Signal Too Low. Intermittent Fault

Signal too low. Intermittent fault

Checking the control module for open-circuits
Remove relay 2/119.
Check the driver circuit for the relay coil for an intermittent open-circuit as follows:
Measure the voltage between terminals #1 and #2 on the relay base.
Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults
Activate the relay driver for the right rear window down: Click on the VCT2000 symbol.

Hint: The voltage between terminals #1 and #2 should be battery voltage.

If the value deviates significantly, check voltage between #2 and battery voltage as well as between #1 and ground. Both shall be equal to battery voltage. Check for an intermittent open-circuit. Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults Do not forget to check that the power supply to the control module is OK.

Other information
- Central electronic module (CEM), replacing Central Electronic Module (CEM), Replacing










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 - Checking the control module for open-circuits

FAULT FOUND - DONE

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