P2299
P2299-BRAKE PEDAL POSITION / ACCELERATOR PEDAL POSITION INCOMPATIBLE
For a complete wiring diagram, refer to the Wiring Information.
- When Monitored:
With the ignition on and no brake or Accelerator Pedal Position (APP) sensor DTCs present.
- Set Condition:
The Powertrain Control Module (PCM) detects that the Brake Switch and the Accelerator Pedal are both pressed for a calculated amount of time. One trip fault and the code will be set within five seconds. ETC light will illuminate, the light will only stay illuminated while DTC is active.
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.
1. DTC INFORMATION
NOTE: If a pedal assembly becomes mechanically stuck the voltage output will stay fixed, if this is also Followed by a long application of the brakes this code will set.
NOTE: When this code sets the pedal position in the PCM software will ramp to idle. If the Pedal voltage changes OR the brake pedal is released, the pedal position in the PCM software will ramp up to the pedal position and the ETC light will go out.
1. With the scan tool, read DTCs and record the related Freeze Frame data.
2. Diagnose all other Stop Lamp Switch and APP sensor codes before continuing.
3. This code can be set by a driver who uses both feet while driving, one for the Accelerator Pedal and the other for the Brake Pedal.
NOTE: The most likely cause of this DTC is caused by the customer Brake Torquing the engine by pressing the Accelerator pedal and the pressing the Brake Pedal.
4. Ask the driver of the vehicle if these conditions apply to their driving habits.
Are the listed conditions part of the customers driving habits?
Yes
- Advise the customer of what caused the DTC. This is normal operation of a ETC equipped vehicle because of safety issues.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.
No
- Go To 2
2. STOP LAMP SWITCH
1. With the scan tool, monitor the status of brake switch 1 and brake switch 2.
2. Pressed and release the brake pedal.
NOTE: The status for each switch should change from Not Pressed to Pressed when the brake switch is pressed.
Does the status change as described above?
Yes
- Go To 3
No
- Check the Stop Lamp Switch for proper adjustment and installation. Check all related circuits for an open or shorted condition using the appropriate wiring diagram. If no other problems are found, replace the Stop Lamp Switch.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.
3. ACCELERATOR PEDAL POSITION SENSOR
1. Ignition on, engine not running.
2. With the scan tool, monitor both APP sensor voltage readings.
3. Slowly press the accelerator pedal from idle until it reaches the end stop near the floor.
4. The APP sensor 1 voltage should start at approximately 0.875 Volts and increase to approximately 4.5 Volts with a smooth transition.
5. The APP sensor 2 voltage should start at approximately 0.45 Volts and increase to approximately 2.3 Volts with a smooth transition.
Does the sensor voltage change as described above when the accelerator pedal was pressed.
Yes
- Perform the INTERMITTENT CONDITION diagnostic procedure. Intermittent Condition Test.
No
- Check the appropriate APP sensor circuits for an open and shorted condition. If no problems are found, replace the APP sensor Assembly. After installation, with a scan tool, perform the ETC RELEARN function.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.