W/Harness Inspection

Control Circuit Inspection

1. Ignition "ON" & Engine "OFF"
2. Measure voltage between terminal 1 of the oil control valve harness connector and chassis ground.
A. Specification : Approx. 3 - 4V





CAUTION: Signal waveform in control circuit with ignition ON & Engine OFF

3. Is voltage within the specification ?
YES
1) Go to "Terminal and Connector Inspection" procedure.
NO
1) Repair short to ground in control circuit and go to "Verification of Vehicle Repair" procedure.

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found ?
YES
1) Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
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