Vehicle Speed Sensor: Testing and Inspection

VEHICLE SPEED SENSOR (VSS)
The vehicle speed sensor is a reed switch. The vehicle speed sensor is built into the speedometer and converts the transaxle gear revolutions into pulse signals, which are sent to ECM.




CIRCUIT DIAGRAM










HARNESS INSPECTION PROCEDURES




TROUBLESHOOTING PROCEDURES

HINT: 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 a stop.