Brake Pedal Position/Accelerator Pedal Position Incompatible
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.
- Keep driving?
- No -- stop driving
- DIY difficulty
- moderate
- Estimated cost
- $50 - $400 (parts and labor)
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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
-
Check for floor mats interfering with the accelerator pedal
-
Verify the brake pedal returns fully when released
-
Monitor both brake and accelerator position sensor data simultaneously
-
Inspect the brake pedal position switch adjustment
-
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.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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