1. Volkswagen Gore air conditioning dilemma
A mileage over 200,000 km of 2004 Shanghai Volkswagen the Gore cars. The owners mentioned:
no idling the engine soon after the auto, stepping on the accelerator Ford VCM pedal to forward
only reside car or truck. The auto air conditioning electromagnetic clutch will pull the air
conditioning to perform, operate the air conditioner switch doesn't work, the air conditioning can
not be turned off, plus the air-conditioning switch, no the regular energy indicator.
Diagnosis: Initially, verify if no idling, using the ignition timing gun proofing ignition timing when
it X431 is identified that the the premature ignition time returned to typical, following the
adjustment in the ignition time, idling.
Check the air conditioning can not be shut down, plug in decoder to view the information stream of
the engine Launch X431system, Group 19, District 2, you could see there has been air-conditioned
open signal. Suspected harm to the air conditioning switch, and unplug it to take away the air
conditioning switch, nonetheless unable to disconnect the air conditioning compressor
electromagnetic clutch, after which observe the air conditioning auto diagnostic tools switch data
items within a information stream, continues to be open state, indicating that this auto failure is
not caused by the air conditioning switch, almost certainly somewhere in the line there is a short
circuit fault.
Check the facts discovered inside the cab on the central distribution box on a relay will be the air
conditioning fan relay, to unplug air conditioning fan relay, air conditioning compressor
electromagnetic clutch disconnect observe this relay auto code reader devoted relay of a typical
five-foot relay, and not a Volkswagen car or truck, marked around the drawing this relay internal
electronic elements, this relay is just a simple, ordinary relay, it truly is estimated than the car's
Following appliances, artificially installed incorrect, the bring about of this failure.
Original automobile relay can not come across it, can not order a brand new relay, and Al Gore
usually are not numerous autos in our neighborhood, even when they know the relay number,
estimated not necessarily have the ability to purchase, owners eager car, in line with the principles
of evaluation, ordinary relays auto diagnostic tools is usually accomplished by way of the easy
transformation after the handle functions in the original auto, which we use a relay with two diodes
along with a relay rather than the original auto shown in Figure 2-11, in accordance with the
principle of evaluation feasible.