Faulty Signal

Faulty signal. Permanent fault

Checking parameters




- Ignition on.
Check visually what type of car it is and read off the parameter "control" for the central electronic module (CEM) and the SRS control module and compare.





Is the parameter "control" the same for the central electronic module (CEM) CEM and SRS module. Does the parameter correspond with the type of car?

Yes - Verification

No - Programming the control module

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Programming the control module
Try to reprogram the control modules for:
- the SRS system according to Control module SRS (supplemental restraint system), replacing Service and Repair
- the central electronic module (CEM) according to Central electronic module (CEM), replacing Central Electronic Module (CEM), Replacing.


Continue - Verification

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Verification




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 diagnostic trouble code (DTC) status is intermittent.





Is the diagnostic trouble code (DTC) intermittent?

Yes - VERIFIED

No - VERIFICATION FAILED

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VERIFICATION FAILED - Fault-tracing information

VERIFIED - Fault Found

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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 parameters

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