Inspection/Repair - 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 relay.
2. IG "ON"
3. Measure voltage between battery power supply terminals of A/C relay 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 relay.
2. IG "ON"
3. Measure voltage between control terminal of A/C relay harness and chassis ground.

Specification : Approx. 2.5V





4. Is the measured voltage within specification ?