Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Vehicle Speed Sensor: VSS
The Vehicle Speed Sensor (VSS) is mounted on transaxle case extension housing. VSS produces an AC signal with a frequency proportional to speed at which transaxle assembly output shaft rotates, which is also proportional to vehicle speed. AC signal produced by VSS is amplified and converted by VSS buffer assembly. The AC signal is sent to Powertrain Control Module (PCM), Cruise Control Module (CCM) and speedometer where signal is sent at a rate of 4000 pulses per mile. PCM converts number of pulses per mile to pulses per second to determine speed of vehicle
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.