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Diagnosis Procedure
1.CHECK ILLUMINATION CONTROL SWITCH SIGNAL CIRCUIT
  1. Turn ignition switch OFF.
  2. Disconnect combination illumination connector and meter control switch connector.
  3. Check continuity between combination meter harness connector and illumination control switch harness connector.
    TerminalsContinuity
    Combination meterIllumination control switch
    ConnectorTerminalConnectorTerminal
    M7725M36Existed
    317
    324
  4. Check continuity between combination meter harness connector and ground.
    Combination meterGroundContinuity
    ConnectorTerminal
    M7725Not existed
    31
    32
Is the inspection result normal?
Repair harness or connector.
 
2.CHECK ILLUMINATION CONTROL SWITCH
Check illumination control switch. Refer to Component Inspection.
Is the inspection result normal?
Replace combination meter. Refer to Removal and Installation.
Replace illumination control switch. Refer to Removal and InstallationRemoval and Installation.