NO.6 VOLUME INCREASES/DECREASES WHILE DRIVING THE VEHICLE [ENTIRE AUDIO SYSTEM]

id0903e2818500

6

Volume increases/decreases while driving the vehicle/ Possible DTC: —
Troubleshooting hints
•  Audio unit malfunction (without Bose®)
•  Audio amplifier malfunction (with Bose®)
Note
•  Inspect the ALC function (without Bose®)/ Audiopilot function (with Bose®) while driving the vehicle with playing a CD.

Diagnostic procedure

STEP

INSPECTION

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