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.

Have any problems been found?

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

IG "OFF" and disconnect RCV connector.

IG "ON".

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

Is the measured voltage within specification?

	▶ Go to "Control Circuit Inspection" procedure.
	▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedue.

IG "OFF" & Disconnect RCV connector.

IG "ON".

Measure voltage between control terminal of RCV harness connector and chassis ground.

IG "OFF" and disconnect RCV, ECM connector.

Measure the resistance between both ends of the RCV control harness.

IG "OFF" and disconnect RCV, ECM connector.

Measure the resistance between RCV control terminal and chassis ground.

Is the measured voltage within specification?

	▶ Go to "Component Inspection" procedure.
	▶ Repair or replace as necessary and then, go to "Verification of Vehicle Repair" procedue.