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P codepowertrainMedium severity

P063EAuto Configuration Throttle Input Not Present

The PCM's automatic configuration routine did not receive the expected throttle input, usually because a replacement PCM has not learned the vehicle's throttle setup.

Definition

Some PCMs (notably Chrysler-family controllers) run an auto-configuration routine at initial power-up that detects which optional systems the vehicle has, including the electronic throttle actuator and its sensors. P063E sets when that routine expects throttle configuration data and no valid throttle input is present, most often after a PCM has been replaced or reflashed without completing programming, or when the throttle actuator circuits are disconnected during first boot. The vehicle may start and run in a reduced-power default mode, run poorly, or refuse to respond to the accelerator, and the MIL will be on. The fix is usually completing PCM programming/configuration rather than replacing throttle hardware.

Common causes

  • Replacement PCM not programmed or configured to the vehicle's VIN and options
  • Incorrect PCM part number or calibration for the vehicle's throttle system
  • Throttle body or accelerator pedal sensor unplugged during initial PCM power-up
  • Open circuits between the PCM and the throttle actuator or its position sensors
  • Interrupted or failed flash-programming session leaving configuration incomplete

Common misdiagnoses

  • Replacing the throttle body when the PCM simply needs programming
  • Replacing the accelerator pedal position sensor for a configuration fault
  • Replacing the new PCM again instead of completing the configuration/VIN write
  • Chasing intermittent wiring when the calibration file was wrong for the vehicle

Troubleshooting steps

  1. 1.Check PCM programming history and part number

    Verify the installed PCM part number and calibration match the vehicle's VIN and options using the manufacturer's parts and calibration lookup, especially if the PCM was recently replaced.

  2. 2.Confirm throttle circuits are connected and intact

    Inspect the throttle body and accelerator pedal connectors for full engagement and verify continuity from the PCM to the throttle actuator with the specified pinout.

  3. 3.Complete PCM programming and configuration

    Perform the full flash and vehicle configuration (VIN write, options restore) with the OEM scan tool or J2534 pass-through, allowing the auto-configuration routine to run to completion.

  4. 4.Cycle the ignition and recheck for the code

    Perform the specified key-off soak so the module powers down fully, then confirm P063E does not reset and throttle PIDs respond to pedal input.

  5. 5.Perform the throttle relearn

    Run the idle/ETC relearn procedure after configuration so commanded and actual throttle angles align, then road test for normal power delivery.

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