P0501 - Vehicle Speed Sensor Range/Performance

OBD-II Trouble Code Technical Description

Vehicle Speed Sensor Range/Performance

What does that mean?

Basically this means that the vehicle's speed as read by the Vehicle Speed Sensor (VSS) is not working properly.

Potential Symptoms

This code is different from the P0500 code in the fact that it may not trigger the malfunction indicator light (MIL). Potential symptoms are basically the same as the P0500 VSS code:

• loss of anti-lock brakes
• the "anti-lock" or "brake" warning lamps on the dash may be lit
• the speedometer or odometer may not work properly (or at all)
• your vehicle's RPM limiter may be decreased
• the shifting of an automatic transmission may become erratic
• other symptoms may also be present

Causes

A P0501 DTC trouble code may be caused by one or more of the following:

• The Vehicle Speed Sensor (VSS) is not reading (functioning) properly
• There is a broken/frayed wire leading to the vehicle speed sensor
• The vehicle's PCM is not correctly configured for the actual tire size on the vehicle

Possible Solutions

The simplest thing to do is to reset the code and see if it comes back.

Next, check all wiring and connectors that lead to the speed sensor. The location of the sensor depends on your vehicle. The sensor could be on the rear axle, transmission, or perhaps the wheel hub (brake) assembly.

If the wiring and connectors are OK, then check the voltage at the speed sensor. Again, the exact procedure wil depend on your make and model of vehicle.

If everything looks OK, replace the sensor.

Further Reading

• Vehicle Speed Sensor (VSS) Description and Operation

Other related VSS DTCs: P0500 - P0502 - P0503

Need more help?

If you still need help regarding the P0501 trouble code, please post your question in our auto repair forums.

NOTE: This information is presented for information purposes only. It is not intended as repair advice and we are not responsible for any actions you take on any vehicle. All information on this site is copyright protected. If you want to share this article or information with others, please link to this page, don't copy and paste it elsewhere.