FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Vehicle Speed Sensor: Testing and Inspection




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 (Step 1 - 3):






Troubleshooting Procedures:






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 a stop.