Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-DE42

Condition
The diagnostic trouble code (DTC) is stored if the Central electronic module (CEM) registers that there is no communication with the Convertible Roof Module (CRM).

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 Convertible Roof Module (CRM).
- Open-circuit in the ground lead for the Convertible Roof Module (CRM).
- Contact resistance in the terminals.
- Open-circuit on the cables for LS-CAN to Convertible Roof Module (CRM).
- The Convertible Roof Module (CRM) is not intended for this vehicle, for example a control module with different software/hardware has been used.

Fault symptom[s]
- Lockable storage doesn't work
- Lockable storage doesn't work