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Home >> Jeep >> 2022 >> Gladiator Mojave, Part Time T/Case Control, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (3.0L Diesel - DTCS P2266-00 To P2457-00) >> DTC Troubleshooting >> P2299-00-Brake Pedal Position/Accelerator Pedal Position Incompatible >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different variant/trim than selected.
  1. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR THE DTC TO RETURN 
    1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    2. For future reference, run and save a vehicle Scan Report and all related recorded data.
    3. With the scan tool, erase all DTCs.
    4. Turn the ignition off for a minimum of 75.0 seconds.
    5. Turn the ignition on.
    6. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
    7. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      • Go To  2

      No 

      • Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
  2. 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 

      No 

      • Go To  3
  3. PERFORM AN APP SENSOR SWEEP AND CHECK THE SENSOR VOLTAGE READINGS 
    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 

      • 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 3.0L, POWERTRAIN VERIFICATION TEST .

      No 

      • Check the Signal and Return circuits for opens and shorts. If OK, Replace the APP Sensor Assembly in accordance with the Service Information. 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 3.0L, POWERTRAIN VERIFICATION TEST .
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