W/Harness Inspection

P0111 Intake Air Temperature Sensor 1 Circuit Range / Performance

Inspection/Repair - W/Harness Inspection

Terminal and Connector 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?






Signal Circuit Inspection

Check Open or Short in signal circuit
1. IG KEY "OFF".
2. Disconnect IATS connector.
3. IG KEY "ON" & ENG "OFF".
4. Measure voltage between signal terminal of IATS harness connector and chassis ground.

Specification : Approx. 5 V




5. Is the measured voltage within specification?