Diagnostic Trouble Code (DTC) Information CEM-De58
Condition
The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers that communication with the supplementary restraint system (SRS) control module is not operating.
NOTE:
In the event of CEM-DEXX diagnostic trouble codes (DTCs) being stored the central electronic module (CEM) must not be replaced; the diagnostic trouble code (DTC) indicates a communication fault in the Control area network
The diagnostic trouble code (DTC) can be diagnosed when the ignition has been on for at least 10 seconds.
Substitute Value
- None.
Possible Source
- No power supply to SRS control module
- Open-circuit in the ground lead to the SRS control module
- Contact resistance in the terminals
- Open-circuit in the wiring for the CAN low speed network to the SRS control module
- The SRS control module is not intended for this car (for example a used control module with different software/hardware).
Fault symptom[s]
- The SRS indicator lamp is lit.