Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition
Diagnostic trouble code (DTC) AUM-4BFF is stored if the control module registers that there was a fault when the software was downloaded.

Possible source
- Fault when downloading new software.

Fault symptom[s]
- The rheostat does not function.
- Keypad lighting not operating.
- The carphone mute does not function.