SFI SYSTEM, Diagnostic DTC:P2109

DTC Code DTC Name
P2109 Throttle / Pedal Position Sensor "A" Minimum Stop Performance

DESCRIPTION

DTC No. DTC Detection Condition Trouble Area
P2109

When any of the following is detected, electronic throttle learning value malfunction is detected: (1 trip detection logic)


  • Sensor 1 fully-closed position learning value is 0.2 V or less

  • Sensor 1 fully-closed position learning value is 0.86 V or more

  • Sensor 2 fully-closed position learning value is 4.1 V or less

  • Sensor 2 fully-closed position learning value is 4.8 V or more

 Throttle with motor body assembly
When the motor drive duty ratio for opening from the fully closed throttle valve is 35% or more during the electronic throttle system check (1 trip detection logic).
When learning is not completed because the learning conditions are not satisfied (1 trip detection logic).

Tech Tips

Detection for P2109 is performed during electronic throttle learning. (The learning can be performed using the tester)

WIRING DIAGRAM

Refer to DTC P0121 Click here.

CAUTION / NOTICE / HINT

Note

Perform electronic throttle learning after replacing the throttle with motor body assembly Click here.

Tech Tips

Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK ANY OTHER DTC OUTPUT (IN ADDITION TO DTC P2109)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / DTC.

    5. Read DTCs.

      Result
      Result Proceed to
      DTC P2109 is output A
      DTC P2109 and P1127 is output A
      DTC P2109 and other DTCs (except P1127) are output B

      Tech Tips

      If any DTCs other than P2109 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. PERFORM ELECTRONIC THROTTLE LEARNING


    1. Perform the electronic throttle learning Click here.

      OK
      Learning is complete.

    OK

    END

    NG

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P2109)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / DTC.

    5. Read DTCs.

      Result
      Result Proceed to
      DTC P2109 is output A
      P2109 and other DTCs are output B

      Tech Tips

      If any DTCs other than P2109 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  4. INSPECT THROTTLE WITH MOTOR BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Throttle Sensor Position.

    5. Read the value when the accelerator pedal is operated.

      OK
      The throttle position sensor value varies with changes in the angle of the accelerator pedal.

    OK

    REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY Click here

    NG

    CLEAN THROTTLE WITH MOTOR BODY ASSEMBLY