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Diagnosis Procedure
1.CHECK FUSE
Check if the fuse is burned out.
Power supplyFuse No.
BAT17
Is the check result normal?
Replace the fuse after repairing the applicable circuit.
 
2.CHECK BATTERY VOLTAGE
Check the voltage between the TCU harness connector and ground.
SignalTCUConditionStandardReference value
ConnectorTerminal
(+) (-) Ignition switch
BATM351GroundOFF9.0 – 16.0 VBattery Voltage
Is the inspection result normal?
Repair harness between TCU and fuse.
 
3.GROUND CIRCUIT INSPECTION
  1. Turn ignition switch OFF.
  2. Disconnect TCU harness connector.
  3. Check the continuity between TCU harness connector and ground.
    SignalTCUGroundConditionContinuity
    ConnectorTerminalIgnition switch
    GroundM3528OFFExisted
    29
Is the check result normal?
INSPECTION END
Repair the harnesses or connectors.