W/Harness Inspection

Terminal and Connector Inspection

1. 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.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found ?






Signal Circuit Inspection

1. Check short to battery in harness
(1) IG "OFF".
(2) Disconnect APS and PCM connector.
(3) Measure resistance between terminal 1 and 2 of APS harness connector.
(4) Measure resistance between terminal 2 and 4 of APS harness connector.

Specification : Infinite





(5) Is the measured resistance within specification ?






Ground Circuit inspection

1. Check open in harness
(1) IG "OFF".
(2) Disconnect APS connector.
(3) Measure voltage between terminal 4 of APS harness connector and chassis ground. (Fig. A)
(4) Measure voltage between terminal 4 and 5 of APS harness connector. (Fig. B)

Specification : Fig. "A" - Fig. "B" = approx. below. 200 mV.





(5) Is the measured voltage within specification ?