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If the diagnosis mode cannot be made an entry, the hands free-ECU, the communication between the hands free-ECU and the multivision display, or the power supply system of hands free-ECU may have a problem.
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- The hands free-ECU may be defective.
- The multivision display may be defective.
- Damaged harness wires and connectors
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Check if the multivision display work normally and the sound is output.
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Q.
Is the check result normal?
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Troubleshoot the multivision display. (Refer to .)
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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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Perform the Inspection procedure 1 "Check the hands free-ECU power supply circuit." of the troubleshooting. (Refer to .)
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Q.
Is the check result normal?
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Repair according to the troubleshooting for reference.
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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 multivision display.
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