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If the voice guide is not sent when the steering wheel remote control switch (speech switch) is pushed, the communication between the radio and CD player and the hands free-ECU, or the communication between the radio and CD player and the steering wheel remote control switch, the hands free-ECU or the steering wheel remote control switch may have a problem.
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- The radio and CD player may be defective.
- The hands free-ECU may be defective.
- The steering wheel remote control switch may be defective.
- Damaged harness wires and connectors
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Check if the hands free-ECU can be switched to the diagnosis mode. (Refer to <Vehicles with 1CD audio> or <Vehicles with display audio>.)
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Q.
Is the check result normal?
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Perform Inspection Procedure 5 "DIAGNOSIS MODE cannot be made an entry." (Refer to .)
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Check that the radio and CD player can be operated by the steering wheel remote control switch.
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Q.
Is the check result normal?
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Troubleshoot the steering wheel remote control switch.
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Check the continuity of the steering wheel remote control switch. (Refer to .)
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Q.
Is the check result normal?
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Replace the steering wheel remote control switch.
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Q.
Is the check result normal?
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Replace the hands free-ECU.
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Replace the radio and CD player.
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