ASC SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips


  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

ASC System
Symptom Suspected Area Link
Dynamic engine sounds cannot be heard Power source circuit

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Main switch circuit

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No. 1 speaker assembly with box

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Stereo component equalizer assembly (for LHD)

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Stereo component equalizer assembly (for RHD)

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Vehicle sound switch indicator does not illuminate Main switch circuit

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