Audio system is operative, but audio control switch does not control audio system
Precautions: Precautions for Audio Visual / Navigation · Precautions for Body, Cab and Accessories · General safety (00)
Before performing the following troubleshooting, check if the symptom is not caused by incorrect handling while referring to Owner’s Manual.
If the cause cannot be identified by the following troubleshooting, replace audio unit with a known-good one. If the symptom is cleared, audio unit is the cause.
| Condition | Possible Cause | Action |
|---|---|---|
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Audio system is operative, but audio control switch does not control audio system
|
Faulty audio control switch connector
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Check steering switch connectors for connection.
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Faulty audio control switch
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Faulty audio control switch circuit
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Refer to Audio System Circuit Diagram.
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