Control Circuit Inspection

Check for short to ground in harness.
1. Ignition "OFF".
2. Disconnect EGR Sol. Valve connector.
3. Measure resistance between terminal "1" of EGR Sol. Valve harness connector and chassis ground.
  Specification: Infinite
  
  Fig 1: Measuring Resistance Between Terminal 1 Of EGR Sol. Valve Harness Connector And Chassis Ground
4. Is the measured resistance within specifications?
  YES
  - Go to " 2 Check for open in harness" as below.
  NO
  - Check short to ground in signal harness.
  - Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for open in harness.
1. Ignition "OFF".
2. Disconnect EGR Sol. Valve and PCM connector.
3. Measure resistance between terminal "1" of EGR Sol. Valve harness connector and terminal "6/C44-1" of PCM harness connector.
  Specification: Approx. below 1Ω
  
  Fig 2: Measuring Resistance Between Terminal 1 Of EGR Sol. Valve And Terminal 6/C44-1 Of PCM Harness Connector
4. Is the measured resistance within specifications?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Check open in harness between EGR Sol. Valve connector and PCM connector.
  - Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.