Vehicle Speed Sensor A Range/Performance Problem
The system detected an issue with the vehicle speed sensor readings.
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 reporting values that don't match what the system expects based on other data, like wheel speed or engine RPM.
What the computer is actually seeing
The computer is monitoring the vehicle speed sensor signal. If the signal is too low (below 0.5V) or too high (above 4.5V) for a sustained period, it triggers this code.
What a healthy reading looks like
Vehicle speed sensor should output a voltage between 0.5V and 4.5V when the vehicle is operating; typically near 2.5V when stationary and should vary continuously as vehicle speed changes.
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 loose connections. Is everything intact? If not, repair or replace as necessary.
- 2Using a multimeter, measure the voltage at the vehicle speed sensor connector while the vehicle is in motion. Is it between 0.5V and 4.5V? If no, replace the sensor.
- 3Inspect related components like wheel speed sensors. Are they functioning correctly? If not, fix any issues found.
- 4Connect a scan tool and check for any other logged codes. Are there additional codes present? Address them before concluding this fault.
Common causes
- Faulty vehicle speed sensor
- Wiring issue between the sensor and ECU
- Faulty engine control unit (ECU)
- Issues with wheel speed sensors affecting readings
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable, but you may experience erratic speedometer readings or cruise control issues.
Will this code come back after clearing?
It can return if the underlying issue isn't resolved.
Why does it pair with other codes?
Issues with vehicle speed can affect multiple systems, activating related fault codes.
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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