Signal Too High

Signal too high

Checking the wiring and connectors




- Ignition off
- Check the connector pin for the horn's relay in Central electronic module (CEM) #G18 (#18) for short-circuiting to voltage. Also check the cable between Central electronic module (CEM) #G18 (#18) and horn relay (2/17) in the front fuse box. Check for a short-circuit to supply voltage. For more information, see wiring diagram and signal description.
- Click the VCT2000 symbol to read out relay status.
- If no problem was detected, replace the relay 2/17.

Other information
- Connecting the breakout box Connecting The Breakout Box, Central Electronic Module (CEM)
- Signal specification Signal Description, Central Electronic Module (CEM)
- Location of components Component Location, Central Electronic Module (CEM)
- Control module relay box passenger compartment Service and Repair
- Checking wiring and terminals Checking Wiring and Terminals






Continue - Verification

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Info




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

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Attempt New Test - Checking the wiring and connectors

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Verification





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

- Ignition off.
- Reinstall the connectors, components etc.
- Ignition on.
- Check that the horn is working.

Is the function OK?

Yes - Fault Found

No - Info

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