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

id0903e2818500

6

Volume increases/decreases while driving the vehicle

Possible DTC

—

POSSIBLE CAUSE

•  Audio unit malfunction (without Bose^®)

•  Audio amplifier malfunction (with Bose^®)

Note

•  Inspect the ALC function (without Bose^®) or AudioPilot^®2 function (with Bose^®) while driving the vehicle and playing a CD.

6	Volume increases/decreases while driving the vehicle
POSSIBLE CAUSE	• Audio unit malfunction (without Bose^®) • Audio amplifier malfunction (with Bose^®) Note • Inspect the ALC function (without Bose^®) or AudioPilot^®2 function (with Bose^®) while driving the vehicle and playing a CD.

Diagnostic procedure

STEP	INSPECTION		ACTION
1	• Does the ALC function or AudioPilot^®2 function turn on?	Yes	Go to the next step.
1	• Does the ALC function or AudioPilot^®2 function turn on?	No	Without Bose^® • Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.) With Bose^® • Replace the audio amplifier if the following occurs: (See AUDIO AMPLIFIER REMOVAL/INSTALLATION.) ― The volume changes suddenly.
2	• Turn the ALC function or AudioPilot^®2 function off. • Does the sound change while driving the vehicle?	Yes	Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.)
2		No	The system is normal. Explain the ALC function or AudioPilot^®2 function to the customer.

6	Volume increases/decreases while driving the vehicle
Possible DTC	—
POSSIBLE CAUSE	• Audio unit malfunction (without Bose^®) • Audio amplifier malfunction (with Bose^®) Note • Inspect the ALC function (without Bose^®) or AudioPilot^®2 function (with Bose^®) while driving the vehicle and playing a CD.