CEM-1A51

Condition
If the central electronic module (CEM) registers that communication with the supplemental restrain system (SRS) control unit does not work, diagnostic trouble code CEM-1A51 is displayed.

Condition
None

Possible source
- No power supply to SRS control unit
- Contact resistance in the connectors
- Open circuit on the CAN bus
- Defective SRS control unit.

Condition
- SRS warning lamp on.