NO.6 SOUND BECOMES LOUDLY OR WEAKLY WHILE DRIVING THE VEHICLE [AUDIO]

id0903e1857000

6

Sound becomes loudly or weakly while driving the vehicle/Possible DTC: —
Troubleshooting hints
•  Audio unit/car-navigation unit malfunction (without Bose®)
•  Audio amplifier malfunction (with Bose®)
Note
•  Inspect the ALC function (without Bose®) or AUDIOPILOT function (with Bose®) while driving the vehicle with playing the CD, etc.

Diagnostic procedure

STEP

INSPECTION

ACTION
1
•  Does the ALC (without Bose®)/AUDIOPILOT function (with Bose®) turn on?
Yes
Go to the next step.
No
Without Bose®:
•  Replace the audio unit/car-navigation unit.
With Bose®:
•  Replace the audio amplifier.
2
•  Turn the ALC (without Bose®)/AUDIOPILOT function (with Bose®).
•  Does the sound change while driving the vehicle?
Yes
Without Bose®:
•  Replace the audio unit/car-navigation unit.
With Bose®:
•  Replace the audio amplifier.
No
The system is normal.
Explains the ALC (without Bose®)
®)/AUDIOPILOT function (with Bose®) to the customer.