Control Circuit Inspection

Check for Short to Ground in Control Circuit

1. Ignition "OFF".
2. Disconnect ECM connector.
3. Measure resistance between terminals 2 of the PCSV harness connector and 42 of the ECM harness connector.
   1. Specification: Approx. 0Ω
      Fig 1: Measuring Resistance Between Terminals 2 Of PCSV Harness Connector And 42 Of ECM Harness Connector

      
4. Is resistance within the specification?

   YES

   1. Go to next step as below.

   NO

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

Check for Short to Battery in Control Circuit

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

      
3. Is voltage within the specification?

   YES

   1. Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

   NO

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