P2299- BRAKE PEDAL POSITION/ACCELERATOR PEDAL POSITION INCOMPATIBLE

For a complete wiring diagram Refer to Section 8W.

When Monitored:
With the engine running (engine speed above 570 rpm). No other APP or Brake Signal DTC's. Vehicle speed above 3 km/h.
Set Condition:
The ECM detects a brake signal input (brakes applied) and Accelerator Pedal Position above 3% at the same time for 15.0 seconds.

Possible Causes

ACCELERATOR PEDAL POSITION SENSOR

ACCELERATOR PEDAL OBSTRUCTION

BRAKE SWITCH ADJUSTMENT

BRAKE SWITCH

INTERMITTENT WIRING/CONNECTOR PROBLEM

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

1.CHECK FOR ACTIVE DTC

NOTE: This DTC may be set if the vehicle operator is “riding” the brake pedal (driving with both feet).

Does the scan tool display this DTC?

Yes

Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

2.CHECK BRAKE SWITCH OPERATION

NOTE: This DTC may be set if the Brake Switch is not properly adjusted. Check Brake Switch adjustment before continuing.

Are the Primary and Secondary Brake Switch inputs operating properly?

Yes

Refer to the Service Information Wiring to diagnose Brake Switch and/or Brake Switch wiring problem.
Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

3.CHECK ACCELERATOR PEDAL MOVEMENT

Were any of these problems found?

Yes

Repair or replace as necessary.
Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

4.CHECK ACCELERATOR PEDAL POSITION SENSOR INPUT

NOTE: The Accelerator Pedal must be at the complete rest position for this test. Ensure the pedal is at rest and free from any obstruction.

Does the scan tool display below 2% for APP #1 and APP #2 percentages?

Yes

Replace the Accelerator Pedal Position Sensor.
Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

5.INTERMITTENT APP SENSOR/BRAKE SWITCH

Were any problems found with the inputs during pedal actuation for the Brakes or Accelerator?

Yes

Using the wiring diagrams check the connectors and wiring associated with the Accelerator Pedal Sensor and Brake Switch for damage, corrosion or other problems that could cause an intermittent DTC.