Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ICM-6C74

Condition




The serial number for each control module in the infotainment system is stored in the central electronic module (CEM). The stored numbers are compared with the serial numbers of the control modules at start up. If any number does not correspond, that particular control module is blocked and the function is not available. The blocking function for non-approved control modules is designated security on MOST.
The infotainment control module (ICM) checks whether the MD module (MP1) is in the approved list stored in the central electronic module (CEM).
Diagnostic trouble code (DTC) ICM-6C74 is stored if the infotainment control module (ICM) registers that the MD module (MP1) is not in the approved list.
Diagnostic trouble code (DTC) ICM-6C74 can be detected when the ignition is on for at least 12 seconds and the battery voltage is > 11 V and security on MOST is activated.

Substitute value
- None.

Possible source
- Replacing a MD module (MP1) which is not approved in the list stored in the central electronic module (CEM)
- Software not downloaded when replacing the MD control module (MP1)
- Failed or incomplete software download for the MD module (MP1).

Fault symptom[s]
- The MD player is not working.