Control Circuit Inspection

Check for Short to Ground in Control Circuit

1. Ignition "OFF"
2. Measure resistance between terminal 1 of the CCV harness connector and 20 of the ECM harness connector
   1. Specification: Approx. 0Ω
      Fig 1: Measuring Resistance Between Terminal 1 Of CCV Harness Connector And 20 Of ECM Harness Connector

      
3. Is resistance within specification?

   YES

   1. Go to the next step.

   NO

   1. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure

Check for Short to Battery in Control Circuit

1. Ignition "OFF"
2. Disconnect ECM connector
3. Ignition "ON" & Engine "OFF"
4. Measure voltage between terminal 1 of the CCV harness connector and chassis ground
   1. Specification: Approx. 0V
      Fig 2: Measuring Voltage Between Terminal 1 Of CCV Harness Connector And Chassis Ground

      
5. Is voltage within the specification?

   YES

   1. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure

   NO

   1. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.