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 " Signal Circuit Inspection " procedure.

IG KEY "OFF".

Disconnect MAPS connector.

IG KEY "ON" & ENG "OFF"

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

Is the measured voltage within specification ?

	▶ Go to "Ground Circuit Inspection" procedure.
	▶ Repair short to battery in signal circuit and go to "Verification of Vehicle Repair" procedure.

IG KEY "OFF".

Disconnect MAPS connector.

Measure the resistance between sensor terminal of MAPS harness connector and chassis ground.

Is the measured resistance within specification ?

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