Faulty Signal. Intermittent Fault

Faulty signal. Intermittent fault

Intermittent fault
Check the climate control module connector A (30-pin) and the left seat heater module connector A. Check for contact resistance and oxidation.
Check the signal cable between climate control module terminal #A9 and connector terminal A#2 on the left seat heater module. Check for an intermittent open-circuit. Check for an intermittent short-circuit to ground.

Note! If the seat heater is activated at high or low level, the signal in the cable is pulsed in pulse trains between approximately 0 V and battery voltage.

Other information:
- To access and replace the seat heater module, see Seat heater module, replacing Front Seat, Driver's Seat, Front Seat
- To connect the breakout box, see Connecting the breakout box, climate control module Connecting The Breakout Box
- For the voltage of the signal cable, see Climate control signal specifications Signal Specification
- Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults














Continue - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Intermittent fault

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