Diagnosis Procedure
- GPS ANTENNA CHECK
Visually check GPS antenna and antenna feeder.
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
Repair malfunctioning parts.
- CHECK AV CONTROL UNIT VOLTAGE
- Disconnect GPS antenna connector.
- Turn ignition switch ON.
- Check voltage between AV control unit and ground.
(+) (-) Voltage
(Approx.)AV control unit Terminal 153 Ground 5.0 V
Is the inspection result normal?
YES
INSPECTION END
NO
Replace AV control unit. Refer to REMOVAL AND INSTALLATION .