Component Inspection
■ Wheel speed sensor circuit check
1.

Lift the vehicle.

2.

IG "ON".

3.

Turn the wheel by hand.

4.

Measure waveform between signal terminal of the wheel speed sensor harness connector and chassis ground with osciloscope.

Specification :High : 1.4~2.0V, Low : 0.7~1.0V

5.

Is the measured waveform within specifications ?

▶ Fault is intermittent caused by poor connection in wheel speed sensor harness. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and then go to "Verification of Vehicle Repair" procedure.

▶ Check for improper installation of wheel speed sensor. If NG, repair as necessary and then go to "Verification of vehicle Repair" procedure.

▶ Check for damage of rotor teeth or wheel bearing. If NG, repair as necessary and then go to "Verification of vehicle Repair" procedure.

▶ Substitute with a known-good Wheel speed sensor and check for proper operation. If problem is corrected, replace Wheel speed sensor and then go to "Verification of Vehicle Repair" procedure.

Яндекс.Метрика