P2299 on 2015-2017 Chrysler 200: Brake and Accelerator Pedal Conflict Explained

What's Unique About the 2015-2017 Chrysler 200

For the Chrysler 200 and other similar FCA models (like the Dodge Dart, Jeep Cherokee, and Chrysler 300), the manufacturer has been very direct about the cause of P2299. They have issued multiple Technical Service Bulletins (TSBs) stating this code is most often caused by 'two-footed driving' and specifically warn technicians NOT to replace the accelerator pedal assembly based on this code alone. This is a strong indicator that the issue is more likely related to driver habits or a simple adjustment rather than a costly part failure. Forum discussions across various FCA models confirm that owners are frequently advised of this, and changing driving habits resolves the code.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this vehicle.

Symptoms You May Notice

• Check Engine Light is on
• Electronic Throttle Control (ETC) or 'lightning bolt' warning light is illuminated
• Vehicle enters 'limp mode' with significantly reduced engine power and acceleration
• Sluggish or unresponsive accelerator pedal
• Cruise control is disabled
• Brake light warning lamp may flash or stay on.

Most Likely Causes

1. Driver Habit (Two-Footed Driving) 🔴 High Probability The vehicle's Brake-Throttle Override system is designed to prioritize braking for safety. Resting a left foot on the brake pedal while accelerating with the right foot will trigger this code. Chrysler TSBs #9003413 and #53034160A explicitly name this as the most common cause. This is also sometimes caused by 'brake torquing' to do a burnout.
   How to confirm: Question the driver about their driving habits. This is the first and most important diagnostic step. Clear the code and test drive using only the right foot for both pedals. If the code does not return, the cause is confirmed.
   Typical fix: Advise the driver to use only their right foot for both the accelerator and brake pedals. Clear the code with a scanner.
   Est. part cost: $0
2. Improperly Positioned or Bulky Floor Mat 🟡 Medium Probability An aftermarket or bunched-up floor mat can physically prevent the accelerator or brake pedal from returning to its resting position, causing a constant signal to be sent to the PCM.
   How to confirm: Visually inspect the driver's side floor area to ensure the floor mat is properly secured and not interfering with pedal travel. Remove the mat entirely and test drive to see if the problem disappears.
   Typical fix: Reposition, remove, or replace the floor mat. Clear the code.
   Est. part cost: $0-$50

Rare But Worth Checking

• Faulty Brake Light Switch (Brake Pedal Position Sensor): A failing brake light switch can send a false 'brake applied' signal to the PCM even when the pedal is not being pressed. This is a relatively inexpensive part to replace compared to the accelerator pedal assembly.
• PCM Software Update Needed: On some Chrysler/Jeep/Dodge vehicles, TSBs like #18-049-16, #18-086-16, and #18-073-20 have been issued to update the PCM software. The original logic could be too sensitive and set P2299 incorrectly. A dealer can check if your vehicle's VIN has a pending software update.
• Faulty Accelerator Pedal Position (APP) Sensor: While Chrysler TSBs specifically warn against replacing the pedal for this code, a genuine sensor failure is still possible, though rare. This should only be considered after all other possibilities have been exhausted and confirmed with live scan tool data 🎬 Watch: How to test the accelerator pedal sensor with a scanner. showing erratic or out-of-spec voltage from the APP sensor.
• Wiring or Connector Issue: Corrosion or damage to the wiring or connectors for either the brake or accelerator pedal sensors can cause erratic signals, leading to the code. The harness near the pedals can be kicked or stressed over time.

Diagnosis Steps

1. First, ask the driver if they drive with two feet (one on the brake, one on the gas). This is the most common cause.
2. Inspect the driver-side floor mat to ensure it is not obstructing either pedal. Remove it for a test drive to be certain.
3. Connect an OBD-II scanner and view the live data for the Accelerator Pedal Position (APP) sensor and the Brake Pedal Position (BPP) sensor.
4. Press each pedal individually and observe the data. The BPP sensor should read 'Off' or 0% when the brake is not pressed, and 'On' or 100% when it is. The APP sensor should read near 0% at idle and increase smoothly.
5. Press both pedals lightly to see if you can replicate the fault condition in the live data.
6. If a sensor is sending an incorrect signal (e.g., the BPP sensor reads 'On' when the pedal is released), inspect its wiring and connector before condemning the sensor itself.
7. If no issues are found, check with a Chrysler dealer for any available Powertrain Control Module (PCM) software updates, as some TSBs address overly sensitive logic for this code.

Parts You'll Likely Need

• Brake Light Switch / Brake Pedal Position Sensor (OEM #56054001AD) — If a part has failed, it is more likely to be the brake light switch 🎬 See this step-by-step Chrysler 200 brake light switch replacement guide. sending a false 'on' signal than the more expensive accelerator pedal assembly.
  Trusted brands: Mopar, Standard Motor Products, Duralast
  OEM price range: $30-$50
  Aftermarket price range: $15-$30

Related Codes That Often Appear With This One

• P2122 — This code for 'Accelerator Pedal Position Sensor 1 Circuit Low' can be set if the accelerator pedal connector is disconnected during diagnosis, as noted in TSB #9003413.
• P2127 — This code for 'Accelerator Pedal Position Sensor 2 Circuit Low' can also be set if the accelerator pedal connector is disconnected during diagnosis, as noted in TSB #9003413.

Technical Service Bulletins (TSBs) & Recalls

• 9003413: States P2299 is usually caused by a 'two footed driver' and the accelerator pedal should not be replaced for this fault.
• 53034160A: Repeats the warning that P2299 is often from two-footed driving and not to replace the accelerator pedal without proper diagnosis.
• 18-049-16 / 18-049-20: A PCM software update for some 2016+ models to fix overly sensitive logic that can cause P2299 to set incorrectly.
• 18-086-16: Lists P2299 as a code that may be resolved with a PCM software update on some 2.4L and 3.6L engines.

Platform-Specific Known Issues

• Chrysler has issued Technical Service Bulletin #9003413, which states: 'DTC P2299 is usually caused by a two footed driver and accelerator pedal should not be replaced for this fault.'
• A similar TSB, #53034160A, reinforces this, advising technicians to check wiring and connectors and confirming the cause is often a 'two footed driver.'
• Multiple owners on forums for Chrysler/Dodge vehicles confirm that being told about two-footed driving was the correct diagnosis. A user on DodgeForum.com noted the code was set by 'Brake Torquing' the engine.

Mechanic-Grade Diagnostic Values

• APP Sensor Voltage (General) — expected: Two separate signals that sweep from a low voltage (~0.5V - 0.7V) at pedal released to a high voltage (~3.8V - 4.5V) at pedal fully pressed.. Failure: A signal that is stuck, has dead spots, or does not sweep smoothly indicates a faulty sensor.
🎬 Watch: A pro mechanic shows how to test APP sensor voltages.
• APP Sensor 1 vs. APP Sensor 2 Voltage Relationship — expected: Many Chrysler systems use a design where the voltage of APP Sensor 2 is approximately half that of APP Sensor 1 throughout the pedal's travel (e.g., APP1 at 0.74V, APP2 at ~0.37V at idle).. Failure: If the 2:1 voltage ratio between the sensors is not maintained, it indicates a fault in the pedal assembly.
• Brake Pedal Position (BPP) Sensor Live Data — expected: Should show 'On' or 100% when the brake pedal is pressed, and 'Off' or 0% when released.. Failure: If the scan tool shows 'On' when the pedal is released, the switch may be stuck or misadjusted.
• Sensor Circuit Ground Resistance — expected: Less than 0.1 Ω.. Failure: High resistance on a ground circuit can cause incorrect sensor readings.

Scan Tool Commands That Help

• wiTECH (or equivalent professional scanner): Live Data Monitoring — To simultaneously view the voltage/percentage of both APP sensors and the on/off status of the BPP sensor. This is the primary method to confirm if the PCM is seeing conflicting signals.
• wiTECH (or equivalent professional scanner): Pedal Calibration — Some service manuals suggest a pedal calibration routine may be available after replacing a sensor or control module to ensure the new components are correctly scaled by the PCM.
• wiTECH: Check PCM Calibration/Reflash — To check if the vehicle's current PCM software is outdated. A dealership can use this function to apply TSB-related updates that fix overly sensitive logic for P2299.

Wiring & Ground Locations

• Accelerator Pedal Connector — At the top of the accelerator pedal assembly, under the driver's side dashboard.. This is a 6-pin connector that provides power, ground, and signal lines for the two internal APP sensors. Damage or corrosion here will directly cause APP sensor codes and can contribute to P2299.
• Brake Pedal Position (BPP) Switch Connector — At the top of the brake pedal arm assembly, under the driver's side dashboard.. A loose connection or damaged wiring at this switch can cause a false 'brake applied' signal to be sent to the PCM, triggering P2299 when the accelerator is pressed.
• G905A — Below the left headlight assembly.. This is a major ground point for various engine and front-end components shown in the vehicle's electrical diagrams. While not exclusively for the pedal sensors, a poor ground here can introduce electrical noise and issues into multiple systems monitored by the PCM.

Real Owner Repair Stories

• Mazdas247 Forum User Comment (Mazda3 (Note: Different vehicle, but illustrates a common non-driver-habit fix)) — Intermittent P2299 code with sluggish acceleration, occurred mostly in cold weather. Dealer could not reproduce the issue.
  ❌ Tried (didn't work) Spark plug replacement, Fuel injection service, Belt and tensioner replacement
  ✅ What actually fixed it For a similar issue reported by another user, the fix was replacing the brake light switch and updating the PCM firmware.

"I Checked Everything" — The Actual Cause

• This is an electrical code, so a smoke test is not applicable. The equivalent pattern is 'standard component checks pass, but the code persists.' The most common instance for P2299 is when a technician confirms the pedal sensors and brake switch are functioning correctly, but overlooks that the root cause is a PCM software calibration that is too sensitive. Several TSBs exist for Chrysler platforms to reflash the PCM with updated logic to correct this.

When the Usual Fixes Don't Work

• While the overwhelming cause of P2299 is driver habit, there are documented cases where this is not the root problem. The most common counter-evidence points to a faulty brake light switch sending a constant 'brake on' signal. A less common but possible cause is a needed PCM software update to correct overly sensitive monitoring logic, as addressed in multiple TSBs. In rare cases, despite manufacturer warnings, the accelerator pedal assembly itself can fail internally, which would require replacement to resolve the code.

OEM Part Supersession History

• 56054001aa, 56054001ab, 56054001ac → 56054001AD — Part revision and consolidation by the manufacturer.
  Heads up: The newest part number, 56054001AD, is the correct service replacement for the earlier versions.

Model Year Variations Within This Range

• 2015-2016 (pre-update): Earlier models, particularly those with the 2.4L or 3.6L engines, may have overly sensitive PCM software logic for triggering P2299. TSBs like 18-049-20 were released for 2016-2017 models to refine this logic, making a PCM reflash a potential fix for earlier vehicles exhibiting this code without a clear physical fault.