Operation CHARM: Car repair manuals for everyone.

Signal Too High






Signal too high

Checking for permanent or intermittent faults




- Ignition on.
Check if the lamp in the power door mirror lights up and goes out.





Is the lamp in the power door mirror working?

Yes - Intermittent fault

No - Checking for a short-circuit

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

Checking for a short-circuit

If the car is equipped with a 10-pin connector
Check the cable between door control module terminal #8B and power door mirror terminal #6. Check for a short-circuit to supply voltage.
Replace the cable if a fault is found.

If the car is equipped with a 16-pin connector
Check the cable between door control module terminal #8B and power door mirror terminal #13. Check for a short-circuit to supply voltage.
Replace the cable if a fault is found.

Other information:
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box
- For further information about signals and other values, see Signal specification Signal Specification, Driver Door Module (DDM) / Passenger Door Module (PDM)
- Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.













Were any faults found in the cable?

Yes - Verification

No - Replacing the component

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

Replacing the component
Check that there are no short-circuits in the bulb holder.
Remedy as necessary.
If no fault is found, replace the lamp in the power door mirror.





Continue - Verification

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

Intermittent fault
Check the control module and power door mirror connectors. Check for contact resistance, oxidation and loose connections.

If the car is equipped with a 10-pin connector
Check the cable between door control module terminal #8B and power door mirror terminal #6. Check for an intermittent short-circuit to supply voltage. Check for an intermittent open-circuit.

If the car is equipped with a 16-pin connector
Check the cable between door control module terminal #8B and power door mirror terminal #13. Check for an intermittent short-circuit to supply voltage. Check for an intermittent open-circuit.
Check the lamp and bulb holder if no faults were found.

Other information:
- To connect the breakout box, see Connecting the breakout box Connecting the Breakout Box
- For further information about signals and other values, see Signal specification Signal Specification, Driver Door Module (DDM) / Passenger Door Module (PDM)
- To access and replace the lamp and bulb holder, see
- Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.













Continue - Fault-tracing information

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

Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reconnect the components, connectors etc.
- Ignition on.
Check if the lamp in the power door mirror lights.





Does the lamp in the power door mirror light?

Yes - Verification completed

No - Fault-tracing information

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

Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit Fault-Tracing

No - Attempt New Test

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

Attempt New Test - Checking for permanent or intermittent faults

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

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 - Exit fault-tracing

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

Attempt New Test - Checking for permanent or intermittent faults

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