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.
1995 Acura 2.5TLFACTORY OEM SERVICE PROCEDURE
Code P0500 - Vehicle Speed Sensor (VSS)
- Connect and operate scan tester, following manufacturer's instructions. Test-drive vehicle. Read vehicle speed. If scan tester does not indicate correct speed, go to next step. If scan tester indicates correct speed, problem is intermittent. Inspect for poor connections or loose wires associated with VSS sensor, then repair as necessary.
- Turn ignition off. Block rear wheels. Set parking brake. Raise and support front of vehicle. Turn ignition on. Block right front wheel. Slowly rotate left front wheel while measuring voltage between 26-pin ECM connector terminal 26 (Brown/Black wire) and ECM 16-pin ECM connector terminal No. 13 (Orange wire).
- If voltage does not pulse from zero to 5 volts, go to next step. If voltage pulses from zero to 5 volts, temporarily substitute known good ECM, then retest system.
- Inspect for open or short in Orange wire between ECM and VSS. Repair as necessary. If wire is okay, replace VSS.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.