Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ICM-6C7B

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 Remote Digital Audio Receiver (RDAR) is in the valid list stored in the central electronic module (CEM).
The diagnostic trouble code (DTC) is stored if the infotainment module (ICM) registers that the Remote Digital Audio Receiver (RDAR) is not in the valid list.
The diagnostic trouble code (DTC) can be diagnosed with the ignition on for at least 12 seconds, battery voltage greater than 11 V and security on MOST activated.

Substitute value
- None.

Possible source
- Replacement of the Remote Digital Audio Receiver (RDAR) invalid according to the valid list stored in the central electronic module (CEM).
- Software was not downloaded upon replacement of the remote digital audio receiver (RDAR).
- Unsuccessful or incomplete software download to the remote digital audio receiver (RDAR).

Fault symptom[s]
- Digital Radio; No Functionality