Bose W/ Color W/ Navi W/Rear Control
U1244 GPS ANTENNA
DTC Logic
Diagnosis Procedure
Regarding Wiring Diagram information, Bose W/ Color Display W/ Navigation.
1.GPS ANTENNA CHECK
Inspect GPS antenna and antenna feeder for damage or poor connection.
Is the GPS antenna and feeder clean and undamaged?
YES - GO TO 2.
NO - Repair or replace malfunctioning parts.
2.CHECK AV CONTROL UNIT VOLTAGE
1. Turn ignition switch ON.
2. Check voltage between AV control unit connector M145 terminal 105 and ground.
Is the voltage reading as specified?
YES - Replace GPS antenna. Bose W/ Color Display.
NO - Replace AV control unit. Bose W/ Color Display W/ Navi.