Signal Circuit Inspection

1. Disconnect ECM connector.
2. Ignition "ON" and Engine "OFF"
3. Measure voltage between terminal 1 of the sensor harness connector and chassis ground

   Specification : Approx. 0V

4. Is voltage within the specification?

YES 

• Go to next step.

NO 

• Check for short to battery or open in signal harness. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

1. Ignition "OFF"
2. Measure resistance between terminal 1 of the sensor harness connector and 15 of the ECM harness connector

   Specification : Approx. 0Ω

3. Is resistance within the specification?

YES 

• Go to next step as below

NO 

• Check for open in signal harness. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.