U1244
U1244 GPS ANTENNA
DTC Logic
Diagnosis Procedure
1.GPS ANTENNA CHECK
Visually check GPS antenna and antenna feeder.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair malfunctioning parts.
2.CHECK AV CONTROL UNIT VOLTAGE
1. Disconnect GPS antenna connector.
2. Turn ignition switch ON.
3. Check voltage between AV control unit and ground.
Is the inspection result normal?
YES - INSPECTION END
NO - Replace AV control unit. Exploded View Bose Audio With Navigation.