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 ?






Power Circuit Inspection

Check voltage
1. IG "OFF" and disconnect A/C Control Module connector.
2. IG "ON"
3. Measure voltage between battery power supply terminals of A/C Control Module harness connector and chassis ground.

Specification : Approx. B+





4. Is the measured voltage within specification ?






Control Circuit Inspection

Check Short to Ground in harness
1. IG "OFF" and disconnect A/C Control Module connector.
2. IG "ON"
3. Measure voltage between battery A/C COMP. cut signal terminals of A/C Control Module harness connector and chassis ground.

Specification : Approx. 0V





4. Is the measured voltage within specification ?