NO.6 VOLUME INCREASES/DECREASES WHILE DRIVING THE VEHICLE


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) or Audio Pilot function (with Bose) while driving the vehicle and playing a CD.


STEP	INSPECTION		ACTION
1	• Does the ALC function or AudioPilot function turn on?	Yes	Go to the next step.
1	• Does the ALC function or AudioPilot function turn on?	No	Without Bose • Replace the audio unit. (See CENTER PANEL UNIT REMOVAL/INSTALLATION.) (See CENTER PANEL UNIT DISASSEMBLY/ASSEMBLY.) (See AUDIO 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 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.) (See AUDIO UNIT DISASSEMBLY/ASSEMBLY.)
2		No	The system is normal. Explain the ALC function to the customer.