P0500 – Vehicle speed signal malfunction

P0500 describes a problem with the vehicle-speed signal. The common label “Vehicle Speed Sensor” does not mean every vehicle has one dedicated sensor in the same location.

Powertrain · Vehicle speed

Open this code in the decoder

Meaning and affected system

Depending on the design, the engine or transmission controller receives speed from a dedicated sensor or another control module. Ford documents both sensor checks and speed information from the ABS system. Identifying the signal source is therefore an essential first distinction.

Possible causes

A faulty sensor signal is possible where that sensor arrangement is used.
Wiring, connections and communication between modules may need investigation.
P0500 does not identify one particular wheel sensor or control module as faulty.

Possible symptoms

Whether the speed display or driving behaviour is affected depends on how the signal is used.
The stored code alone cannot establish a specific failure of braking or stability-control functions.

Useful diagnostic considerations

Identify the speed source and signal route using vehicle documentation.
Have speed readings and accompanying codes compared across the relevant modules.
Follow the handbook if the speed display is unreliable or additional chassis warnings appear.

What this code does not prove

P0500 is not interchangeable with a specific ABS wheel-speed code. A basic OBD scanner may not provide enough information from the modules involved.

Look up another fault code

Sources and interpretation

This explanation was editorially cross-checked against the technical sources below. Manufacturer documents concern particular vehicle applications; their thresholds and repair procedures must not be applied universally.

Ford: 2013 MY OBD System Operation Summary for Gasoline Engines

OBD-II code data: OBDex (CC0 1.0) · 196fddffb6ef

Editorial source review: 16 October 2026.

The causes listed are possibilities without a likelihood ranking. This page cannot replace diagnosis of the vehicle. A code alone confirms neither a failed component nor that continuing to drive is safe. The actual condition, warnings, handbook and applicable manufacturer diagnostics determine the next step.