Faulty Signal

Faulty signal

Checking the serial number
Compare the serial number on the control module with the table. Check that the number corresponds to the car.
SRS serial number
AABBBCCCCD Ten symbols in total





Replace the control module if the serial number is not correct.

Other information
- To access / replace the control module, see SRS control module 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
- Disconnect the battery negative lead
- Reinstall the connectors, components etc.
- Ignition on
- Connect the battery negative lead.

Warning! There must not be anyone inside the passenger compartment when the battery is connected.

- Read off diagnostic trouble codes (DTCs).
The fault is no longer present if the status of the diagnostic trouble code (DTC) has changed to intermittent.





Does the status change?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Verification

VERIFIED - FAULT FOUND

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Verification




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 serial number

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