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Home >> Dodge and Ram >> 2024 >> ProMaster 2500 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Electric Vehicle Control Unit Module (EVCU) - DTCS P2184-00 To P2534-00) >> DTC Troubleshooting >> P2299-00 Brake Pedal Position/Accelerator Pedal Position Incompatible >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.
  1. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN 
    WARNING:

    On vehicles equipped with the high voltage system, you must thoroughly read and follow all High Voltage Safety procedures. In addition, before performing any diagnostic or service procedure near a high voltage component, you must perform the High Voltage Power Down. Failure to follow these instructions may result in possible serious or fatal injury.

    Read the HIGH-VOLTAGE SAFETY PROCEDURES. Refer to  HIGH VOLTAGE SAFETY PROCEDURES  . 

    When the HIGH-VOLTAGE POWER-DOWN PROCEDURE is necessary. Refer to  VEHICLE HIGH VOLTAGE POWER DOWN  . 

      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 EVCU software will ramp to idle. If the Pedal voltage changes OR the brake pedal is released, the pedal position in the EVCU software will ramp up to the pedal position and the ETC light will go out. 

    2. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    3. For future reference, with the scan tool, run and save a vehicle Scan Report and all related recorded data.
    4. With the scan tool, erase all DTCs.
    5. Turn the ignition off for a minimum of 10.0 seconds.
    6. Turn the ignition on.
    7. Using the When Monitored and Set Conditions above and recorded data, operate the vehicle in the conditions that set the DTC.
    8. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      • Go To  2

      No 

  2. CHECK THE BPP SENSOR FOR PROPER OPERATION 
    1. With the scan tool, read both the Brake Pedal Position Sensor status while pressing and releasing the Brake Pedal.

      Does the scan tool display the Pressed and Released while pressing and releasing the Pedal?

      Yes 

      • Go To  3

      No 

      • Check the Brake Pedal Position Sensor for proper installation and check the related circuits for opens and shorts using the appropriate wiring diagram. If no problems are found, replace the Brake Pedal Position Sensor in accordance with the Service Information.
      • Perform the Electric Vehicle Control Unit (EVCU) VERIFICATION TEST. Refer to ELECTRIC VEHICLE CONTROL UNIT (EVCU) VERIFICATION TEST .
  3. PERFORM AN APP SENSOR SWEEP 
    1. Turn the ignition ON.
    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  4

      No 

  4. 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 

      No 

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