Not all self-diagnostic functions appear on all models.
There may be other self-diagnostic functions that are for factory use only.
Turn the ignition switch to ON (II). Turn the audio unit off.
Push and hold the No. 1 and No. 6 buttons. While holding the buttons, push the VOL knob to on. Release the buttons.
Press the No. 6 button, and the communication connection check mode begins.
Each time you press the No. 6 button, the communication connection state is displayed in the following order.
NOTE: If the switch panel display or the center display is blank in all headlight positions, or blank only when the headlights are tuned on, check for B-CAN DTCs.
Display Specifications (With navigation system)
Displayed Segments
State
Remarks
DSP OK
The audio-HVAC subdisplay unit or the audio-HVAC display unit is connected.
DSP NG
The audio-HVAC subdisplay unit or the audio-HVAC display unit is not connected.
AC OK
The climate control unit is connected.
AC NG
The climate control unit is not connected.
AMP OK 00
The stereo amplifier is connected.
Applicable to the premium audio system
AMP OK 04
The stereo amplifier is connected (Error has occurred four times in the past).