Inspection/Repair - W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness(es) and terminal condition. 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?






Control Circuit Inspection

Check for short to battery in harness
1. IG OFF.
2. Disconnect Instrument Cluster connector and TPMS ECU connector.
3. IG ON.
4. Measure voltage between tread lamp control terminal of TPMS ECU harness connector and chassis ground.

Specification : Approx. 0V





5. Is the measured value within specifications?





Check for short to ground in harness
1. IG OFF.
2. Disconnect Instrument Cluster connector and TPMS ECU connector.
3. Measure resistance between tread lamp control terminal of TPMS ECU harness connector and chassis ground.

Specification : Infinite





4. Is the measured value within specification?





Check for open in harness
1. IG OFF.
2. Disconnect Instrument Cluster connector and TPMS ECU connector.
3. Measure resistance between tread lamp control terminal of TPMS ECU harness connector and tread lamp control terminal of Instrument Cluster harness connector.

Specification : Approx. 0 Ohms





4. Is the measured value within specification?