NO.6 VOLUME INCREASES/DECREASES WHILE DRIVING THE VEHICLE [ENTIRE AUDIO SYSTEM]
id0903e2818500
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6 |
Volume increases/decreases while driving the vehicle |
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Possible DTC |
— |
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Possible cause
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• Audio unit malfunction (without Bose®)
• Audio amplifier malfunction (with Bose®)
• CAN signal wiring harness malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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• Does the ALC (Without Bose®)/AudioPilot®2 function (With Bose®) turn on?
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Yes
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Go to the next step.
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No
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Without Bose®:
• Replace the audio unit.
With Bose®:
• Replace the audio amplifier.
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2
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• Turn off the ALC (Without Bose®)/AudioPilot®2 function (With Bose®).
• Does the sound change while driving the vehicle?
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Yes
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Without Bose®:
• Replace the audio unit.
With Bose®:
• Replace the audio amplifier.
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No
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The system is normal.
Explains the ALC (Without Bose®)/AudioPilot®2 function (with Bose®) to the customer.
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