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" procedure.

IG "OFF" and disconnect ETC Motor & TPS connector.

IG "ON".

Measure voltage between TPS1 power terminal of ETC Motor & TPS harness connector and chassis ground.

Is the measured voltage within specification ?

	▶ Go to "Signal circuit inspection" procedure.
	▶ Check for Open or Short to ground in Power circuit. Repair as necessary and then go to "Verification of Vehicle Repair" procedure.

IG "OFF" and disconnect ETC Motor & TPS connector and ECM connector.

Measure resistance between TPS1 signal terminal of ETC Motor & TPS harness connector and chassis ground.(Measurement "A")

Measure resistance between TPS1 signal and ground terminals of ETC Motor & TPS harness connector.(Measurement "B")

Is the measured voltage within specification ?

	▶ Go to "Component inspection" procedure.
	▶ Repair Short to ground in signal circuit and go to "Verification of Vehicle Repair" procedure.