Vehicle Speed Sensor: Testing and Inspection

INSPECTION








Harness Inspection Procedure





1. Check the Vehicle Speed Sensor output circuit for continuity.
- Engine Control Module connector disconnected.
- Move the vehicle.

If OK - END.
If not OK - go to step 2.





2. Measure the power supply voltage of the Vehicle Speed Sensor.
- Connector disconnected.
- Ignition Switch ON.
- Voltage should read 4.5 - 4.9 volts.

If OK - go to step 3.
If not OK - Repair the harness (H 2 - C50-5 18)





3. Check for continuity of the ground circuit.
- Connector disconnected, Repair the harness (H 1-Ground)

If OK - END.
If not OK - Repair the harness (H 1-Ground)

Troubleshooting Hints
If there is an open or short circuit in the Vehicle Speed Sensor signal circuit, the engine may stall when the vehicle is decelerated to stop.