U1264

U1264 ANTENNA AMP.





DTC Logic









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. With Navigation.