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U1264 ANTENNA AMP.

DTC Logic


DTC DETECTION LOGIC








Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Without Navigation.

1. ANTENNA AMP. INSPECTION

Visually inspect the antenna amp. and antenna feeder. Refer to "Location of Antenna" Without Navigation.
Is inspection result normal?
YES- GO TO 2.
NO- Repair or replace malfunctioning components.

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

1.Turn ignition switch OFF.
2.Disconnect AV control unit connector M93 and antenna amp. connector M502.
3.Check continuity between AV control unit connector M93 and antenna amp. connector M502.





4.Check continuity between AV control unit connector M93 and ground.





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

3. CHECK AV CONTROL UNIT VOLTAGE

1.Connect AV control unit connector M93.
2.Turn ignition switch ON.
3.Check voltage between AV control unit connector M93 and ground.





Is the inspection result normal?
YES- Replace antenna amp. Refer to "Removal and Installation" Without Navigation.
NO- Replace AV control unit. Refer to "Removal and Installation" Without Navigation.