FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Faulty Signal






Faulty signal. Intermittent fault

Checking the connectors and components








- Check the connector for the door node and door mirror. Check for contact resistance and oxidation.
Remedy as necessary
- Reinstall the connectors, components etc.
- Ignition on.
Test the door mirror function by changing its position and reading off the end values registered by the door mirror potentiometer.

Hint: The end values for the door mirror potentiometer should be between approximately 1 V and 4 V.

Other information:
- To access the door mirror, see Door mirror, replacing Service and Repair
- Checking wiring and terminals Checking Wiring And Terminals.









Was a fault detected?

Yes - Fault Found

No - Checking a faulty signal

-------------------------------------------------

Checking a faulty signal
Check the cable between control module terminal #25A and door mirror terminal #1. Check for a short-circuit to ground.
Check the cable between control module terminal #8A and door mirror terminal #11. Check for a short-circuit to supply voltage. Check for an open-circuit.

DDM/PDM-0030 Door mirror potentiometer, faulty signal
Check the cable between control module terminal #9A and door mirror terminal #9. Check for a short-circuit to supply voltage. Check for an open-circuit.

DDM/PDM-0032 Door mirror potentiometer, faulty signal
Check the cable between control module terminal #10A and door mirror terminal #10. Check for a short-circuit to supply voltage. Check for an open-circuit.

Other information:
- For further information about signals and other values, see Signal specification Pinout Values and Diagnostic Parameters
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box
- Checking wiring and terminals Checking Wiring And Terminals.










Continue - Fault-tracing information

-------------------------------------------------

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

------------------------

FAULT FOUND - Fault Found

Attempt New Test - Checking the connectors and components

-------------------------------------------------