Audio Remote-HFL Switch
The audio remote switch and the HFL switch are integrated to the audio remote-HFL switch that uses the digital communication (LIN).
When using any button or the touch switch on the audio remote-HFL switch, the control signal is sent to the audio-navigation unit via the gauge control module.
If the LIN circuit is open or shorted between the gauge control module and the audio remote-HFL switch, the gauge control module detects the related DTC.