Code Definition

P2299 — Brake Pedal Position/Accelerator Pedal Position Incompatible

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P2299

P2299 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P2299 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The engine control module continuously compares the accelerator pedal position signal with the brake pedal position or brake switch signal as a safety plausibility check. DTC P2299 sets when the ECM sees the accelerator applied at the same time as the brake in a pattern that does not match normal driving, which suggests one of the two inputs is wrong. On drive by wire vehicles this cross check guards against unintended acceleration, so the ECM will often reduce throttle authority or drop to a fail safe idle mode when the code sets. The driver may notice hesitation, poor throttle response, or a...

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