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Home >> Chrysler >> 2009 >> 300 Signature Series >> Repair and Diagnosis >> External Pages >> Different car >> Section 355 (Gas - DTCS P2273 To P3441) >> P2299-Brake Pedal Position/Accelerator Pedal Position Incompatible >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2010 Dodge Charger and 2010 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. DTC IS ACTIVE 
    NOTE: If a Accelerator Pedal assembly becomes mechanically stuck, the output voltage will stay fixed. If this is followed by a long application of the brakes, this DTC will set.
    NOTE: Diagnose any Brake Switch or APPS DTCs before continuing with this test.
    NOTE: This DTC will set if the PCM detects that the Accelerator Pedal and the Brake Switch are both pressed for a specific amount of time.
    1. Start the engine and allow it to reach operating temperature.
      WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in possible serious or fatal injury.
    2. With the scan tool select View DTCs.
      NOTE: If the DTC does not reset it may be necessary to test drive the vehicle.

      Is the status Active for this DTC?

      Yes 

      • Go to step  2

      No 

  2. STOP LAMP SWITCH 
    1. With a 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 appropriately when the brake pedal is pressed and released.

      Does the status change as described above?

      Yes 

      • Go to step  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 in accordance with the Service Information.
      • Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
  3. ACCELERATOR PEDAL POSITION SENSOR 
    1. Turn the ignition on.
    2. With a scan tool, monitor both APP Sensor voltage readings.
    3. Slowly press the Accelerator Pedal until it reaches the end stop.
    4. The APPS 1 voltage should start at approximately 0.875 volts and increase to approximately 4.5 volts with a smooth transition.
    5. The APPS 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 CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

      No 

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