Signal too high. Permanent fault

Signal too high. Permanent fault

Replacing the component
Replace relay, 2/58.
Activate the relay.
If the function is OK the cause of the fault was a defective relay (short-circuit in the relay).

Other information:
- To access the integrated relay / fusebox in the cargo compartment, see Relay/fuse box cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing.









Was the function OK?

Yes - Fault Found

No - Checking the control module

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Checking the control module
- Remove the relay.
Check the relay coil driver circuit for a short-circuit to supply voltage by taking a voltmeter reading at terminal #2 in the relay base.
For further information about a short-circuit to supply voltage, see Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.

Hint: The voltage between terminal #2 and ground should be approximately 0 V.








If the voltmeter displays an incorrect value replace the control module.

Other information:
- To access and replace the integrated relay / fusebox in the cargo compartment, see Relay/fuse box cargo compartment/Rear electronic module (REM), replacing Integrated Relay/Fusebox Cargo Compartment/Rear Electronic Module (REM), Replacing.


Continue - Verification

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Verification




Verification

Verification

Hint: After the repair it is necessary to check that the fault has been rectified.








- Ignition off.
- Connect connectors, install components, etc.
- Ignition on.
Activate relay.
If the function is now OK, this means that the fault was caused by a short circuit in the relay driver.





Does it work?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - Fault Found

VERIFICATION FAILED - Fault-tracing information

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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 - FAULT-TRACING FAILED

No - Attempt New Test

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Attempt New Test - Replacing the component

FAULT-TRACING FAILED - No Fault Found

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