This code usually needs a check soon to find out what is wrong.
Trouble codes · P0500
P0500 meaning
Vehicle Speed Sensor A Circuit
The same first verdict Car Assist shows from this code alone, before a diagnosis. The code does not tell the app whether the warning light is flashing.
What this code doesn’t tell you
A code says where the car noticed a problem. It does not prove which part failed, whether the fault is still present, or what repair this car needs. The engine, other codes, freeze frame and live readings matter.
Usual causes, most likely first
The order is a starting point across cars; the exact engine and its readings can change it.
- Faulty vehicle or wheel speed sensor
- Damaged wiring or connector
- ABS module or instrument cluster fault on cars that share the signal
What you can check
Note whether the speedometer, cruise control or gear changes behave oddly, and whether ABS or traction warnings are on too. Usually an ABS or brake warning needs gentle driving and a prompt check.
Words the car uses
- Stored codes
- Faults the car has confirmed and saved. They help explain a check-engine light, but a code alone does not prove which part needs replacing.
- Freeze frame
- A snapshot of the engine's readings when a fault was recorded. It helps show the conditions that caused the fault, even if the car now seems fine.
- Readiness monitors
- The car's own checks of its emissions systems. An unfinished check means the car has not tested that system yet, so a clean code scan may miss a fault.
- Road speed
- How fast the car reports it is travelling. It helps show whether a fault happened at a standstill or on the road.
Find out what’s causing yours
Car Assist reads your car through an OBD-II adapter and your iPhone. Its assistant uses the codes, freeze frame and live readings to work through the likely cause with you.