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 all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.

Has a problem been found?

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

Ignition switch "OFF"

Refer to "Shop Manual" and remove starter relay.

Ignition switch "ON"

Measure the voltage between coil power terminal of starter relay harness connector and chassis ground.

Is the measured value within specificaiton?

	▶ Go to "Control Circuit Inspection" procedure.
	▶ Inspect and repair open or short in circuit, and then go to "Verification of Vehicle Repair" procedure.

Ignition switch "OFF"

Refer to "Shop Manual" and remove starter relay.

Ignition switch "ON"

Measure the voltage between control high terminal of starter relay harness connector and chassis ground.

Measure the voltage between control low terminal of starter relay harness connector and chassis ground.

Is the measured value within specificaiton?

	▶ Go to "Component Inspection" procedure.
	▶ Inspect and repair open or short in circuit, and then go to "Verification of Vehicle Repair" procedure.