For a complete wiring diagram Refer to Section 8W.When Monitored:With the engine running (engine speed above 710 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 input is above 3% at the same time for 15.0 seconds.Possible CausesACCELERATOR PEDAL POSITION SENSORACCELERATOR PEDAL OBSTRUCTIONBRAKE SWITCH ADJUSTMENTBRAKE SWITCHINTERMITTENT WIRING/CONNECTOR PROBLEMAlways perform the Pre-Diagnostic Troubleshooting procedure before proceeding.(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)1. CHECK FOR ACTIVE DTCThis DTC may be set if the vehicle operator is “riding” the brake pedal (driving with both feet). With the scan tool, clear all ECM DTCs.Test drive the vehicle performing several stop-and-go operations.With the scan tool, view active ECM DTCs.Does the scan tool display this DTC?YesGo To 2 NoRefer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure.(Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)2. CHECK BRAKE SWITCH OPERATIONThis DTC may be set if the Brake Switch is not properly adjusted. Check Brake Switch adjustment before continuing.Turn the ignition on.With the scan tool, read the Primary and Secondary Brake Switch Input.Are the Primary and Secondary Brake Switch inputs operating properly?YesGo To 3 NoRefer 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 - STANDARD PROCEDURE)3. CHECK ACCELERATOR PEDAL MOVEMENTTurn the ignition off.Check the Accelerator Pedal for obstructions or other problem that could restrict pedal travel, cause binding or prohibit the pedal from traveling to the complete rest position.Were any of these problems found?YesRepair or replace as necessary.Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - STANDARD PROCEDURE)NoGo To 44. CHECK ACCELERATOR PEDAL POSITION SENSOR INPUTTurn the ignition on.The Accelerator Pedal must be at the complete rest position for this test. Ensure the pedal is at rest and free from any obstruction. With the scan tool, read the APP #1 and APP #2 percentages.Does the scan tool display below 2% for APP #1 and APP #2 percentages?YesGo To 5NoReplace the Accelerator Pedal Position Sensor.Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - STANDARD PROCEDURE)5. INTERMITTENT APP SENSOR/BRAKE SWITCHTurn the ignition on.With the scan tool, read the APP #1 and APP #2 percentagesFully depress and release the Accelerator Pedal several times.With the scan tool, read the Primary and Secondary Brake Switch inputs.Fully depress and release the Brake Pedal several times.Were any problems found with the inputs during pedal actuation for the Brakes or Accelerator?YesRepair or replace as necessary.NoUsing 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.