Faulty Signal

Faulty signal

Information about symptom fault-tracing
The diagnostic trouble codes (DTCs) are included in a larger fault-tracing for the symptom Starter motor not running.
Add the symptom and fault trace according to Checking the start system.
If this has already been carried out, continue fault tracing.

Do you want to continue with this procedure?

Yes - Checking the wiring

No - Exit fault-tracing

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Checking the wiring




- Ignition off.
Check the power supply cable between central electronic module (CEM) terminal #B10 (D10) and the steering column lock module (SCL) terminal #A2. Check for a short-circuit to supply voltage.
Remedy the cables as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- Signal specification Signal Description, Central Electronic Module (CEM)
- Control module relay box passenger compartment Service and Repair









Was a fault detected?

Yes - Verification

No - Replacing the control module

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Replacing the control module




- Ignition off.
If no other fault has been found, there is probably an internal fault in the steering column lock module (SCL). The control module must therefore be replaced.

Other information
- Control module relay box passenger compartment Service and Repair

Continue - Verification

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Verification




Verification

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




- Ignition off
- Reinstall the connectors, components etc.
- Insert the ignition key in the ignition switch.
The steering column lock must be unlocked when the key is inserted in the ignition switch.

Can the steering wheel be turned?

Yes - Troubleshooting procedure complete

No - 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 - Exit Fault-Tracing

No - Attempt New Test

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Attempt New Test - Checking the wiring

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