AUM-3100

Condition
Diagnostic trouble code (DTC) AUM-3100 is stored if the audio unit registered a fault in the antenna signal between the GPS antenna and the audio unit during the self-test carried out every 30 seconds.

Substitute value
- None.

Possible source
- Contact resistance or oxidation in the connectors
- Short-circuit to supply voltage or ground in the antenna cable
- Defective antenna cable
- Defective GPS antenna

Fault symptom[s]
- The car's position on the map is incorrect
- The audio equipment is not working
- The RTI system is not working
- Incorrect color on the display
- No voice message