P2299 on 2015-2017 Jeep Renegade: Brake and Accelerator Pedal Incompatible Explained

What's Unique About the 2015-2017 Jeep RENEGADE

For the Jeep Renegade and its platform-mate the Fiat 500X, this code is exceptionally well-documented by the manufacturer. Jeep has issued multiple Technical Service Bulletins (TSBs) to dealerships, stating that P2299 is 'usually caused by a two footed driver' and that the 'accelerator pedal should not be replaced for this fault.' [Bulletin #9003413, Bulletin #53034160A] This strong guidance, echoed in owner forums, indicates that the issue is almost always related to driver habit, not a component failure, a fact that can save owners from expensive and unnecessary repairs.

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) light may illuminate
• Reduced engine power or 'limp mode' activation
• Poor or unresponsive throttle response
🎬 Learn more about the causes and warning signs of limp mode.
• Cruise control may be disabled

Most Likely Causes

1. Driver Applying Brake and Accelerator Pedals Simultaneously 🔴 High Probability → Shop Accelerator Pedal Assembly The system's logic is designed to flag this condition as a fault. Jeep has issued specific TSBs to highlight this as the primary cause to prevent misdiagnosis. [Bulletin #9003413, Bulletin #53034160A] This is often caused by drivers who rest their left foot on the brake pedal while driving with their right on the accelerator.
   How to confirm: Observe driving habits. This often occurs with drivers who use their left foot for the brake and right foot for the accelerator. Clearing the code and test driving with only the right foot is the best confirmation. If the code doesn't return, the habit was the cause.
   Typical fix: Modify driving style to use only the right foot for both pedals and keep the left foot on the dead pedal. No parts are typically required.
   Est. part cost: $0
2. Obstructed Pedal Area 🟡 Medium Probability A bunched-up, thick, or incorrect floor mat can physically interfere with the pedals, preventing one from returning to its rest position fully, creating a constant input signal that conflicts with the other pedal's use.
   How to confirm: Visually inspect the driver's side footwell. Remove the floor mat entirely, clear the code, and test drive to see if the issue is resolved. Ensure any replacement mat is properly secured.
   Typical fix: Remove the obstruction or replace the incorrect/damaged floor mat.
   Est. part cost: $0-$100
3. Faulty or Misadjusted Brake Light Switch ⚪ Low Probability → Shop Brake Light Switch While less common, a failing brake light switch (also called a stop lamp switch) can stick internally or electrically fail, sending a constant 'brake applied' signal to the PCM even when the pedal is not pressed. This creates a conflict as soon as the accelerator is used, triggering P2299.
   How to confirm: With the vehicle on, have someone observe the brake lights while you are not touching the pedal. If the brake lights are stuck on, the switch is likely faulty. A scan tool can also show the live data for the brake pedal position sensor to confirm it's sending an 'On' or 'Pressed' signal at all times.
   Typical fix: Replace the brake light switch. This is typically an inexpensive part located at the top of the brake pedal arm. 🎬 Watch: Step-by-step brake light switch replacement for your Renegade.
   Est. part cost: $20-$60

Rare But Worth Checking

• PCM Software Update Needed: In some cases, the sensitivity of the pedal position monitoring logic can be too high. Jeep has issued software updates for other models (like TSB 18-049-16 for the 2016 Grand Cherokee) to address P2299, suggesting it could be a potential fix if all other causes are ruled out. This would require a visit to a dealership or a qualified shop with a wiTECH scan tool to check for and apply available updates.
• Wiring or Connector Issue: The TSBs advise checking wiring and connectors. [Bulletin #53034160A] Corrosion or damage in the harness for either the brake or accelerator pedal sensors can cause erratic or constant signals, leading to the code. This should be checked if the problem persists after confirming driving habits and the brake switch are not the cause.

Diagnosis Steps

1. Verify driving habits. This is the most crucial first step. Ask the primary driver if they use two feet to drive or rest their left foot on the brake pedal.
2. Clear the code with an OBD-II scanner and test drive the vehicle using only the right foot for both pedals. If the code does not return, the issue is confirmed as driver habit.
3. Inspect the driver's footwell for any obstructions, such as an incorrect or bunched-up floor mat, that could interfere with pedal operation.
4. Check the operation of the brake light switch. Ensure the brake lights are not stuck on when the pedal is not being pressed.
5. Using a scan tool with live data capability, monitor the status of the Brake Pedal Position (BPP) sensor and the Accelerator Pedal Position (APP) sensor. Confirm that the BPP sensor shows 'Off' or 0% when the brake is not pressed and that the APP sensor reads 0% at rest.
6. If the brake light switch is suspected, replace it. It is an inexpensive part and a common point of failure for these symptoms if driving style is ruled out.
7. If the above steps do not resolve the issue, inspect the wiring harnesses and connectors for both pedal assemblies for any signs of damage, corrosion, or loose connections, as recommended by the TSB. [Bulletin #53034160A]
8. As a final step, consult a Jeep dealership about potential PCM software updates that may address over-sensitive logic for this code, similar to fixes for other Jeep models.

Parts You'll Likely Need

• Brake Light Switch (OEM #68073610AA) — In the rare event the code is not caused by driving habits, a faulty brake light switch sending an incorrect signal is the next most likely hardware failure. This part is also referred to as a Stop Lamp Switch.
  Trusted brands: Mopar, Standard Motor Products, Duralast
  OEM price range: $20-$40
  Aftermarket price range: $15-$30

Technical Service Bulletins (TSBs) & Recalls

• Bulletin #9003413: States that P2299 is usually caused by a two-footed driver and the accelerator pedal should not be replaced.
• Bulletin #53034160A: Reiterates that P2299 is usually caused by a two-footed driver and advises checking wiring and following service manual diagnostics before replacing any parts.

Platform-Specific Known Issues

• Jeep has issued Technical Service Bulletin #9003413 and #53034160A, which state that DTC P2299 is usually caused by a 'two footed driver' and explicitly warns that the accelerator pedal should not be replaced to fix this fault.
• Owner experiences on forums for various Jeep models consistently point to two-footed driving as the cause, with many drivers initially unaware of their habit until they consciously check.

Mechanic-Grade Diagnostic Values

• Accelerator Pedal Position (APP) Sensor 1 Voltage, Key-On-Engine-Off — expected: At Rest (Pedal Released): 0.38V - 0.53V. Fully Depressed: 4.40V - 4.70V.. Failure: Voltage is outside the expected range, does not increase smoothly, or does not return to the correct rest voltage.
• Accelerator Pedal Position (APP) Sensor 2 Voltage, Key-On-Engine-Off — expected: At Rest (Pedal Released): 0.19V - 0.27V. Fully Depressed: 2.20V - 2.35V.. Failure: Voltage is outside the expected range or does not track at approximately half the voltage of APP Sensor 1 throughout pedal travel.
• APP Sensor 1 vs. APP Sensor 2 Voltage Correlation — expected: The voltage of APP Sensor 1 should always be double the voltage of APP Sensor 2 throughout the entire range of pedal travel.. Failure: The 2:1 voltage ratio between the two sensors is not maintained. This indicates a fault within the pedal assembly.

Scan Tool Commands That Help

• wiTECH: Reprogram PCM (Flash) — This is a dealer-level fix used when a Technical Service Bulletin indicates that updated software is available to correct overly sensitive logic that triggers P2299. This should be considered only after driver habit, obstructions, and hardware faults have been definitively ruled out.

Wiring & Ground Locations

• G021 — Located at the left kick panel, near the driver's feet.. This is a primary body ground point for components in the driver's side dash area. A loose or corroded ground here can cause erratic behavior from various sensors, including the pedal assemblies.
• PCM Connector C2, Pin 66 — At the Powertrain Control Module (PCM).. This pin, with a Black/Pink wire, is listed as a 'SENSOR GROUND' in wiring diagrams. A fault in this specific ground circuit could affect the readings of multiple engine sensors, including the accelerator pedal.
• Accelerator Pedal Connector — Directly on the accelerator pedal assembly under the driver's side dash.. This is a 6-pin connector. Checking for corrosion, moisture, or backed-out pins here is a critical step before replacing the pedal assembly itself.

OEM Part Supersession History

• 68094764AA → 68073610AA — Standard part revision/update by the manufacturer.
  Heads up: The new part number (68073610AA) is the correct replacement for the original. Using the old number may result in receiving outdated stock.