Diagnosis Procedure
- GPS antenna check
Visually check GPS antenna and antenna feeder.
Is 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 terminal and ground.
(+) (-) Voltage
(Approx.)AV control unit Terminal 162 Ground 5.0 V
Is inspection result normal?
YES
INSPECTION END
NO
Replace AV control unit. Refer to REMOVAL AND INSTALLATION .