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Diagnosis Procedure
1.CHECK FUSE
  1. Ignition switch OFF.
  2. Check that the following fuse is not blown (open).
    UnitLocationFuse No.Capacity
    BCMFuse block (J/B) #155A
    #30
Is the fuse blown (open)?
Replace the blown (open) fuse after repairing the affected circuit if a fuse is blown (open).
.
 
2.CHECK POWER SUPPLY CIRCUIT
  1. Disconnect BCM connectors.
  2. Check voltage between BCM harness connector and ground.
    +−Voltage
    BCM
    ConnectorTerminal
    M187Ground9 – 16 V
    B23133
Is the inspection result normal?
Repair harness or connector.
 
3.CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
BCM—Continuity
ConnectorTerminal
B23129GroundExisted
137
Is the inspection result normal?
INSPECTION END
Repair harness or connector.