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U12AB ANTENNA

DTC Logic


DTC DETECTION LOGIC








Diagnosis Procedure

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

1. GLASS ANTENNA (FM SUB) INSPECTION

Visually inspect the glass antenna (FM sub) 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 GLASS ANTENNA (FM SUB) FEEDER CONTINUITY

1.Disconnect AV control unit connector M93 and inline connector M504.
2.Check continuity between AV control unit connector M93 and inline connector M504.





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





Is the inspection result normal?
YES- GO TO 3
NO- Repair or replace harness or connectors.

3. CHECK AV CONTROL UNIT VOLTAGE

1.Disconnect AV control unit connector M93.
2.Turn ignition switch ON.
3.Check voltage between AV control unit terminal 58 and ground.





Is inspection result normal?
YES- Replace glass antenna (FM sub). Refer to "Removal and Installation" Removal And Installation.
NO- Replace AV control unit. Refer to "Removal and Installation" Without Navigation.