Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Has a problem been found ?

	▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure .
	▶ Go to "Power Circuit Inspection" as follow.

IG "OFF" & Disconnect OCV connector.

IG "ON".

Measure voltage between power terminal of OCV harness connector and chassis ground.

Is the measured voltage within specification ?

	▶ Go to "Control Circuit Inspection" procedure.
	▶ Check fuse between Main Relay and OCV is open or not installed. ▶ Check open in power circuit between Main Relay and OCV power circuit. ▶ Check short to ground in power circuit between Main Relay and OCV power circuit. ▶ Repair or replace as necessay go to "Verification of Vehicle Repair" procedure.

IG "OFF" and disconnect OCV and ECM connector.

Measure resistance between control terminal of OCV harness connector and chassis ground.

Is the measured resistance within specification ?

	▶ Go to "Check open in harness" as follows .
	▶ Repair short to ground in OCV control circuit and go to "Verification of Vehicle Repair" procedure.

IG "OFF" and disconnect OCV and ECM connector.

Measure resistance between control terminal of OCV harness connector and OCV control terminal of ECM harness connector.

Is the measured resistance within specification ?

	▶ Go to "Component Inspection" procedure.
	▶ Repair open in OCV control circuit and go to "Verification of Vehicle Repair" procedure.