P2299: Brake pedal and accelerator pedal positions incompatible
The ECU saw the brake and accelerator pressed together and cut power for safety. It may be driving style or a faulty pedal sensor.
| Code | P2299 |
|---|---|
| System | Engine and transmission |
| Group | P22xx, NOx sensors, oxygen sensors and emissions |
| Type | Generic: it means the same on every make |
| Can you keep driving? | With care |
What P2299 means
For safety, if the ECU sees the brake pedal pressed while the accelerator is also pressed, it cuts or reduces engine power so the brakes win. This code is stored when that happens. It can come from pressing both pedals at once (for example, braking with the left foot) or from a sensor sending a false signal.
Most common causes
- Pressing brake and accelerator together while driving
- Floor mat catching on the accelerator or brake pedal
- Misadjusted or faulty brake light switch or brake pedal sensor
- Accelerator pedal sensor giving wrong readings
- Loose or corroded pedal connectors
Symptoms
- Engine warning light on
- Car will not accelerate or suddenly loses power
- Brake lights on without the pedal pressed (if the switch is at fault)
- Stability control warning on some cars
Can you drive with P2299?
With care You can drive with care, but the engine may lose power suddenly, which is dangerous when joining traffic or overtaking. Get it checked soon.
How to check it
First make sure the floor mat is not touching the pedals. With your reader, watch the brake switch status and accelerator position live: releasing the brake should change its state and the accelerator should read zero when not pressed. Ask someone to check the brake lights go off when you lift your foot.
How to read and clear P2299 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P2299 with this same explanation and whether it’s confirmed, pending or permanent.
With Free you read this code with its short description for nothing, and clear it if the engine stores it over standard OBD. With Pro you get the full explanation, how the car was running when it was logged (revs, temperature, load) and clearing in every control unit.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before the ITV. It’s all in how to read and clear fault codes and in the ITV and OBD.
Similar codes
- P2272 Oxygen sensor signal biased or stuck lean (bank 2, sensor 2)
- P2273 Oxygen sensor signal biased or stuck rich (bank 2, sensor 2)
- P2279 Intake air system leak
- P2293 Fuel pressure regulator 2 performance
- P2200 NOx sensor circuit fault (bank 1)
- P2201 NOx sensor circuit range or performance problem (bank 1)
- P2227 Barometric pressure sensor A range or performance problem
- P2228 Barometric pressure sensor A circuit low
P2299 is a generic code, so it means the same on any make, for example on Audi, Fiat, Mazda, Opel / Vauxhall, Peugeot, Toyota. See what Final OBD does on your car in makes and models.
What does code P2299 mean?
For safety, if the ECU sees the brake pedal pressed while the accelerator is also pressed, it cuts or reduces engine power so the brakes win. This code is stored when that happens. It can come from pressing both pedals at once (for example, braking with the left foot) or from a sensor sending a false signal.
Can you drive with P2299?
You can drive with care, but the engine may lose power suddenly, which is dangerous when joining traffic or overtaking. Get it checked soon.
How do you clear P2299?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P2299 comes back.
Read it on your car
Final OBD reads the faults of every control unit for free, including each make’s own codes, and with Pro explains each one in plain English. Free clears engine faults at no cost.
Coming soon
Mid to late October 2026
If you want to try it in your car before anyone else, send us your email and we will add you as a tester.
info@finalobd.com