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 APS connector.

IG "ON".

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

Is the measured voltage within specification?

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

IG "OFF" and disconnect APS connector.

IG "ON".

Measure voltage between signal terminal of APS harness connector and chassis ground.

Measure resistance between APS signal terminal of APS harness connector and chassis ground.(Measurement "A")

Measure resistance between APS signal and ground terminals of APS harness connector.(Measurement "B")

Is the measured voltage&resistance within specification?

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

IG "OFF" and disconnect APS connector.

IG "ON".

Measure the voltage between power terminal of APS harness connector and chassis ground.(A)

Measure the voltage between power and ground terminal of APS harness connector.(B)

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.