Vehicle Speed Sensor (VSS) Test
- If speedometer operates, VSS is okay. If speedometer does not operate, disconnect electrical connector from VSS. Remove VSS. Connect battery positive lead to terminal No. 1 and negative lead to terminal No. 2. See Fig 1.
- While rotating gear, measure voltage between terminals No. 2 (negative lead) and No. 3 (positive lead). Replace VSS if voltage does not alternate between zero and 12 volts, 4 times per revolution.