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Diagnosis Procedure
1.CHECK HARNESS AND CONNECTOR INSTALLATION CONDITION
Check harness connector installation condition of the following items.
  • ECM
  • EGR volume control valve
Is the inspection result normal?
.
Repair or replace error-detected parts.
 
2.CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-1
  1. Turn ignition switch OFF.
  2. Disconnect ECM harness connector and EGR volume control valve harness connector.
  3. Check the continuity between ECM harness connector and EGR volume control valve harness connector.
    ECMEGR volume control valveContinuity
    ConnectorTerminalConnectorTerminal
    F5113F816Existed
    145
  4. Also check harness for short to power and short to ground.
Is the inspection result normal?
.
Repair or replace error-detected parts.
 
3.CHECK EGR VOLUME CONTROL VALVE POWER SUPPLY CIRCUIT-2
  1. Check the continuity between ECM harness connector and EGR volume control valve harness connector.
    ECMEGR volume control valveContinuity
    ConnectorTerminalConnectorTerminal
    F52116F811Existed
  2. Also check harness for short to power and short to ground.
Is the inspection result normal?
.
Repair or replace error-detected parts.
 
4.CHECK EGR VOLUME CONTROL VALVE
Check the EGR volume control valve. Refer to Component InspectionComponent Inspection (EGR Volume Control Valve).
Is the inspection result normal?
Check intermittent incident. Refer to Intermittent IncidentIntermittent Incident.
Replace EGR volume control valve.