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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 80 (2.4L - DTCS P1607 To U1418) >> Diagnosis And Testing >> P2299-Brake Pedal Position/Accelerator Pedal Position Incompatible >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR ABS RELATED DTCS PRESENT 
    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.

    NOTE:

    The most likely cause of this DTC is caused by the customer driving with one foot on the Accelerator pedal and the other resting on the Brake Pedal or a Brake Pedal Position Sensor stuck in the pressed state. Ask the driver of the vehicle if these conditions apply to their driving habits before continuing.

    1. With the scan tool, read ABS Module DTCs.

      Are the any DTCs present in the ABS Module?

      Yes 

      • Perform the appropriate diagnostic test in the ABS Module.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Go To  2
  2. APP SENSOR SWEEP 
    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. APP Sensor 1 voltage should start at approximately 0.45 volts and increase to approximately 4.6 volts with a smooth transition.
    5. APP Sensor 2 voltage should start at approximately 0.22 volts and increase to approximately 2.31 volts with a smooth transition.

      Does the voltage for the appropriate sensor follow the list specification?

      Yes 

      • Go To  3

      No 

      • Check the Signal and Return circuits for opens and shorts. If OK, Replace the APP Sensor Assembly in accordance with the service information. Refer to PEDAL, ACCELERATOR, REMOVAL . After installation is complete, with a scan tool select the ETC RELEARN function to relearn the APPS values.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
  3. PERFORM THE BRAKE PEDAL CALIBRATION ROUTINE 
    1. With the scan tool, navigate to ABS Module, Misc. Functions, and perform the Brake Pedal Calibration Routine.

      Was the Brake Pedal Calibration Routine successful?

      Yes 

      • Test drive the vehicle and verify that the Brake Pedal Calibration fixed the problem.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .

      No 

      • Visually inspect the BPP Sensor for Improper installation, damage or mechanical failure. If OK, replace the Brake Pedal Position Sensor.
      • Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
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