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If the sound replay is impossible with the USB mode, the USB adapter, USB cable, hands free-ECU, or radio and CD player may be defective, or a communication error between the radio and CD player and hands free-ECU may have occurred.
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- The radio and CD player may be defective.
- The hands free-ECU may be defective.
- The USB adapter may be defective.
- The USB cable may be defective.
- Damaged harness wires and connectors
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Check if the radio and CD player normally and the sound is output.
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Q.
Is the check result normal?
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Troubleshoot the radio and CD player. (Refer to .)
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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 continuity exists between the front side terminals of USB adapter and rear side terminals of USB adapter. (Refer to .)
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Q.
Is the check result normal?
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Check that the USB cable is connected to the USB adapter or hands free-ECU normally. Or check the USB cable for damage such as bend.
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Q.
Is the check result normal?
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Replace or repair the USB cable.
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Q.
Is the check result normal?
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Repair the connector(s) or wiring harness.
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Replace the hands free-ECU temporarily, and check that the sound is output from the speaker.
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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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