Vehicle Speed Sensor Failure
The vehicle speed sensor has detected a fault.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The vehicle speed sensor is supposed to give a reading of how fast the vehicle is moving. If it's malfunctioning, it can't provide that information to the engine control unit (ECU), which can affect how the vehicle operates.
What the computer is actually seeing
The ECU expects a vehicle speed signal in the range of 0 to 160 km/h (0 to 100 mph). If it sees zero speed when the vehicle is actually moving, it triggers this fault code.
What a healthy reading looks like
The expected signal from the vehicle speed sensor should vary between 0 volts (0 km/h) to 5 volts (up to 160 km/h).
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check the vehicle speed sensor wiring for any visible damage or corrosion.
- 2Ensure the connectors at both the sensor and the ECU are clean and tight.
- 3Measure the voltage at the speed sensor while the vehicle is moving; expect between 0.5 to 4.5 volts if it's functioning properly.
- 4If voltage is present but the code persists, replace the vehicle speed sensor and retest.
Common causes
- Wiring or connector issue between the speed sensor and the ECU
- Faulty vehicle speed sensor
- Fault in the ECU affecting signal processing
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable, but you could experience erratic shifting and inaccurate speed readings.
Will this code come back after erasing it?
If the underlying issue isn't fixed, it will likely reappear after driving.
Why does this code affect my transmission performance?
The ECU uses speed data to manage shifting and engine performance; without correct speed data, it can shift improperly.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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