Control Circuit Inspection

Check for short to ground in harness.
1. Ignition "OFF".
2. Disconnect CCV connector and PCM connector.
3. Measure resistance between terminal "1" of CCV harness connector and chassis ground.
  1. Specification: Infinite
    
    Fig 1: Measuring Resistance Between Terminal 1 Of CCV Harness Connector And Chassis Ground
4. Is the measured resistance within specifications?
  YES
  - Go to " 2 Check for short to battery 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 short to battery in harness.
1. Ignition "OFF".
2. Disconnect CCV connector and PCM connector.
3. Measure resistance between terminals "1" and "2" of CCV harness connector.
  1. Specification: Infinite
    
    Fig 2: Measuring Resistance Between Terminals 1 And 2 Of CCV Harness Connector
4. Is the measured resistance within specification?
  YES
  - Go to " 3 Check for open in harness" as below.
  NO
  - Check for short to battery in harness between CCV connector and PCM connector.
  - Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check for open in harness.
1. Ignition "OFF".
2. Disconnect CCV and PCM connector.
3. Measure resistance between terminal "1" of CCV harness connector and terminal "35" of PCM harness connector.
  1. Specification: Approx. below 1Ω
    
    Fig 3: Measuring Resistance Between Terminal 1 Of CCV Harness Connector And Terminal 35 Of PCM Harness Connector
4. Is the measured resistance within specifications?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Check open in harness between CCV connector and PCM connector.
  - Repair or replace as necessary. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.