Operation CHARM: Car repair manuals for everyone.

U1264




U1264 ANTENNA AMP.

DTC Logic








COUPE : Diagnosis Procedure


1. CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND ANTENNA AMP.

1.Turn ignition switch OFF.
2.Disconnect antenna amp. connector and AV control unit connector.
3.Check continuity between AV control unit harness connector and antenna amp. harness connector.





4.Check continuity between AV control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair harness or connector.

2. CHECK VOLTAGE AV CONTROL UNIT

1.Connect AV control unit connector.
2.Turn ignition switch ON.
3.Check voltage between AV control unit harness connector and ground.





Is the inspection result normal?
YES- Replace antenna amp. With Navigation.
NO- Replace AV control unit. Removal And Installation.


ROADSTER : Diagnosis Procedure


1. CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND ANTENNA BASE

1.Turn ignition switch OFF.
2.Disconnect antenna base connector and AV control unit connector.
3.Check continuity between AV control unit harness connector and antenna base harness connector.





4.Check continuity between AV control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair harness or connector.

2. CHECK VOLTAGE AV CONTROL UNIT

1.Connect AV control unit connector.
2.Turn ignition switch ON.
3.Check voltage between AV control unit harness connector and ground.





Is the inspection result normal?
YES- Replace antenna base With Navigation .
NO- Replace AV control unit. Removal And Installation.