AUM-41FF

Condition
Diagnostic trouble code (DTC) AUM-41FF is stored if the head unit/audio control module registers that there is an open-circuit in the power supply to the sub-antenna or a faulty installation.

Possible source
- Open-circuit in the power supply from the head unit/audio control module to the sub-antenna.
- Sub-antenna not installed.
- Defective sub-antenna amplifier.

Fault symptom[s]
- Bad radio reception.