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 ?
YES
> Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
> Go to "Power Circuit Inspection" procedure.

Power Supply Circuit Inspection

Check voltage
1. IG "OFF" and disconnect ETC Motor & TPS connector.
2. IG "ON" and ENG "OFF"
3. Measure voltage between TPS1 power terminal of ETC Motor & TPS harness connector and chassis ground.
A. Specification : Approx. 5V




4. Is the measured voltage within specification ?
YES
> Go to "Signal circuit inspection" procedure.
NO
> Repair open or short to ground in power harness, and go to "Verification of Vehicle Repair" procedure.

Signal Circuit Inspection

Check short to ground in harness
1. IG "OFF" and disconnect ETC Motor & TPS connector and PCM connector.
2. Measure resistance between TPS1 signal terminal of ETC Motor & TPS harness connector and chassis ground. (Measurement "A")
3. Measure resistance between TPS1 signal and TPS1 (2) ground terminals of ETC Motor & TPS harness connector. (Measurement "B")
A. Specification : Infinite








4. Is the measured resistance within specification ?
YES
1) Go to "Component Inspection" procedure.
NO
1) Repair short to ground in harness, and go to "Verification of Vehicle Repair" procedure.