Signal Too High

Signal too high

Checking the component
Replace relay 2/91.
Activate the relay for windshield wipers on.
If the function is OK, the cause of the fault was a damaged relay (short-circuit in the relay).

Other information:
- For further information about the fuses and relays, see the Wiring Diagram.

Was a fault detected?

Yes - Verification

No - Checking fusebox

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Checking fusebox
Remove windshield wiper relay 2/91 from the fusebox base.
Check the relay coil driver circuit for a short-circuit to supply voltage. Take a voltmeter reading between terminal #2 and ground in the relay base.
The voltage between terminal #2 and ground must be approximately 0 V.
Remedy as necessary.

Other information
- For further information about the fuses and relays, see the Wiring Diagram
- Checking wiring and terminals Checking Wiring And Terminals





Was a fault detected?

Yes - Verification

No - Checking the component

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Verification




Verification

Verification

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








- Ignition off
- Reinstall the connectors, components etc.
- Ignition on.
Activate the windshield wipers.
Check that the windshield wipers work in all positions.

Are the windshield wipers working?

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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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking fusebox

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Checking the wiring
Check the cable between windshield wiper relay base terminal #2 and central electronic module (CEM) terminal #C4. Check for a short-circuit to supply voltage.
Remedy as necessary.
Replace the fusebox if no fault is found.

Other information
- For further information about the fuses and relays, see the Wiring Diagram
- Checking wiring and terminals Checking Wiring And Terminals


Continue - Verification

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