W/Harness Inspection

Tire Pressure Monitoring
C1240 Second Speed Input Fault - 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?






Signal Circuit Inspection

Check short to ground in harness
1. Ignition "OFF"
2. Disconnect ESC ECU and TPMS ECU harness connector.
3. Measure resistance between Wheel Speed Sig.2 terminal of ESC ECU harness connector and chassis ground.

Specification :Infinity




4. Is the measured value within specifications?





Check for open in harness
1. IG "OFF"
2. Disconnect ESC ECU and TPMS ECU harness connector.
3. Measure resistance between Wheel Speed Sig.2 terminal of ESC ECU harness connector and Wheel Speed Sig.2 terminal of TPMS ECU harness connector.

Specification :Approx. below 1 Ohms




4. Is the measured value within specifications?