Diagnosis Procedure
1.
CHECK TEL VOICE SIGNAL CIRCUIT
Turn ignition switch OFF.
Disconnect AV control unit and TCU harness connector.
Check the continuity between AV control unit harness connector and TCU harness connector.
AV control unit
TCU
Continuity
Connector
Terminal
Connector
Terminal
M102
*1
M124
*2
32
M35
31
Existed
52
32
*1: Without BOSE
*2: With BOSE
Is the inspection result normal?
Replace AV control unit. Refer to
Removal and Installation
.
Repair or replace harness or connector.
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Replace AV control unit. Refer to Removal and Installation
.
Repair or replace harness or connector.