Auto. Trans. Models
- Jack up and support the front of vehicle. Push the voltmeter or test light positive probe into the Yellow/Black wire terminal at the control unit connector.
- Connect the negative probe to ground. Start engine. Place vehicle in second position (gear selector in 2 position) and accelerate slowly. Voltage should be as shown in table.
SPEED SENSOR VOLTAGE CHECK
| Application | Speed | Voltage |
|---|---|---|
| Man. Trans. | Below 6 MPH | Yes |
| Man. Trans. | Above 12 MPH | No |
| Auto. Trans. | Below 11 MPH | Yes |
| Auto. Trans. | Above 16 MPH | No |