Communication Problems With the Steering Wheel Module (SWM), Control Module Not Initiated

Communication problems with the steering wheel module (SWM), control module not initiated

Fault-tracing information
The steering wheel module (SWM) is initiated when the steering wheel is turned more than 5° in any direction. The diagnostic trouble code (DTC) may be stored if the car has been driven for more than 2 minutes without turning the steering wheel. Discuss with the customer if this might be a possible reason for the diagnostic trouble code (DTC) being stored.
If diagnostic trouble code (DTC) BCM-A030 is stored, fault-tracing must be carried out according to the relevant information.

Is diagnostic trouble code (DTC) BCM-A030 stored?

Yes - Carry out fault-tracing for BCM-A030

No - Erasing diagnostic trouble codes (DTCs)

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Erasing diagnostic trouble codes (DTCs)




- Ignition on
- Erase the diagnostic trouble codes (DTCs) from the brake control module (BCM).






Continue - Reading off diagnostic trouble codes (DTCs)

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Reading off diagnostic trouble codes (DTCs)




- Ignition off
- Wait approximately 15 seconds
- Ignition on
- Read off diagnostic trouble codes (DTCs).





Is diagnostic trouble code (DTC) BCM-0108 stored?

Yes - Remedy as necessary.

No - Fault has been remedied.

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Information

Fault-tracing information
The fault should be diagnosed and remedied. Since this is not the case the fault-tracing process has failed.
Complete the fault-tracing for those fault or try again.

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