Diagnosis Procedure
1.
CHECK ANTENNA CONNECTOR
Turn ignition switch OFF.
Visually inspect radio antenna, antenna feeder and antenna connector.
Is the inspection result normal?
.
Repair or replace malfunctioning parts.
2.
CHECK ANTENNA CIRCUIT CONTINUITY
Disconnect AV control unit harness connector and antenna base harness connector.
Check continuity between AV control unit harness connector and ground.
Without BOSE
AV control unit
Ground
Continuity
Connector
Terminal
M183
83
Not existed
With BOSE
AV control unit
Ground
Continuity
Connector
Terminal
M142
83
Not existed
Is the inspection result normal?
Replace roof antenna. Refer to
Removal and Installation
.
Repair or replace malfunctioning parts.