Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-1C22

Condition
The central electronic module (CEM) checks the output signal to the relay coil for relay infotainment.
Diagnostic trouble code (DTC) CEM-1C22 is stored if the central electronic module (CEM) registers that the output signal to the relay coil is too low/absent.
Diagnostic trouble code (DTC) CEM-1C22 can be detected when the relay driver is not activated.

Substitute value
- None.

Possible source
- Relay missing
- Defective relay
- Contact resistance in the relay base.

Fault symptom[s]
- Audio unit not operating.