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Diagnosis Procedure
1.CHECK IGNITION RELAY-1 CONTROL SIGNAL VOLTAGE
  1. Ignition switch OFF.
  2. Disconnect BCM connector.
  3. Check voltage between BCM harness connector and ground.
    +-Voltage
    BCM
    ConnectorTerminal
    E29105Ground9 – 16 V
Is the inspection result normal?
Replace BCM. Refer to Removal and Installation.
 
2.CHECK IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT (OPEN)
  1. Remove ignition relay-1.
  2. Check continuity between BCM harness connector and fuse block (J/B) terminal.
    BCMFuse block (J/B)Continuity
    ConnectorTerminalTerminal
    E29105Ignition relay-1 coil downstream sideExisted
Is the inspection result normal?
Repair the harness or connector.
 
3.CHECK IGNITION RELAY-1 CONTROL SIGNAL CIRCUIT (SHORT TO GROUND)
Check continuity between BCM harness connector and ground.
BCM—Continuity
ConnectorTerminal
E29105GroundNot existed
Is the inspection result normal?
Repair the harness or connector.
 
4.CHECK IGNITION RELAY-1
Check ignition relay-1. Refer to Component Inspection.
Is the inspection result normal?
INSPECTION END
Replace ignition relay-1.