Fault code P2299 – brake pedal position/accelerator pedal position incompatible

Fault code P2299 is called “Brake Pedal Position (BPP)/Accelerator Pedal Position (APP) Incompatible” but in different programs it may be called differently. This fault designation applies to all vehicles equipped with OBD-II.

Technical description and explained code P2299

This diagnostic trouble code (DTC) is a generic transmission code. Error P2299 is considered a general code because it applies to all makes and models of vehicles. Although the specific repair steps may vary slightly from model to model.

Fault code P2299 – brake pedal position/accelerator pedal position incompatible

When this code is stored, the powertrain control module (PCM) detects a brake/accelerator pedal mismatch. Set when unexpected simultaneous use of the gas pedal and brake pedals occurs.

The control module (PCM) continuously monitors the brake pedal position to understand if the brakes are currently applied. It also monitors the accelerator pedal position to effectively control the throttle.

If the brake pedal is depressed and the accelerator pedal position sensor indicates that the throttle is open at the same time, code P2299 will be stored. If the problem lasts more than 5 seconds, the indicator on the dashboard will light up and the car will go into the emergency operation mode.

Normally, the emergency mode is immediately cancelled if the PCM starts to receive the correct brake and accelerator pedal position signals.

Symptoms of vehicle malfunctions

The main signal that an error P2299 has occurred is the Malfunction Indicator Lamp (MIL) is also known as the CheckEngine Light.

It can also be warning signs such as:

  1. The “Check Engine” control lamp on the control panel will light up (the code will be stored in the memory as a fault).
  2. The PCM control module will reduce the throttle opening degree and put the vehicle into the emergency operation mode.
  3. If the problem disappears, the engine will return to normal operation.

Error P2299 is not considered serious, the car will be able to start and continue driving. But in some cases, the emergency operation mode will be activated.

Factors that can cause this error code

The error code P2299 can mean that one or more of the following problems have occurred:

  • The driver depressed the brake pedal and gas pedal at the same time.
  • Faulty brake light switch.
  • Accelerator pedal position sensor malfunction.
  • Problem with wiring or connectors.

How to fix or reset OBD-2 code P2299

Some suggested steps for troubleshooting and fix the error code P2299:

  1. Read all stored data and error codes with an OBD-II scan tool.
  2. Clear the trouble codes from the computer memory and test-drive the vehicle to find out if error P2299 appears again.
  3. Check the brake light switch.
  4. Check the accelerator pedal position sensor.
  5. Inspect the electrical wires and connectors for damage or poor contact. Repair any faults found.

Diagnose and repair of problems

A very common cause of error P2299 is the driving style of a particular driver. More precisely, when the driver presses the brake pedal and the gas pedal at the same time.

If this is the case, the error will disappear from the dashboard almost immediately, but will remain in the computer memory, from where it can be removed with a scanner OBD-2. If it cannot be removed, it will erase itself after 40 cycles of starting the engine without malfunction.

If this is not the cause of the error, it is necessary to check the brake light switch, accelerator pedal position sensor, as well as their circuits.

After a visual inspection of the wiring and connectors, they should be checked with a multimeter. The sensors should also be checked according to the manufacturer’s specifications.

If faulty wiring is detected, it must be repaired or replaced, faulty sensors must also be replaced. If everything is done correctly, error code P2299 should disappear.

On which vehicles does this problem occur most frequently

Fault code P2299 can occur on different vehicles but there are statistics on which brands this occurs most often. Here is a list of some of them:

  • Chevrolet
  • Chrysler (300)
  • Citroen (C4, Jumper)
  • Dodge (RAM)
  • Fiat (Doblo, Ducato)
  • Infiniti
  • Jeep
  • Mazda (3, 6, CX-5)
  • Mercedes-Benz
  • Nissan
  • Peugeot (308, Boxer)
  • Renault (Logan)
  • GAZelle (Business, Next)
  • LADA (Vesta)

Fault code P2299 can sometimes be found with other errors. The most common are the following: P057A, P057B, P057C, P057D, P057E.

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