Vehicle Speed Sensor Circuit Range/Performance Problem
There's a problem with the vehicle speed sensor signal accuracy.
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's computer is not getting a proper reading from the speed sensor, which usually tells it how fast the vehicle is going. This might be because of a bad sensor, a wiring issue, or a bad connection.
What the computer is actually seeing
The computer expects a voltage signal from the vehicle speed sensor (typically 0 to 5 volts) that changes accurately with vehicle speed. If the sensor signal is outside of expected parameters, it triggers this code.
What a healthy reading looks like
A properly functioning speed sensor should output a voltage signal proportional to vehicle speed, generally between 0.1 volts (not moving) to about 4.5 volts (maximum speed).
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.
- 11. Inspect the vehicle speed sensor and its wiring for damage. If damaged, repair or replace as necessary.
- 22. Check the connector for corrosion or loose pins. If any issues are found, clean or reconnect securely.
- 33. Test the output voltage of the vehicle speed sensor while the vehicle is in motion. Expected range is 0.1-4.5 volts. If out of range, replace the sensor.
- 44. If there's still a code after replacing the sensor, check for proper ground and power supply to the sensor. Repair any issues found.
- 55. If all wiring and components are good, consider the possibility of a faulty PCM. Use a scan tool to check for other related codes.
Common causes
- Faulty vehicle speed sensor
- Damaged wiring or connectors between sensor and PCM
- Issues with the PCM itself
- Corroded contacts or poor grounds
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally drivable, but the vehicle's speed reading may be unreliable, which can affect ABS and traction control systems.
Will this code come back after clearing it?
If the issue isn't resolved, yes, the code will likely return after driving the vehicle.
Why might this code pair with another one?
Multiple codes can indicate that multiple systems rely on the same sensor, or they can point to a common wiring issue affecting several components.
Working a real vehicle right now?
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