W/Harness Inspection

Signal Circuit Inspection

1. Check for short to ground in signal circuit
(1) IG "OFF".
(2) Disconnect the Power Steering Switch.
(3) IG "ON" & Engine "OFF"
(4) Measure voltage between signal terminal of the Power Steering Switch harness connector and chassis ground.

Specification : Approx. B+





(1) Is voltage within the specification?





2. Check for open or short to battery in signal circuit
(1) IG "OFF".
(2) Disconnect the Power Steering Switch and PCM connector.
(3) IG "ON" & Engine "OFF".
(4) Measure voltage between signal terminal of the power steering switch harness connector and chassis ground.

Specification : Approx. 0V





(1) Is voltage within the specification?






Terminal and connection inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?