Audio amplifier specification verification
- Switch the ignition to ACC or ON (engine off or on).
- Turn the audio unit power on.
- While pressing the POWER/VOLUME button, press the TUNE (down)/H button for 3 s or more.
- Inspect according to the following table:
Inspection Display Action - Verify the audio amplifier specifications.
- Are the audio amplifier specifications correct?
Vehicle without Bose ® - N (Normal)
Yes System is normal. No Replace the audio unit.
(See AUDIO UNIT REMOVAL/INSTALLATION .) - Switch the ignition off to end the diagnostic assist function.