W/Harness Inspection

ESP (CTC)
C1200 Wheel Speed Sensor Front-LH Open/Short - 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

1. Ignition "ON" & Engine "OFF".
2. Measure voltage between Signal terminal of the wheel speed sensor harness connector and chassis ground.

Specification : Approx. B+




3. Is the measured value within specifications?






Ground Circuit Inspection

Check for open in harness
1. IG "OFF"
2. Disconnect wheel speed sensor connector and HECU connector.
3. Measure resistance between ground terminal of wheel speed sensor harness connector and ground terminal of HECU harness connector.

Specification : Below approx. 1 Ohms




4. Is the measured value within specifications?





Check for short in harness
1. IG "OFF"
2. Disconnect wheel speed sensor connector and HECU connector.
3. Measure resistance between ground terminal of wheel speed sensor harness connector and chassis ground.

Specification : Infinite




4. Is the measured value within specifications?