic symbols like fuses, switches, solenoids, and senders. - Tables showing connector locations and identifying information for connectors in different harness assemblies, including connector part numbers and wire identification codes. - Diagrams illustrating connector and splice locations for specific harnesses, with labels for sensors and components.

1. RENR9523-03
30
Page,
(Dimensions:
39
inches
28
inches)
1
2 200-L32 BK-14
AG-C4
111-7898
L-C12
3E-5179
C-C4
130-6795
9X-1123
Component
Part Number
Single Wire
Connector
Socket
Pin
AG-C3
130-6795
Pin or Socket
Number
Wire, Cable, or Harness Assembly Identification:
Includes Harness Identification Letters and Harness
Connector Serialization Codes Harness Connector Serialization Code: The "C" stands
for "Connector" and the number indicates which
connector in the harness. (C1, C2, C3, .....)
Part Number For
Connector Recepticle
Part Number for
Connector Plug
Harness Identification Letter(s):
(A, B, C, ..., AA, AB, AC, ...)
Plug
Ground
Connection
325-AG135 PK-14
Circuit Identification
Number Wire Color Wire Gauge
Harness identification code:
This example indicates wire
135 in harness "AG".
Receptacle
Pressure
Symbol
T
Temperature
Symbol
Level
Symbol
Flow
Symbol
Circuit Breaker
Symbol
Harness and Wire Symbols
1 1
2 2
Sure-Seal connector: Typical representation
of a Sure-Seal connector. The plug and receptacle
contain both pins and sockets.
Deutsch connector: Typical representation
of a Deutsch connector. The plug contains all
sockets and the receptacle contains all pins.
Symbols
Symbols and Definitions
Harness And Wire Electrical Schematic Symbols
Fuse
(5 Amps)
5A
Fuse: A component in an electrical circuit that will open the circuit if too much current flows
through it.
Switch (Normally Open): A switch that will close at a specified point (temp, press, etc.). The
circle indicates that the component has screw terminals and a wire can be disconnected from it.
Switch (Normally Closed): A switch that will open at a specified point (temp, press, etc.).
No circle indicates that the wire cannot be disconnected from the component.
Ground (Wired): This indicates that the component is connected to a grounded wire. The
grounded wire is fastened to the machine.
Ground (Case): This indicates that the component does not have a wire connected to ground.
It is grounded by being fastened to the machine.
Reed Switch: A switch whose contacts are controlled by a magnet. A magnet closes the
contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
Sender: A component that is used with a temperature or pressure gauge. The sender
measures the temperature or pressure. Its resistance changes to give an indication to
the gauge of the temperature or pressure.
T
Relay (Magnetic Switch): A relay is an electrical component that is activated by electricity.
It has a coil that makes an electromagnet when current flows through it. The
electromagnet can open or close the switch part of the relay.
Magnetic Latch Solenoid: A magnetic latch solenoid is an electrical component that is
activated by electricity and held latched by a permanent magnet. It has two coils (latch and unlatch)
that make electromagnet when current flows through them. It also has an internal switch that places
the latch coil circuit open at the time the coil latches.
Solenoid: A solenoid is an electrical component that is activated by electricity. It has a
coil that makes an electromagnet when current flows through it. The electromagnet
can open or close a valve or move a piece of metal that can do work.
RENR9523-03
August 2008
C15 On-highway Engine
Electrical System
MXS1-UP
NXS1-UP
RKS1-UP
©2008 Caterpillar
All Rights Reserved
Printed in U.S.A.
Harness 243-2321,248-4233
& 263-9001 Connector and
Splice Locations
Harness 243-1069 Connector and Splice Locations
FRONT VALVE COVER
CONNECTOR
A-C2
ENGINE COOLANT DIVERTER
SOLENOID VALVE
A-C14
ENGINE COOLANT
TEMPERATURE SENSOR
A-C11
INTAKE VALVE ACTUATION
PRESSURE SOLENOID VALVE
A-C15
INTAKE VALVE ACTUATION
PRESSURE SENSOR
A-C13
BOOST PRESSURE
SENSOR
A-C6
SECONDARY ENGINE
SPEED/TIMING
SENSOR (CAMSHAFT)
A-C7
PRIMARY ENGINE
SPEED/TIMING
SENSOR (CRANKSHAFT)
A-C8
FUEL
TEMPERATURE
SENSOR
A-C10
INTAKE MANIFOLD
AIR TEMPERATURE
SENSOR
A-C9
ENGINE OIL
PRESSURE SENSOR
A-C4
ATMOSPHERIC
PRESSURE SENSOR
A-C5
ENGINE CONTROL
MODULE
A-C1
REAR VALVE COVER
CONNECTOR
A-C3
FRONT VALVE COVER
CONNECTOR
A-C2
ENGINE COOLANT
DIVERTER SOLENOID
VALVE
A-C14
ENGINE COOLANT
TEMPERATURE SENSOR
A-C11
INTAKE VALVE ACTUATION
PRESSURE SOLENOID VALVE
A-C15
INTAKE VALVE ACTUATION
PRESSURE SENSOR
A-C13
BOOST
PRESSURE
SENSOR
A-C6
SECONDARY ENGINE
SPEED/TIMING
SENSOR (CAMSHAFT)
A-C7
PRIMARY ENGINE
SPEED/TIMING
SENSOR (CRANKSHAFT)
A-C8
FUEL
TEMPERATURE
SENSOR
A-C10
INTAKE MANIFOLD
AIR TEMPERATURE
SENSOR
A-C9
TIMING
CALIBRATION
(TC) PROBE
CONNECTOR
A-C12
ENGINE OIL
PRESSURE
SENSOR
A-C4
ATMOSPHERIC
PRESSURE
SENSOR
A-C5
ENGINE
CONTROL
MODULE
A-C1
REAR VALVE COVER
CONNECTOR
A-C3
Harness 321-4324
Connector and Splice
Locations
INJECTOR 1
J-C2
INJECTOR 2
J-C3
INJECTOR 3
J-C4
INJECTOR 4
J-C5
3&4 RETARDER
SOLENOID
J-C9
1&2 RETARDER
SOLENOID
J-C8
INTAKE VALVE
ACTUATOR 1
J-C6
INJECTOR 5
E-C2
INJECTOR 6
E-C3
5&6 RETARDER
SOLENOID
E-C8
INTAKE VALVE
ACTUATOR 3
E-C4
INTAKE VALVE
ACTUATOR 4
E-C5
INTAKE VALVE
ACTUATOR 5
E-C6
INTAKE VALVE
ACTUATOR 6
E-C7
INTAKE VALVE
ACTUATOR 2
J-C7
FRONT VALVE COVER
CONNECTOR
J-C1
REAR VALVE COVER
CONNECTOR
E-C1
A-S1
(G828 WH-18)
A-S2
(G829 GN-18)
A-S3
(G833 PK-18)
A-S4
(H807 YL-18)
A-S5
(K739 BN-16-HV)
A-S6
(K739 BU-16-HV)
A-S6
(K739 BU-16-HV)
A-S5
(K737 BR-16-HV)
A-S3
(G833 PK18)
A-S1
(G828 WH-18)
A-S4
(H807 YL-18)
A-S2
(G829 GN-18)
E-S3
(X988 PU-16-NW)
E-S1
(T860 OR-16-NW)
E-S2
(X989 OR-16-NW)
CYLINDER
NUMBER
LABEL
J-S3
(X987 BR-16-NW)
J-S4
(K739 BU-16-NW)
J-S1
(T858 GY-16-NW)
J-S2
(T859 WH-16-NW)
3
J-C9
CLR-GA WIRE NAME POS TERM/PLUG
GN-16-NW K738-J11 A 154-2389
BU-16-NW K739-J18 B 154-2389
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG 153-9693
1 SEAL 154-0877
1 CLIP 154-3769
J-C8
CLR-GA WIRE NAME POS TERM/PLUG
BR-16-NW K737-J10 A 154-2389
BU-16-NW K739-J17 B 154-2389
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG 153-9693
1 SEAL 154-0877
1 CLIP 154-3769
J-C6
CLR-GA WIRE NAME POS TERM/PLUG
BU-16-NW X983-J7 A 154-2389
BR-16-NW X987-J20 B 154-2389
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG 153-9693
1 SEAL 154-0877
1 CLIP 154-3769
J-C7
CLR-GA WIRE NAME POS TERM/PLUG
OR-16-NW X985-J8 A 154-2389
BR-16-NW X987-J19 B 154-2389
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG 153-9693
1 SEAL 154-0877
1 CLIP 154-3769
J-C1
CLR-GA WIRE NAME POS TERM/PLUG
PU-16-NW T957-J1 1 180-9339
YL-16-NW T958-J2 2 180-9339
BR-16-NW T959-J3 3 180-9339
BU-16-NW T960-J4 4 180-9339
GY-16-NW T858-J5 5 180-9339
WH-16-NW T859-J6 6 180-9339
BU-16-NW X983-J7 7 180-9339
OR-16-NW X985-J8 8 180-9339
BR-16-NW X987-J9 9 180-9339
BR-16-NW K737-J10 10 180-9339
GN-16-NW K738-J11 11 180-9339
BU-16-NW K739-J12 12 180-9339
ACCESSORY TABLE
QTY PART NAME P/N
1 RECEPTACLE AS. 290-8858
1 WEDGE 3E-5180
Connector Tables for Harness 321-4323
AIR SHUTOFF
A-C16
AIR SHUTOFF
SWITCH
A-C17
A-S7
(386 PK-18)
HARNESS 243-2321
ONLY
TIMING
CALIBRATION
(TC) PROBE
CONNECTOR
A-C12
Harness 321-4323
Connector and Splice
Locations
J-C2
CLR-GA WIRE NAME POS TERM/PLUG
PU-16-NW T957-J1 1
GY-16-NW T858-J13 2
ACCESSORY TABLE
QTY PART NAME P/N
1 CONNECTOR AS 7E-6513
220 TUBE 112-8144
J-C3
CLR-GA WIRE NAME POS TERM/PLUG
YL-16-NW T958-J2 1
GY-16-NW T858-J14 2
ACCESSORY TABLE
QTY PART NAME P/N
1 CONNECTOR AS 7E-6513
220 TUBE 112-8144
J-C4
CLR-GA WIRE NAME POS TERM/PLUG
BP-16-NW T959-J3 1
WH-16-NW T859-J16 2
ACCESSORY TABLE
QTY PART NAME P/N
1 CONNECTOR AS 7E-6513
220 TUBE 112-8144
J-C5
CLR-GA WIRE NAME POS TERM/PLUG
BU-16-NW T960-J4 1
WH-16-NW T859-J15 2
ACCESSORY TABLE
QTY PART NAME P/N
1 CONNECTOR AS 7E-6513
220 TUBE 112-8144
E-C2
CLR-GA WIRE NAME POS TERM/PLUG
GN-16-NW T961-E3 1
OR-16-NW T860-E17 2
ACCESSORY TABLE
QTY PART NAME P/N
1 CONNECTOR AS 7E-6513
220 TUBE 112-8144
E-C3
CLR-GA WIRE NAME POS TERM/PLUG
WH-16-NW T962-E4 1
OR-16-NW T860-E16 2
ACCESSORY TABLE
QTY PART NAME P/N
1 CONNECTOR AS 7E-6513
220 TUBE 112-8144
E-C4
CLR-GA WIRE NAME POS TERM/PLUG
YL-16-NW X986-E6 A 154-2389
OR-16-NW X989-E13 B 154-2389
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG 153-9693
1 SEAL 154-0877
1 CLIP 154-3769
E-C5
CLR-GA WIRE NAME POS TERM/PLUG
BR-16-NW X984-E7 A 154-2389
OR-16-NW X989-E12 B 154-2389
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG 153-9693
1 SEAL 154-0877
1 CLIP 154-3769
E-C6
CLR-GA WIRE NAME POS TERM/PLUG
WH-16-NW T856-E8 A 154-2389
PU-16-NW X988-E15 B 154-2389
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG 153-9693
1 SEAL 154-0877
1 CLIP 154-3769
E-C7
CLR-GA WIRE NAME POS TERM/PLUG
GN-16-NW T857-E9 A 154-2389
PU-16-NW X988-E14 B 154-2389
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG 153-9693
1 SEAL 154-0877
1 CLIP 154-3769
E-C8
CLR-GA WIRE NAME POS TERM/PLUG
BR-16-NW K737-E1 A 154-2389
BU-16-NW K739-E2 B 154-2389
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG 153-9693
1 SEAL 154-0877
1 CLIP 154-3769
E-C1
BR-16-NW K737-E1
BU-16-NW K739-E2
GN-16-NW T961-E3
WH-16-NW T962-E4
OR-16-NW T860-E5
YL-16-NW X986-E6
BR-16-NW X984-E7
WH-16-NW T856-E8
GN-16-NW T857-E9
OR-16-NW X989-E10
PU-16-NW X988-E11
CLR-GA WIRE NAME POS TERM/PLUG
1 180-9339
2 180-9339
3 180-9339
4 180-9339
5 180-9339
6 180-9339
7 180-9339
8 180-9339
9 180-9339
10 180-9339
11 180-9339
12 180-9339
ACCESSORY TABLE
QTY PART NAME P/N
1 RECEPTACLE AS. 290-8858
1 WEDGE 3E-5180
Connector Tables for Harness 321-4324
A-C1
(NOTE G)
CLR-GA WIRE NAME POS TERM/PLUG
GN-16 HV K738-A5 1 180-9340
2 -
GY-18 T852-A32 3 180-9340
4 -
BU-18 T855-A34 5 180-9340
6 8T-8737
7 -
BR-16 HV K737-A4 8 180-9340
9 -
10 8T-8737
11 8T-8737
12 8T-8737
BU-18 995-A12 13 180-9340
BU-16 HV K739-A3 14 180-9340
PK-18 R746-A20 15 180-9340
16 8T-8737
GN-18 G829-A2 17 180-9340
18 8T-8737
19 8T-8737
20 8T-8737
21 8T-8737
22 8T-8737
23 8T-8737
24 8T-8737
BK-18 E963-A27 25 180-9340
WH-18 G856-A8 26 180-9340
27 8T-8737
GY-18 994-A10 28 180-9340
29 8T-8737
PK-18 G833-A47 30 180-9340
31 8T-8737
32 8T-8737
33 8T-8737
34 8T-8737
WH-18 E964-A26 35 180-9340
YL-18 G857-A9 36 180-9340
37 8T-8737
38 8T-8737
39 8T-8737
40 8T-8737
41 8T-8737
42 8T-8737
43 8T-8737
44 8T-8737
45 -
YL-18 E966-A49 46 180-9340
BU-18 E965-A48 47 180-9340
48 8T-8737
49 8T-8737
50 8T-8737
51 8T-8737
52 -
PU-16 HV X988-A52 53 180-9340
BU-18 G827-A50 54 180-9340
55 8T-8737
BU-18 C967-A15 56 180-9340
GY-18 R747-A6 57 180-9340
58 8T-8737
59 8T-8737
60 8T-8737
OR-16 HV X989-A51 61 180-9340
YL-18 F421-A13 62 180-9340
63 8T-8737
64 8T-8737
65 8T-8737
66 8T-8737
67 8T-8737
68 8T-8737
69 -
70 8T-8737
71 8T-8737
WH-18 G828-A1 72 180-9340
73 8T-8737
OR-18 T853-A11 74 180-9340
75 8T-8737
76 -
BR-16 HV X987-A37 77 180-9340
78 8T-8737
YL-18 H807-A33 79 180-9340
BR-18 G826-A21 80 180-9340
81 8T-8737
82 8T-8737
83 8T-8737
84 8T-8737
85 8T-8737
86 8T-8737
87 8T-8737
88 8T-8737
89 8T-8737
90 8T-8737
91 8T-8737
92 8T-8737
93 8T-8737
94 8T-8737
95 8T-8737
96 8T-8737
97 8T-8737
98 8T-8737
OR-16 HV T860-A25 99 180-9340
GN-16 HV T857-A36 100 180-9340
YL-16 HV X986-A22 101 180-9340
WH-16 WH T856-A31 102 180-9340
BR-16 HV X984-A30 103 180-9340
GY-16 HV T858-A23 104 180-9340
WH-16 HV T962-A29 105 180-9340
BR-16 HV T959-A18 106 180-9340
GN-16 HV T961-A28 107 180-9340
BU-16 HV T960-A19 108 180-9340
109 8T-8737
110 8T-8737
BU-16 HV X983-A7 111 180-9340
112 -
OR-16 HV X985-A14 113 180-9340
114 -
WH-16 HV T859-A24 115 180-9340
PU-16 HV T957-A16 116 180-9340
117 -
YL-16 HV T958-A17 118 180-9340
119 -
120 8T-8737
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 227-4002
A-C2
CLR-GA WIRE NAME POS TERM/PLUG
PU-16 HV T957-A16 1 180-9340
YL-16 HV T958-A17 2 180-9340
BR-16 HV T959-A18 3 180-9340
BU-16 HV T960-A19 4 180-9340
GY-16 HV T858-A23 5 180-9340
WH-16 HV T859-A24 6 180-9340
BU-16 HV X983-A7 7 180-9340
OR-16 HV X985-A14 8 180-9340
BR-16 HV X987-A37 9 180-9340
BR-16 HV K737-A54 10 180-9340
GN-16 HV K738-A5 11 180-9340
BU-16 HV K739-A56 12 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2252
200mm PAINT/PRO 110-3202
1 WEDGE 155-2258
A-C3
CLR-GA WIRE NAME POS TERM/PLUG
BR-16 HV K737-A55 1 180-9340
BU-16 HV K739-A57 2 180-9340
GN-16 HV T961-A28 3 180-9340
WH-16 HV T962-A29 4 180-9340
OR-16 HV T860-A25 5 180-9340
YL-16 HV X986-A22 6 180-9340
BR-16 HV X984-A30 7 180-9340
WH-16 HV T856-A31 8 180-9340
GN-16 HV T857-A36 9 180-9340
OR-16 HV X989-A51 10 180-9340
PU-16 HV X988-A52 11 180-9340
12 8T-8737
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2252
200mm PAINT/PRO 110-3202
1 WEDGE 155-2258
A-C4
CLR-GA WIRE NAME POS TERM/PLUG
WH-18 G828-A38 1 180-9340
GN-18 G829-A43 2 180-9340
GY-18 994-A10 3 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 237-0227
200mm PAINT/PRO 110-3202
A-C5
CLR-GA WIRE NAME POS TERM/PLUG
WH-18 G828-A40 1 180-9340
GN-18 G829-A42 2 180-9340
GY-18 R747-A6 3 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 230-4013
200mm PAINT/PRO 110-3202
A-C6
CLR-GA WIRE NAME POS TERM/PLUG
WH-18 G828-A39 1 180-9340
GN-18 G829-A41 2 180-9340
PK-18 R746-A20 3 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 237-0227
200mm PAINT/PRO 110-3202
A-C7
CLR-GA WIRE NAME POS TERM/PLUG
BU-18 E965-A48 1 180-9340
YL-18 E966-A49 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C8
CLR-GA WIRE NAME POS TERM/PLUG
BK-18 E963-A27 1 180-9340
WH-18 E964-A26 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C9
CLR-GA WIRE NAME POS TERM/PLUG
BU-18 C967-A15 1 180-9340
PK-18 G833-A45 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C10
CLR-GA WIRE NAME POS TERM/PLUG
YL-18 F421-A13 1 180-9340
PK-18 G833-A46 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C11
CLR-GA WIRE NAME POS TERM/PLUG
BU-18 995-A12 1 180-9340
PK-18 G833-A44 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C12
CLR-GA WIRE NAME POS TERM/PLUG
WH-18 G856-A8 1 180-9340
YL-18 G857-A9 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
1 RECEPTACLE AS. 3E-3364
2 PLUG 8T-8737
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C13
CLR-GA WIRE NAME POS TERM/PLUG
BR-18 G826-A21 1 180-9340
BU-18 G827-A50 2 180-9340
OR-18 T853-A11 3 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 230-4013
200mm PAINT/PRO 110-3202
A-C14
CLR-GA WIRE NAME POS TERM/PLUG
BU-18 T855-A34 1 180-9340
YL-18 H807-A35 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C15
CLR-GA WIRE NAME POS TERM/PLUG
GY-18 T852-A32 1 180-9340
YL-18 H807-A53 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C2
CLR-GA WIRE NAME POS TERM/PLUG
PU-16-HV T957-A16 1 180-9340
YL-16-HV T958-A17 2 180-9340
BR-16-HV T959-A18 3 180-9340
BU-16-HV T960-A19 4 180-9340
GY-16-HV T858-A23 5 180-9340
WH-16-HV T859-A24 6 180-9340
BU-16-HV X983-A7 7 180-9340
OR-16-HV X985-A14 8 180-9340
BR-16-HV X987-A37 9 180-9340
BR-16-HV K737-A54 10 180-9340
GN-16-HV K738-A5 11 180-9340
BU-16-HV K739-A56 12 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2252
200mm PAINT/PRO 110-3202
1 WEDGE 155-2258
A-C3
CLR-GA WIRE NAME POS TERM/PLUG
BR-16-HV K737-A55 1 180-9340
BU-16-HV K739-A57 2 180-9340
GN-16-HV T961-A28 3 180-9340
WH-16-HV T962-A29 4 180-9340
OR-16-HV T860-A25 5 180-9340
YL-16-HV X986-A22 6 180-9340
BR-16-HV X984-A30 7 180-9340
WH-16-HV T856-A31 8 180-9340
GN-16-HV T857-A36 9 180-9340
OR-16-HV X989-A51 10 180-9340
PU-16-HV X988-A52 11 180-9340
12 8T-8737
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2252
200mm PAINT/PRO 110-3202
1 WEDGE 155-2258
A-C4
CLR-GA WIRE NAME POS TERM/PLUG
WH-18 G828-A38 A 180-9339
GN-18 G829-A43 B 180-9339
GY-18 994-A10 C 180-9339
ACCESSORY TABLE
QTY PART NAME P/N
1 RECEPTACLE AS. 3E-3370
200mm PAINT/PRO 110-3202
1 WEDGE 3E-3371
A-C5
CLR-GA WIRE NAME POS TERM/PLUG
WH-18 G828-A40 A 180-9339
GN-18 G829-A42 B 180-9339
GY-18 R747-A6 C 180-9339
ACCESSORY TABLE
QTY PART NAME P/N
1 RECEPTACLE AS. 3E-3370
200mm PAINT/PRO 110-3202
1 WEDGE 3E-3371
A-C6
CLR-GA WIRE NAME POS TERM/PLUG
WH-18 G828-A39 A 180-9340
GN-18 G829-A41 B 180-9340
PK-18 R746-A20 C 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2267
200mm PAINT/PRO 110-3202
1 WEDGE 155-2276
A-C7
CLR-GA WIRE NAME POS TERM/PLUG
BU-18 E965-A48 1 180-9340
YL-18 E966-A49 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C8
CLR-GA WIRE NAME POS TERM/PLUG
BK-18 E963-A27 1 180-9340
WH-18 E964-A26 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C9
CLR-GA WIRE NAME POS TERM/PLUG
BU-18 C967-A15 1 180-9340
PK-18 G833-A45 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C10
CLR-GA WIRE NAME POS TERM/PLUG
YL-18 F421-A13 1 180-9340
PK-18 G833-A46 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C11
CLR-GA WIRE NAME POS TERM/PLUG
BU-18 995-A12 1 180-9340
PK-18 G833-A44 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C12
CLR-GA WIRE NAME POS TERM/PLUG
WH-18 G856-A8 1 180-9340
YL-18 G857-A9 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
1 RECEPTACLE AS. 3E-3364
2 PLUG 8T-8737
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C13
CLR-GA WIRE NAME POS TERM/PLUG
BR-18 G826-A21 A 180-9339
BU-18 G827-A50 B 180-9339
OR-18 T853-A11 C 180-9339
ACCESSORY TABLE
QTY PART NAME P/N
1 RECEPTACLE AS. 3E-3370
1 WEDGE 3E-3371
200mm PAINT/PRO 110-3202
A-C14
CLR-GA WIRE NAME POS TERM/PLUG
BU-18 T855-A34 1 180-9340
YL-18 H807-A35 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C15
CLR-GA WIRE NAME POS TERM/PLUG
GY-18 T852-A32 1 180-9340
YL-18 H807-A53 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C1
CLR-GA WIRE NAME POS TERM/PLUG
GN-16-HV K738-A5 1 180-9340
2 -
GY-18 T852-A32 3 180-9340
4 -
BU-18 T855-A34 5 180-9340
6 8T-8737
7 -
BR-16-HV K737-A4 8 180-9340
9 -
10 8T-8737
11 8T-8737
12 8T-8737
BU-18 995-A12 13 180-9340
BU-16-HV K739-A3 14 180-9340
PK-18 R746-A20 15 180-9340
16 8T-8737
GN-18 G829-A2 17 180-9340
18 8T-8737
19 8T-8737
20 8T-8737
21 8T-8737
22 8T-8737
23 8T-8737
24 8T-8737
BK-18 E963-A27 25 180-9340
WH-18 G856-A8 26 180-9340
27 8T-8737
GY-18 994-A10 28 180-9340
29 8T-8737
PK-18 G833-A47 30 180-9340
31 8T-8737
32 8T-8737
33 8T-8737
34 8T-8737
WH-18 E964-A26 35 180-9340
YL-18 G857-A9 36 180-9340
37 8T-8737
38 8T-8737
39 8T-8737
40 8T-8737
41 8T-8737
42 8T-8737
43 8T-8737
44 8T-8737
45 -
YL-18 E966-A49 46 180-9340
BU-18 E965-A48 47 180-9340
48 8T-8737
49 8T-8737
50 8T-8737
51 8T-8737
52 -
PU-16-HV X988-A52 53 180-9340
BU-18 G827-A50 54 180-9340
55 8T-8737
BU-18 C967-A15 56 180-9340
GY-18 R747-A6 57 180-9340
58 8T-8737
59 8T-8737
60 8T-8737
OR-16-HV X989-A51 61 180-9340
YL-18 F421-A13 62 180-9340
63 8T-8737
64 8T-8737
65 8T-8737
66 8T-8737
67 8T-8737
68 8T-8737
69 -
70 8T-8737
71 8T-8737
WH-18 G828-A1 72 180-9340
73 8T-8737
OR-18 T853-A11 74 180-9340
75 8T-8737
76 -
BR-16-HV X987-A37 77 180-9340
78 8T-8737
YL-18 H807-A33 79 180-9340
BR-18 G826-A21 80 180-9340
81 8T-8737
82 8T-8737
83 8T-8737
84 8T-8737
85 8T-8737
86 8T-8737
87 8T-8737
88 8T-8737
89 8T-8737
90 8T-8737
91 8T-8737
92 8T-8737
93 8T-8737
94 8T-8737
95 8T-8737
96 8T-8737
97 8T-8737
98 8T-8737
OR-16-HV T860-A25 99 180-9340
GN-16-HV T857-A36 100 180-9340
YL-16-HV X986-A22 101 180-9340
WH-16-HV T856-A31 102 180-9340
BR-16-HV X984-A30 103 180-9340
GY-16-HV T858-A23 104 180-9340
WH-16-HV T962-A29 105 180-9340
BR-16-HV T959-A18 106 180-9340
GN-16-HV T961-A28 107 180-9340
BU-16-HV T960-A19 108 180-9340
109 8T-8737
110 8T-8737
BU-16-HV X983-A7 111 180-9340
112 -
OR-16-HV X985-A14 113 180-9340
114 -
WH-16-HV T859-A24 115 180-9340
PU-16-HV T957-A16 116 180-9340
117 -
YL-16-HV T958-A17 118 180-9340
119 -
120 8T-8737
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 227-4002
200mm PAINT/PRO 110-3202
*PLUG AS. *230-4011
*PLUG AS. *230-4011
*1 *PLUG AS. *230-4011
*1
*1
PK-18 386-A61
A-C16
(SPECIFIC TO HARNESS
243-2321 ONLY)
CLR-GA WIRE NAME POS TERM/PLUG
PK-18 386-A59 1 180-9340
BU-18-HV K739-A58 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
A-C17
(SPECIFIC TO HARNESS
243-2321 ONLY)
CLR-GA WIRE NAME POS TERM/PLUG
PK-18 386-A60 1 180-9339
2 8T-8737
ACCESSORY TABLE
QTY PART NAME P/N
1 RECEPTACLE AS. 3E-3364
200mm PAINT/PRO 110-3202
1 WEDGE 3E-3365
A-C9
CLR-GA WIRE NAME POS TERM/PLUG
BU-18 C967-A15 1 180-9340
PK-18 G833-A45 2 180-9340
ACCESSORY TABLE
QTY PART NAME P/N
1 PLUG AS. 155-2269
200mm PAINT/PRO 110-3202
1 WEDGE 155-2261
Harness 243-2321,248-4233 & 263-9001 Connector and Splice Locations

2. RENR9523-03
30
Page,
(Dimensions:
39
inches
x
28
inches)
SYMBOL DESCRIPTION
BLADE, SPADE, RING OR SCREW
TERMINAL
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ELECTRICAL CONNECTION TO
MACHINE STRUCTURE
INTERNAL ELECTRICAL CONNECTION
TO SURFACE OF COMPONENT
CONNECTOR
ATCH WIRE, CABLE, COMPONENT
CIRCUIT CONNECTED
SPLICE
CIRCUIT GROUPING DESIGNATION
H#
ABBREV
RD
WH
OR
YL
PK
BK
GY
PU
BR
GN
BU
COLOR
RED
WHITE
ORANGE
YELLOW
PINK
BLACK
GRAY
PURPLE
BROWN
GREEN
BLUE
COLOR ABBREVIATIONS
PID-FMI Description
Flash
Codes
PID-FMI Description
Flash
Codes
N/A No Diagnostic Codes Detected 55
0111-04 Coolant Level voltage low 12
0001-05 Cylinder #1 Injector current low 72
0111-11 Very Low Coolant Level 62
0001-06 Cylinder #1 Injector current high 72
0111-14 Low Coolant Level Warning
0002-05 Cylinder #2 Injector current low 72
0121-05 Low/High Retarder current low 14
0002-06 Cylinder #2 Injector current high 72
0121-06 Low/High Retarder current high 14
0003-05 Cylinder #3 Injector current low 73
0122-05 Med/High Retarder current low 14
0003-06 Cylinder #3 Injector current high 73
0122-06 Med/High Retarder current high 14
0004-05 Cylinder #4 Injector current low 73
0166-14 Rated Engine Power Special Instructions
0004-06 Cylinder #4 Injector current high 73
0168-01 Low ECM Battery Power 17
0005-05 Cylinder #5 Injector current low 74
0171-03 Ambient Air Temperature voltage high
0005-06 Cylinder #5 Injector current high 74
0171-04 Ambient Air Temperature voltage low
0006-05 Cylinder #6 Injector current low 74
0171-11 Ambient Air Temperature Data Lost
0006-06 Cylinder #6 Injector current high 74
0174-00 High Fuel Temperature Warning 65
0022-11 Primary to Secondary Engine Speed Calibration 42
0174-03 Fuel Temperature voltage high 13
0022-13 Engine Speed Signal Calibration Not Performed 42
0174-04 Fuel Temperature voltage low 13
0030-08 PTO Throttle signal invalid 29
0190-00 Engine Overspeed Warning 35
0030-13 PTO Throttle out of calibration 29
0190-08 Primary Engine Speed Loss of Signal 34
0041-03 8 Volt Supply voltage high 21
0191-07 Transmission Not Responding 68
0041-04 8 Volt Supply voltage low 21
0224-11 Theft Deterrent Active 00
0043-02 Key Switch Fault 71
0224-14 Theft Deterrent Active with Engine Cranking 00
0054-05 Auxiliary Output #06 current low 66
0231-02 J1939 Data Incorrect 58
0054-06 Auxiliary Output #06 current high 66
0231-12 J1939 Device Not Responding
0055-05 Auxiliary Output #07 current low 67
0232-03 5 Volt Supply voltage high 21
0055-06 Auxiliary Output #07 current high 67
0232-04 5 Volt Supply voltage low 21
0064-08 Secondary Engine Speed loss of signal 34
0246-11 Brake Pedal Switch #1 Fault
0071-00 Idle Shutdown Override 01
0247-11 Brake Pedal Switch #2 Fault
0071-01 Idle Shutdown 47
0252-11 Engine Software Incorrect 59
0071-14 PTO Shutdown 47
0253-02 Check Customer or System Parameters 56
Diagnostic Code Listing
0084-01 Vehicle Speed loss of signal 31
0084-02 Vehicle Speed signal invalid 36
0084-08 Vehicle Speed signal out of range 36
0084-10 Vehicle Speed signal rate of change 36
0084-14 Quick Stop Occurrence
0091-08 Throttle Position Invalid 32
0091-13 Throttle Position out of calibration 28
0100-01 Low Oil Pressure Warning 46
0100-03 Oil Pressure voltage high 24
0100-04 Oil Pressure voltage low 24
0100-11 Very Low Oil Pressure 46
0102-03 Boost Pressure voltage high 25
0102-04 Boost Pressure voltage low 25
0105-00 High Intake Manifold Air Temperature Warning 64
0105-03 Intake Manifold Air Temperature voltage high 38
0105-04 Intake Manifold Air Temperature voltage low 38
0105-11 Very High Intake Manifold Air Temperature 64
0108-03 Barometric Pressure voltage high 26
0108-04 Barometric Pressure voltage low 26
0110-00 High Coolant Temperature Warning 61
0110-03 Coolant Temperature voltage high 27
0110-04 Coolant Temperature voltage low 27
0110-11 Very High Coolant Temperature 61
0111-01 Low Coolant Level Warning 62
0111-02 Coolant Level signal invalid 12
0111-03 Coolant Level voltage high 12
PID-FMI Description
Flash
Codes
0084-00 Vehicle Overspeed Warning 41 0283-05
Intake Valve Actuation System Oil Pressure
Solenoid current low 97
0283-06
Intake Valve Actuation System Oil Pressure
Solenoid current high 97
0283-07 Intake Valve Actuation Oil Pressure not responding 91
0284-05 Engine Coolant Diverter current low 98
0284-06 Engine Coolant Diverter current high 98
0285-05 Intake Valve Actuator #1 current low 92
0285-06 Intake Valve Actuator #1 current high 92
0285-07 Intake Valve Actuator #1 not responding 92
0286-05 Intake Valve Actuator #2 current low 92
0286-06 Intake Valve Actuator #2 current high 92
0286-07 Intake Valve Actuator #2 not responding 92
0287-05 Intake Valve Actuator #3 current low 93
0287-06 Intake Valve Actuator #3 current high 93
0287-07 Intake Valve Actuator #3 not responding 93
0288-05 Intake Valve Actuator #4 current low 93
0288-06 Intake Valve Actuator #4 current high 93
0288-07 Intake Valve Actuator #4 not responding 93
0289-05 Intake Valve Actuator #5 current low 94
0289-06 Intake Valve Actuator #5 current high 94
0289-07 Intake Valve Actuator #5 not responding 94
0290-05 Intake Valve Actuator #6 current low 94
0290-06 Intake Valve Actuator #6 current high 94
0290-07 Intake Valve Actuator #6 not responding 94
0385-01 Low Intake Valve Actuation System Oil Pressure
0385-03 Intake Valve Actuation System Oil Pressure voltage high 95
0385-04 Intake Valve Actuation System Oil Pressure voltage low 95
0253-11 Check Transmission Customer Parameters 56
PID-FMI Description
Flash
Codes
Related Electrical Service Manuals
Form Number
RENR5088
SENR9692
Title
Troubleshooting
Systems Operation / Testing and Adjusting
SENSOR / ACTUATOR SUPPLY
(+) BATTERY SWITCHED
SIGNAL PLUS TO ECM
SIGNAL MINUS TO ECM
(+) BATTERY
(-) BATTERY / SENSOR RETURN
STARTING CIRCUIT
CAT DATA LINK
CONTROL PLUS FROM ECM
CONTROL MINUS FROM ECM
HIGHWAYS
NOTE X
NOTE X
NOTE X
NOTE X
TWISTED PAIRS
P1
1607689
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
G809-GN
L901-GY
C977-BU
G879-OR
INPUT SENSOR RETURN #1(NOTE L)
CLUTCH PEDAL POSITION SWITCH
+5V
INPUT #12
INPUT #11
INPUT #7
ENGINE COOLANT LEVEL NORMAL
ENGINE COOLANT LEVEL LOW
VEHICLE SPEED IN POSITIVE(NOTE F)
VEHICLE SPEED IN NEGATIVE
INPUT #8
AP SENSOR/SWITCH RETURN(NOTE L)
+8V
ACCELERATOR PEDAL POSITION
OUTPUT #5
G881-BU
INPUT #15 POSITIVE
G834-PU INPUT #15 NEGATIVE
G835-OR
E971-GN
E793-BU
E794-YL
A249-BK
K990-GN
K900-YL
J906-BR
H795-PK
C985-BU
C986-BR
G837-YL
659-PK
L994-YL
G880-PK
K998-BU
RETARDER SOLENOID LOW/HI SWITCH
INPUT #5
INPUT #13
RETARDER SOLENOID MED/HI SWITCH
E716-GY
G842-GY
G882-WH
E717-GN
INPUT #6
G843-OR
993-BR
F713-OR
CRUISE CONTROL ON/OFF SWITCH
INPUT #3
INPUT #4
C975-WH
K982-YL
G841-GN
SET
RESUME
INPUT #1
INPUT #2
SERVICE BRAKE PEDAL POSITION SWITCH
OUTPUT #8
C978-BR
C979-OR
K999-GN
K980-PK
C992-PU
G840-PU
G808-BU
G845-PU
J1587 DATA LINK NEGATIVE
J1587 DATA LINK POSITIVE
J1939 DATA LINK SHIELD
J1939 DATA LINK NEGATIVE
J1939 DATA LINK POSITIVE
IGNITION KEY SWITCH
ENGINE CONTROL MODULE (ECM) J1
UNSWITCHED +BATTERY
UNSWITCHED +BATTERY
-BATTERY
-BATTERY
OUTPUT #6
OUTPUT #7
101-RD
101-RD
UNSWITCHED +BATTERY
101-RD
229-BK
-BATTERY
229-BK
229-BK
G838-BR
G839-BU
TACHOMETER POSITIVE
TACHOMETER NEGATIVE
G844-PK
C983-WH
C984-YL
450-YL
451-BR
C974-PU
C973-GN
SPEEDOMETER POSITIVE
SPEEDOMETER NEGATIVE
INPUT SENSOR RETURN #2
INPUT #14
WARNING LAMP
CHECK ENGINE LAMP
OUTPUT #1
OUTPUT #9
OUTPUT #2
OUTPUT #3
OUTPUT #4
E718-PK
E991-GY
G836-WH
INPUT #9
INPUT #10
G933-YL
TYPICAL VEHICLE HARNESS WIRING DIAGRAM
G809-GN
COOLING FAN
SOLENOID
ACCELERATOR PEDAL POSITION SENSOR
BK
RD
WH
J403 P403
ACCELERATOR PEDAL SENSOR/SWITCH SENSOR RETURN
+8 V
ACCELERATOR PEDAL POSITION
B
A
C
C977-BU
H795-PK
H795-PK
H795-PK
A/C HIGH PRESSURE SWITCH N/C
E971-GN
450-YL
451-BR
SIGNAL+
SIGNAL-
TACHOMETER
E793-BU
E794-YL
10A
10A
10A
14 AWG GXL
14 AWG GXL
14 AWG GXL
14 AWG GXL
PASSIVE MAGNETIC
VEHICLE SPEED
SENSOR
G808-BU
G809-GN
NOTE C
NOTE F
H795-PK
H795-PK
SET/RESUME SWITCH
ENGINE
BLOCK
E971-GN
E793-BU
E794-YL
A249-BK
K990-GN
K900-YL
A249-BK
K990-GN
K900-YL
J906-BR
COMPONENTS WITHIN THIS AREA ARE CATERPILLAR PROVIDED/OEM INSTALLED
CLUTCH PEDAL POSITION SWITCH N/C
SERVICE BRAKE PEDAL POSITION SWITCH N/C
(PEDAL RELEASED POSITION)
CRUISE CONTROL ON/OFF SWITCH
RETARDER SOLENOID ON/OFF SWITCH
CHECK ENGINE LAMP
TO +BATTERY
TO CHASSIS
J1939 DATALINK
WARNING LAMP
TO VEHICLE
COMPONENTS
+BATTERY
-BATTERY NOTE Z
J1587 -
J1587 +
J1939 -
J1939 SHIELD
J1939 +
1
2
J
H795-PK
A
B
H
9 PIN CAB
CONNECTOR
G
F
E
D
C
H795-PK
C985-BU
C986-BR
G837-YL
659-PK
L994-YL
CIRCUITS WITHIN THIS AREA ARE RECOMMENDATIONS
START
ON
OFF
E716-GY
E717-GN
STARTER
MOTOR
ARC
SUPPRESSOR
BATTERY 2
C975-WH
N/O
RELAY
H795-PK
C985-BU
C986-BR
C978-BR
C979-OR
C977-BU
C992-PU
C975-WH
C978-BR
C979-OR
C992-PU
KEY SWITCH
659-PK
GROUND
L994-YL
ALTERNATOR
-12V +
-12V + +
12V
-
BATTERY 3 BATTERY 1
G808-BU
101-RD
101-RD
14 AWG GXL 101-RD
229-BK
14 AWG GXL 229-BK
229-BK
450-YL
451-BR
C974-PU
C973-GN
C974-PU
C973-GN
SIGNAL+
SIGNAL-
SPEEDOMETER
(PEDAL RELEASED POSITION)
HI
MED
LO
HI
MED
LO
NOTES B AND E
NOTE D
NOTE D
NOTES B AND E
TWISTED
PAIRS
HARNESS 243-2321 & 248-4233 ONLY
G833-A47 PK-18
G833-A44 PK-18
G833-A45 PK-18
G833-A46 PK-18
F421-A13 YL-18
C967-A15 BU-18
995-A12 BU-18
G833-A44 PK-18
G833-A46 PK-18
995-A12 BU-18
C967-A15 BU-18
F421-A13 YL-18
G833-A47 PK-18
995-A12 BU-18
F421-A13 YL-18
C967-A15 BU-18
E965-A48 BU-18
E966-A49 YL-18
E963-A27 BK-18
E964-A26 WH-18
G828-A39 WH-18
G828-A1 WH-18
R746-A20 PK-18
R747-A6 GY-18
G856-A8 WH-18
G857-A9 YL-18
G856-A8 WH-18
G857-A9 YL-18
R747-A6 GY-18
994-A10 GY-18
994-A10 GY-18
G829-A41 GN-18
R746-A20 PK-18
G828-A40 WH-18
G829-A42 GN-18
R747-A6 GY-18
994-A10 GY-18
G829-A2 GN-18
G829-A2 GN-18
R746-A20 PK-18
G828-A1 WH-18
E964-A26 WH-18
E963-A27 BK-18
E966-A49 YL-18
E965-A48 BU-18
E965-A48 BU-18
E966-A49 YL-18
E964-A26 WH-18
E963-A27 BK-18
G828-A38 WH-18
G828-A39 WH-18
G829-A41 GN-18
G829-A42 GN-18
G833-A45 PK-18
G828-A38 WH-18
G828-A40 WH-18
G829-A43 GN-18
G829-A43 GN-18
INJECTOR 5
INJECTOR 6
T957-A16 PU-16-HV
T958-A17 YL-16-HV
K737-A54 BR-16-HV
K737-A55 BR-16-HV
K737-A55 BR-16-HV
K737-A4 BR-16-HV
K737-A4 BR-16-HV
T859-A24 WH-16-HV
T959-A18 BR-16-HV
T959-A18 BR-16
K738-A5 GN-16-HV
K739-A56 BU-16-HV
X987-A37 BR-16-HV
X987-A37 BR-16
T857-A36 GN-16-HV
X984-A30 BR-16-HV
X984-A30 BR-16
K738-A5 GN-16-HV
K738-A5 GN-16
T962-A29 WH-16-HV
T961-A28 GN-16-HV
T961-A28 GN-16
X988-A52 PU-16-HV
T857-A36 GN-16-HV
T857-A36 GN-16
T959-A18 BR-16-HV
K739-A56 BU-16-HV
K739-A57 BU-16-HV
K739-A57 BU-16-HV
K739-A3 BU-16-HV
K739-A3 BU-16
X987-A37 BR-16-HV
X983-A7 BU-16-HV
X983-A7 BU-16
T960-A19 BU-16-HV
T957-A16 PU-16-HV
T957-A16 PU-16
T856-A31 WH-16-HV
X988-A52 PU-16-HV
T859-A24 WH-16-HV
X989-A51 OR-16-HV
X988-A52 PU-16
T858-A23 GY-16-HV
T958-A17 YL-16-HV
T958-A17 YL-16
X986-A22 YL-16-HV
X986-A22 YL-16
X983-A7 BU-16-HV
X986-A22 YL-16-HV
T859-A24 WH-16
X989-A51 OR-16-HV
T856-A31 WH-16-HV
T856-A31 WH-16
T858-A23 GY-16-HV
T858-A23 GY-16
T961-A28 GN-16-HV
T960-A19 BU-16-HV
T960-A19 BU-16
K737-A54 BR-16-HV
X985-A14 OR-16-HV
X985-A14 OR-16
X984-A30 BR-16-HV
T860-A25 OR-16-HV
T860-A25 OR-16
T860-A25 OR-16-HV
K737-E1 BR-16-NW
T857-E9 GN-16-NW
T962-E4 WH-16-NW
X988-E11 PU-16-NW
K739-E2 BU-16-NW
T856-E8 WH-16-NW
X986-E6 YL-16-NW
X989-E10 OR-16-NW
T961-E3 GN-16-NW
X984-E7 BR-16-NW
T860-E5 OR-16-NW
K737-E1 BR-16-NW
T857-E9 GN-16-NW
T962-E4 WH-16-NW
X988-E11 PU-16-NW
K739-E2 BU-16-NW
K737-E1 BR-16-NW
K739-E2 BU-16-NW
T856-E8 WH-16-NW
X986-E6 YL-16-NW
X989-E10 OR-16-NW
T961-E3 GN-16-NW
X984-E7 BR-16-NW
T860-E5 OR-16-NW
X988-E14 PU-16-NW
X988-E15 PU-16-NW
X989-E13 OR-16-NW
X989-E12 OR-16-NW
T860-E16 OR-16-NW
T860-E17 OR-16-NW
T857-E9 GN-16-NW
T962-E4 WH-16-NW
X988-E14 PU-16-NW
X988-E15 PU-16-NW
T856-E8 WH-16-NW
X986-E6 YL-16-NW
X989-E13 OR-16-NW
T961-E3 GN-16-NW
X989-E12 OR-16-NW
X984-E7 BR-16-NW
T860-E16 OR-16-NW
T860-E17 OR-16-NW
T962-A29 WH-16-HV
T962-A29 WH-16
H807-A33 YL-18
T852-A32 GY-18
T852-A32 GY-18
T852-A32 GY-18
G827-A50 BU-18
G827-A50 BU-18
X989-A51 OR-16
G826-A21 BR-18
G826-A21 BR-18
T853-A11 OR-18
T853-A11 OR-18
H807-A33 YL-18
X985-A14 OR-16-HV
T957-J1 PU-16-NW
T958-J2 YL-16-NW
T859-J6 WH-16-NW
K738-J11 GN-16-NW
K739-J12 BU-16-NW
T959-J3 BR-16-NW
X987-J9 BR-16-NW
T960-J4 BU-16-NW
T858-J5 GY-16-NW
X983-J7 BU-16-NW
K737-J10 BR-16-NW
X985-J8 OR-16-NW
T957-J1 PU-16-NW
T958-J2 YL-16-NW
T859-J6 WH-16-NW
K738-J11 GN-16-NW
K739-J12 BU-16-NW
T959-J3 BR-16-NW
X987-J9 BR-16-NW
T960-J4 BU-16-NW
T858-J5 GY-16-NW
X983-J7 BU-16-NW
K737-J10 BR-16-NW
X985-J8 OR-16-NW
T859-J15 WH-16-NW
K739-J18 BU-16-NW
K739-J17 BU-16-NW
X987-J20 BR-16-NW
X987-J19 BR-16-NW
T858-J13 GY-16-NW
T859-J16 WH-16-NW
T858-J14 GY-16-NW
K738-J11 GN-16-NW
K739-J18 BU-16-NW
K739-J17 BU-16-NW
K737-J10 BR-16-NW
T957-J1 PU-16-NW
T958-J2 YL-16-NW
T859-J15 WH-16-NW
T959-J3 BR-16-NW
X987-J19 BR-16-NW
X987-J20 BR-16-NW
T960-J4 BU-16-NW
T858-J13 GY-16-NW
T859-J16 WH-16-NW
T858-J14 GY-16-NW
X983-J7 BU-16-NW
X985-J8 OR-16-NW
TIMING CALIBRATION(TC)
PROBE CONNECTOR
H807-A35 YL-18
H807-A35 YL-18
H807-A53 YL-18
H807-A53 YL-18
T855-A34 BU-18
T855-A34 BU-18
T855-A34 BU-18
1
2
A-C10
230-4011
1
2
A-C9
2304011
A-C12
1552269
1
2
A-C11
1552269
A-C1
2274002
J2
A-C8
1552269
1
2
A-C7
1552269
A-S3
A-S1
A-S2
SIGNAL
GROUND
1
2
1
2
A-C6
2370227
A
B
C
1
2
3
4
5
6
7
8
9
10
11
12
A-C2
1552252
1
2
3
4
5
6
7
8
9
10
11
12
J-C1
290-8858
E-C2
7E6513
E-C3
7E6513
E-C6
1539693
E-C7
1539693
PRESSURE SENSOR SUPPLY +5V
PRESSURE SENSOR RETURN
RETARDER COMMON
ATMOSPHERIC PRESSURE
TEMPERATURE SENSOR COMMON
ENGINE OIL PRESSURE SENSOR
ENGINE COOLANT TEMPERATURE
FUEL TEMPERATURE
INTAKE MANIFOLD AIR TEMPERATURE
INJECTOR 1&2 SUPPLY
BOOST PRESSURE SENSOR
INTAKE VALVE ACTUATOR 6 RETURN
PRIMARY ENGINE SPEED/TIMING+
PRIMARY ENGINE SPEED/TIMING-
SECONDARY ENGINE SPEED/TIMING+
SECONDARY ENGINE SPEED/TIMING-
RETARDER SOLENOID MED/HI
INTAKE VALVE ACTUATOR 1 RETURN
INTAKE VALVE ACTUATOR 2 RETURN
COOLANT DIVERTER SOLENOID VALVE
INJECTOR 2 RETURN
INJECTOR 3&4 SUPPLY
INJECTOR 5&6 SUPPLY
INTAKE VALVE ACTUATOR 1&2
IVA OIL PRESSURE SENSOR +5V
INTAKE VALVE ACTUATOR 5 RETURN
IVA OIL SENSOR COMMON
INJECTOR 3 RETURN
INTAKE VALVE ACTUATOR OIL VALVE
INTAKE VALVE ACTUATOR 3&4
INTAKE VALVE ACTUATOR 5&6
CDV & IVA OIL VALVE RETURN
INJECTOR 4 RETURN
RETARDER SOLENOID LOW/HI
INJECTOR 1 RETURN
INTAKE VALVE ACTUATION OIL PRESSURE
TIMING CALIBRATION PROBE(+)
TIMING CALIBRATION PROBE(-)
INTAKE VALVE ACTUATOR 3 RETURN
INTAKE VALVE ACTUATOR 4 RETURN
INJECTOR 6 RETURN
INJECTOR 5 RETURN
J-S1
J-S2
J-S3
J-S4
E-S1
E-S2
E-S3
A-S5
A-S6
1
2
A-C15
1552269
1
2
3
4
5
6
7
8
9
10
11
12
E-C1
REAR VALVE COVER
CONNECTOR
FRONT VALVE COVER
CONNECTOR
2908858
1
2
3
4
5
6
7
8
9
10
11
12
A-C3
1552252
A-S4
A-C4
2370227
A
B
C
A
B
E-C5
1539693
A
B
INTAKE VALVE ACTUATOR 3
INTAKE VALVE ACTUATOR 4
INTAKE VALVE ACTUATOR 1
INTAKE VALVE ACTUATOR 6
INTAKE VALVE ACTUATOR 5
INTAKE VALVE ACTUATOR 2
E-C4
1539693
A
B
A
B
INJECTOR 1
J-C2
7E6513
J-C6
1539693
A
B
INJECTOR 2
J-C3
7E6513
INJECTOR 3
J-C4
7E6513
INJECTOR 4
J-C5
1
2
7E6513
J-C7
1539693
A
B
A-C5
2304013
A
B
C
A-C14
1552269
G826-A21 BR-18
G827-A50 BU-18
T853-A11 OR-18
A-C13
2304013
A
B
C
+5 VOLTS
GROUND
SIGNAL
ENGINE OIL
PRESSURE SENSOR
249-0098
994-A10 GY-18
G828-A38 WH-18
G829-A43 GN-18
A-C4
2370227
ENGINE OIL
PRESSURE SENSOR
248-2167
+5 VOLTS
GROUND
SIGNAL
INTAKE VALVE ACTUATION
PRESSURE SENSOR
22 3-0099
ENGINE COOLANT DIVERTER
SOLENOID VALVE
240-7339(12V)
G826-A21 BR-18
G827-A50 BU-18
T853-A11 OR-18
INTAKE
VALVE ACTUATION
PRESSURE SENSOR
248-2168
+5 VOLTS
GROUND
SIGNAL
ATMOSPHERIC
PRESSURE SENSOR
249-0094
OR-18
YL-18
GN-18
G828-A40 WH-18
G829-A42 GN-18
R747-A6 GY-18
A-C5
2304013
ATMOSPHERIC
PRESSURE SENSOR
248-2162
+5 VOLTS
GROUND
SIGNAL
BOOST
PRESSURE SENSOR
249-0096
OR-18
YL-18
GN-18
G828-A39 WH-18
G829-A41 GN-18
R746-A20 PK-18
A-C6
2370227
1
2
3
+5 VOLTS
GROUND
SIGNAL
BOOST
PRESSURE SENSOR
248-2165
1
2
3
+5 VOLTS
GROUND
SIGNAL
1
2
3
+5 VOLTS
GROUND
SIGNAL
SIGNAL+
SIGNAL- BK-18
WH-18
PRIMARY
ENGINE SPEED/TIMING SENSOR
(CRANKSHAFT)
201-6615
SECONDARY
ENGINE SPEED/TIMING SENSOR
(CAMSHAFT)
201-6616
FUEL
TEMPERATURE SENSOR
234-5013
SIGNAL
GROUND
INTAKE MANIFOLD AIR
TEMPERATURE SENSOR
234-5013
SIGNAL
GROUND
ENGINE COOLANT
TEMPERATURE SENSOR
130-9811
RD-16
RD-16
1
2
ENGINE COOLANT DIVERTER
SOLENOID VALVE
240-6822(24V)
GN-16
GN-16
INTAKE VALVE ACTUATION
PRESSURE SOLENOID VALVE
231-3269(12V)
RD-16
RD-16
1
2
INTAKE VALVE ACTUATION
PRESSURE SOLENOID VALVE
236-9837(24V)
GN-16
GN-16 1&2 RETARDER
SOLENOID
IDENT HARNESS CHG
A 248-4233 01 (J2 / ENGINE / EARLY PRODUCTION)
A 243-1069 01 (J2 / ENGINE / EARLY PRODUCTION)
A 263-9001 05 (J2 / ENGINE)
A 243-2321 00 (J2 / ENGINE /AIR SHUTOFF)
E 321-4324 00 (REAR - IVA/INJECTOR/RETARDER)
J 321-4323 00 (FRONT - IVA/INJECTOR/RETARDER)
THIS SCHEMATIC IS FOR THE C15 ON-HIGHWAY ENGINE
(S/N: MXS1-UP, NXS1-UP, AND RKS1-UP)
G828-A1 WH-18
G828-A38 WH-18
G828-A39 WH-18
G828-A40 WH-18
A-S1
HARNESS 248-4233
HARNESS 248-4233
HARNESS 248-4233
HARNESS 248-4233
HARNESS 248-4233
G829-A2 GN-18
G829-A43 GN-18
G829-A41 GN-18
G829-A42 GN-18
A-S2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
10
20
30
40
50
60
70
80
90
100
110
115
120
ECM
GROUND
STRAP
ECM
MOUNTING
BOLT
J-C8
1552269
A
B
J-C9
1552269
A
B
E-C8
1539693
NOTE X
A
B
A-C13
2304013
1
2
3
+5 VOLTS
GROUND
SIGNAL
HARNESS 248-4233
NOTE B: FOR SPEEDOMETERS OR TACHOMETERS WITH A SINGLE SIGNAL INPUT
TERMINAL, EITHER ONE OF THE TWO SIGNAL OUTPUT LINES FROM
THE ECM CAN BE USED. LEAVE THE REMAINING LINE DISCONNECTED,
DO NOT CONNECT TO GROUND.
NOTE C: "SINGLE" WINDING MAGNETIC PICKUP SENSOR RECOMMENDED.
NOTE D: THESE CONNECTIONS ARE UNSWITCHED, DIRECT CONNECTION
TO THE BATTERY IS NOT REQUIRED.
NOTE E: THE ECM SPEEDOMETER AND TACHOMETER OUTPUT SIGNAL LINE
VOLTAGES ARE ZERO-CROSSING SQUARE WAVES. THE SPEEDOMETER
SIGNALS AT J1-37 AND J1-36 ARE COMPLEMENTS OF EACH OTHER.
THE TACHOMETER SIGNALS AT J1-38 AND J1-39 ARE COMPLEMENTS
OF EACH OTHER. MAXIMUM SIGNAL AMPLITUDE OF J1-36, J1-37,
J1-38, AND J1-39 IS +/- 10 VOLTS. AMPLITUDE WILL BE +/- 5 VOLTS
OR GREATER IF LOAD CURRENT IS LESS THAN 4mA.
NOTE F: IF AN ELECTRONIC SIGNAL IS PROVIDED IN PLACE OF A PASSIVE
MAGNETIC SENSOR, CONNECT THE ELECTRONIC SIGNAL INPUT TO
THE +SIGNAL PIN, THE -SIGNAL PIN SHOULD NOT BE CONNECTED
OR GROUNDED WITH ELECTRONIC SIGNAL INPUTS.
NOTE G: WIRE NUMBER 386 IS FOR AIR SHUTOFF AND IS SPECIFIC TO HARNESS
243-2321. WIRE NUMBERS G856 AND G857 ARE FOR THE TIMING
CALIBRATION(TC) PROBE AND ARE SPECIFIC TO HARNESSES 243-2321 AND
248-2433.
NOTE H: ONLY APPLIES TO ENGINES WITH AIR SHUTOFF OPTION.
NOTE X: USE KIT 156-7106 WHEN REPLACING CONNECTOR 153-9693.
REFER TO REHS1809 FOR REPAIR AND INSTALLATION DETAILS.
NOTE Z: THE CONNECTOR ON THIS SCHEMATIC IS BLACK
AND CONNECTS DIRECTLY TO SERVICE TOOL CABLE 157-4829.
THE DIAGNOSTIC CONNECTOR NOT SHOWN HAS +BATTERY ON PIN (A) AND
-BATTERY ON PIN (B). THIS CONNECTOR IS GRAY AND CONNECTS TO SERVICE
TOOL CABLE 139-4166.
HARNESS 243-1069
G828-A1 WH-18
G828-A38 WH-18
G828-A39 WH-18
G828-A40 WH-18
A-S1
HARNESS 243-1069
G829-A2 GN-18
G829-A43 GN-18
G829-A42 GN-18
G829-A41 GN-18
A-S2
1
2
1
2
1
2
1
2
1
2
1
2
K739-B2 BU-16
K737-B1 BR-16
B-C1
3E3364
B-C2
7E6513
3&4 RETARDER
SOLENOID
1
2
K739-B2 BU-16
K737-B1 BR-16
B-C1
3E3364
B-C2
7E6513
5&6 RETARDER
SOLENOID
1
2
K739-B2 BU-16
K737-B1 BR-16
B-C1
3E3364
B-C2
7E6513
HARNESS 243-1069
G826-A21 BR-18
G827-A50 BU-18
T853-A11 OR-18
A-C13
3E3370
A
B
C
+5 VOLTS
GROUND
SIGNAL
OR-16
YL-16
GN-16
INTAKE VALVE
ACTUATION PRESSURE
SENSOR 224-4535
H807-A35 YL-18
T855-A34 BU-18
1
2
A-C14
1552269
ENGINE COOLANT DIVERTER
SOLENOID VALVE
240-6825(12V)
RD-16
RD-16
1
2
ENGINE COOLANT DIVERTER
SOLENOID VALVE
240-6822(24V)
GN-16
GN-16
995-A12 BU-18
G833-A44 PK-18
1
2
A-C11
2304011
SIGNAL
GROUND
ENGINE COOLANT
TEMPERATURE SENSOR
234-5012
G833-A45 PK-18
C967-A15 BU-18
1
2
A-C9
1552269
SIGNAL
GROUND
INTAKE MANIFOLD AIR
TEMPERATURE SENSOR
130-9811
F421-A13 YL-18
G833-A46 PK-18
1
2
A-C10
1552269
SIGNAL
GROUND
FUEL TEMPERATURE
SENSOR 130-9811
HARNESS 243-1069
HARNESS 243-1069
HARNESS 243-1069
HARNESS 243-1069
G856-A8 WH-18
G857-A9 YL-18
E963-A27 BK-18
E964-A26 WH-18
1
2
P401
1552269
SIGNAL+
SIGNAL-
PRIMARY ENGINE
SPEED/TIMING SENSOR
(CRANKSHAFT)
191-8303
HARNESS 243-1069
G828-A39 WH-18
G829-A41 GN-18
R746-A20 PK-18
A-C6
155-2267
1
2
3
+5 VOLTS
GROUND
SIGNAL
BOOST
PRESSURE SENSOR
239-3478
HARNESS 243-1069
G828-A40 WH-18
G829-A42 GN-18
R747-A6 GY-18
A-C5
3E3370
ATMOSPHERIC
PRESSURE SENSOR
194-6722
1
2
3
+5 VOLTS
GROUND
SIGNAL
HARNESS 243-1069
1
2
SIGNAL+
SIGNAL- BK-18
WH-18
A
B
C
+5 VOLTS
GROUND
SIGNAL
OR-18
YL-18
GN-18
G828-A40 WH-18
G829-A42 GN-18
R747-A6 GY-18
A-C4
3E3370
ATMOSPHERIC
PRESSURE SENSOR
194-6725
HARNESS 243-1069
LEFT SIDE VIEW RIGHT SIDE VIEW
FRONT VALVE COVER
CONNECTOR
A-C2
ENGINE COOLANT DIVERTER
SOLENOID VALVE
A-C14
ENGINE COOLANT
TEMPERATURE SENSOR
A-C11
INTAKE VALVE ACTUATION
PRESSURE SOLENOID VALVE
A-C15
INTAKE VALVE ACTUATION
PRESSURE SENSOR
A-C13
BOOST PRESSURE
SENSOR
A-C6
SECONDARY ENGINE
SPEED/TIMING
SENSOR (CAMSHAFT)
A-C7
PRIMARY ENGINE
SPEED/TIMING
SENSOR (CRANKSHAFT)
A-C8
FUEL
TEMPERATURE
SENSOR
A-C10
TIMING
CALIBRATION
PORT
INTAKE MANIFOLD AIR
TEMPERATURE SENSOR
A-C9
TIMING CALIBRATION (TC)
PROBE CONNECTOR
A-C12
ENGINE OIL
PRESSURE SENSOR
A-C4
ATMOSPHERE
PRESSURE SENSOR
A-C5
ENGINE CONTROL
MODULE (ECM)
A-C1
P1/J1
J1
REAR VALVE COVER
CONNECTOR
A-C3
386-A59 PK-18
K739-A58 BU-16-HV
386-A60 PK-18 1
2
AIR INLET
SHUTOFF SOLENOID
213-1626
NOTE H
TO +BATTERY
MOMENTARY
PUSHBUTTON (NO)
MANUAL AIR INLET
SHUTOFF SWITCH
RD-12
AIR INLET SHUTOFF
RELAY (N/O)
241-8371
NOTE H
TO +BATTERY
1
2
GROUND
K739-A58 BU-16-HV
386-A59 PK-18
386-A60 PK-18
386-A61 PK-18
A-S7
386-A61 PK-18 AIR SHUTOFF
A-C16
1552269
A-C17
3E-3364
A-C18
155-2269
211-7888
NOTE H
AIR SHUTOFF
CIRCUIT
AIR INLET
SHUTOFF
SOLENOID
AIR INLET
SHUTOFF
RELAY
MANUAL AIR
INLET SHUTOFF
SWITCH CONNECTOR
TOP
VIEW
LEFT
VIEW
HARNESS 243-1069
ONLY
227-4002
1
2
3
4
5
6
7
8
9
23
24
25
26
27
28
29
30
31
22
44
60
68
69
70
71
72
73
74
75
88
89
90
91
92
93
94
95
96
97
110
120
45
46
47
48
49
50
51
11
12
13
14
15
16
17
18
19
20
21
32
33
34
35
36
37
38
39
40
41
42
43
52
53
54
55
56
57
58
59
61
62
63
64
65
66
67
77
78
79
80
81
82
83
84
85
86
87
76
99
100
101
102
103
104
105
106
107
108
109
98
111
112
113
114
115
116
117
118
119
10
160-7689
2 1
155-2269
230-4013
237-0227
1
2
3 1
RED
GRAY
2
3
C
C
B
B
3E-3370
A
A
155-2267
7E-6513
Wire 1
Wire 2
B B
A
153-9693 (NOTE X)
155-2252
9
4
8
5
12 11
2
1 6
7
3
10
290-8858
230-4011
9
4
8
5
12
11
2 1
6
7
3
10