Signal Missing

Signal missing

Information
The immobilizer function is integrated in the central electronic module (CEM).
This diagnostic trouble code (DTC) may be due to missing CAN communication. If there is a diagnostic trouble code (DTC) stored in the central electronic module (CEM) fault trace accordingly.

Note! An unprogrammed central electronic module (CEM) does not have a code for the immobilizer, which can result in this diagnostic trouble code (DTC) being stored.

If no diagnostic trouble codes (DTCs) are stored in the central electronic module (CEM), try a new central electronic module (CEM).

Other information:
- Signal specification, B5254T7 Signal Specification
- Engine control module (ECM), B5254T7 Service and Repair
- Control module relay box passenger compartment Service and Repair

Continue - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
In case of this defect, troubleshooting is not followed by verification.
The information can be displayed again or the fault-tracing for this fault can be interrupted.

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Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Information

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