Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ICM-6C7C

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 module (ICM) checks whether the Bluetooth phone module (BPM) is in the valid list stored in the central electronic module (CEM).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Bluetooth phone module (BPM) is not in the approved list.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- When the ignition is on for at least 12 seconds and the battery voltage is above 11 V and security on MOST is activated.

Substitute value
- None.

Possible source
- Replacement of the Bluetooth phone module (BPM) invalid according to the valid list stored in the Central electronic module (CEM).
- Software was not downloaded upon replacement of the Bluetooth phone module (BPM).
- Failed or incomplete software download to Bluetooth phone module (BPM).

Fault symptom[s]
- Bluetooth Telephone: No Functionality