Fault-Tracing

Fault-tracing

Checking communication




- Ignition off, wait for 10 seconds.
- Check CAN communication between the central electronic module (CEM) and the supplemental restraint system module (SRS).
If no malfunction is found:
- Fault-trace the central electronic module (CEM).
Remedy as necessary.

Other information
- Connecting the breakout box Connection of Breakout Box, Supplemental Restraint System Module (SRS)
- Signal specification Signal Specification, Supplemental Restraint System Module (SRS)
- For further information, see the wiring diagram.
- Air bag supplemental restraint system Service and Repair
- General information about fault-tracing in the CAN network Initial Inspection and Diagnostic Overview
- Checking wiring and terminals Checking Wiring and Terminals

Select "Continue" when the fault has been remedied.

Continue - Verification

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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 communication

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Verification




Verification

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




- Reinstall the connectors, components etc.
- Switch on the ignition. Wait 10 seconds.
Read diagnostic trouble codes by clicking the VCT2000 symbol.
If the fault is intermittent, the fault has been remedied.





Is the fault intermittent?

Yes - Troubleshooting procedure complete

No - Fault-tracing information

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