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.
DTC P0501/16885 - Vehicle Speed Sensor Range/Performance
1996 Audi A4 Base, StandardSECTION DTC P0501/16885 - Vehicle Speed Sensor Range/Performance
NOTE:
DTC is set after engine start when coolant temperature is more than 176°F (80°C) with engine speed between 1300-6000 RPM when Vehicle Speed Sensor (VSS) signal is less than one MPH during a deceleration fuel shut-off. Deceleration fuel shut-off must be longer then 3 seconds.
- Turn ignition off. Disconnect Powertrain Control Mod.
- If voltage tester does not perform as specified, go to next step. If voltage tester performs as specified, circuit is okay. Erase DTC memory and test drive vehicle.
- Using DVOM, check wiring harness between test box socket 13X and VSS, and test box socket C13 and VSS. See WIRING DIAGRAMS section. Repair wiring harness as necessary. If wiring is okay, replace VSS. Perform steps 2) and 3) again. After replacing VSS, if voltage tester does not perform as specified, replace faulty PCM. Erase DTC memory and test drive vehicle.
RENDER: 1.0x
NO RELATED
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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.