Brake Pedal Position/Accelerator Pedal Position Incompatible
What does P2299 mean?
The P2299 code means the vehicle's onboard diagnostic system has detected: Brake Pedal Position/Accelerator Pedal Position Incompatible. This is a critical severity code.
Common Symptoms
- Engine power reduced or cut completely
- Check Engine Light illuminated
- Vehicle enters limp mode
- Unintended acceleration concern
- Both brake and throttle signals detected simultaneously
Probable Causes (Ranked by Likelihood)
- Misadjusted or stuck brake pedal position switch Very High
- Floor mat interfering with accelerator pedal High
- Failed accelerator pedal position sensor Moderate
- Brake pedal not fully returning due to binding Moderate
Step-by-Step Diagnostic Procedure
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Check for floor mats interfering with the accelerator pedal
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Verify the brake pedal returns fully when released
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Monitor both brake and accelerator position sensor data simultaneously
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Inspect the brake pedal position switch adjustment
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Check accelerator pedal sensor readings at rest and full throttle
Frequently Asked Questions
Can I drive with code P2299?
No, do not drive. This code indicates a potential conflict between brake and throttle inputs, which is a serious safety concern.
What causes P2299?
Often as simple as a floor mat pressing on the accelerator pedal, or a brake switch that is out of adjustment. Check these before replacing any sensors.
Is P2299 expensive to fix?
Often inexpensive at $50 to $400. Repositioning a floor mat or adjusting the brake switch costs very little. Sensor replacement is moderately priced.