P0500 Vehicle speed sensor A circuit
What P0500 means
The engine computer uses the vehicle speed signal for idle control, cruise control, gear shifting and the speedometer. P0500 means the signal is missing, erratic or implausible. Depending on the car, it comes from a sensor on the gearbox or from the ABS wheel speed sensors.
P0500 is a generic SAE J2012 code: it means the same on every make. The exact cause still depends on the car, so read the freeze-frame data before replacing parts.
At a glance
- Severity
- Medium
- Typical repair cost
- 60–250 €
- Workshop time
- 0.5–3 h
- Repair difficulty
- Medium
- DIY possible
- Yes
- Check engine light
- Yes
- Affects emissions test
- Yes
Parts and labour at an independent workshop in Europe. Main dealers charge more; the cause decides the bill, not the code.
Symptoms
- Speedometer not working or jumping
- Harsh, late or erratic shifts in automatic gearboxes
- Cruise control not working
- ABS or traction control warning on some cars
Common causes
- Faulty vehicle speed sensor on the gearbox
- Damaged wiring or corroded connector at the sensor
- Faulty ABS wheel speed sensor or damaged tone ring where speed comes from ABS
- Instrument cluster or ABS module not passing the speed signal on
- Worn sensor drive gear on older gearboxes
Can I keep driving with P0500?
You can drive with care, but have it fixed within a week. Automatic gearboxes may shift badly without this signal, and the speedometer may not be reliable.
What to check first
- Check whether the speedometer works and whether ABS codes are also stored
- Inspect the speed sensor connector and wiring for damage or corrosion
- Compare wheel speed and vehicle speed in live data while driving to find which signal drops out
- Replace the faulty sensor; check the tone ring or drive gear if the new sensor does not cure it
Related codes
- P0501 Vehicle speed sensor A range/performance
- P0502 Vehicle speed sensor A circuit low
- P0503 Vehicle speed sensor A intermittent/erratic/high
- P0504 Brake switch A/B correlation
- P0505 Idle air control system
- P0506 Idle control system RPM lower than expected
- P0507 Idle control system RPM higher than expected
- P0510 Closed throttle position switch
Data: TORKO fault-code catalogue, built on OBDex (CC0-1.0) and reviewed against workshop practice. Informational only — it does not replace a diagnosis by a mechanic.
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