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2008 - MX-5 - Body and Accessories

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



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.


Diagnostic procedure

STEP

INSPECTION

ACTION

1

  • Does the ALC function or AudioPilot function turn on?

Yes

Go to the next step.

No

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.)

No

The system is normal. Explain the ALC function to the customer.




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