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Diagnosis Procedure
1.CHECK COMBINATION METER POWER SUPPLY AND GROUND CIRCUIT
Check combination meter power supply and ground circuit.
Full TFT meter: Refer to Diagnosis Procedure.
Is the inspection result normal?
.
Repair or replace malfunctioning parts.
 
2.CHECK AV COMMUNICATION CIRCUIT
  1. Turn electric motor switch OFF.
  2. Disconnect connector of the following unit.
    • AV control unit
    • Combination meter
    • TCU
    • Head up display unit
  3. Check the continuity between AV control unit harness connector and combination meter harness connector.
    AV control unitCombination meterContinuity
    ConnectorTerminalConnectorTerminal
    M102*1
    M124*2
    		22M7740Existed
    23
    4239
    43
    *1: Without BOSE
    *2: With BOSE
Is the inspection result normal?
Replace combination meter. Full TFT meter: Refer to Removal and Installation.
Repair or replace malfunctioning parts.