Speed Sensor
- Raise and support front of vehicle. Set parking brake and block rear wheels. Back probe voltmeter or test light positive probe into Yellow/Black wire terminal at control unit connector.
- Connect the negative probe to ground. Start engine. Place vehicle in second position (gear selector in 2 position) and accelerate slowly. Battery voltage should be as shown in SPEED SENSOR VOLTAGE CHECK table.SPEED SENSOR VOLTAGE CHECK
Speed Voltage Below 11 MPH Yes Above 16 MPH No - If voltmeter readings do not correspond to above MPH ranges, install a new speed sensor and retest. If there was no voltage during step 2), check for bad electrical connection, fuse or faulty speed sensor. Replace or repair as necessary and retest.