SFI SYSTEM (w/ Electronic Throttle Control 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 0.2 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 body assembly
When the motor drive duty ratio for opening the fully closed throttle valve is 35% or more during the electronic throttle system check (This condition indicates that the valve is hard to close because the valve is sticking). (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 performed by tester)

WIRING DIAGRAM

A0137P5E01

INSPECTION PROCEDURE

Note

After replace the ECM, perform electronic throttle learning Click here.

Tech Tips

Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. 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 DTCS OUTPUT (IN ADDITION TO DTC P2109)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch ON.

    3. Turn the tester ON.

    4. Enter the following menus: Power train / Engine / DTC .

    5. Read DTCs.

      Result
      Display (DTC Output) Proceed to
      P2109 A
      P2109 and P1127 A
      P2109 and other DTCs (except P1127) B

      Tech Tips

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


    B

    GO TO DTC CHART

    A

  2. PERFORM ELECTRONIC THROTTLE LEARNING


    1. Perform the electronic throttle learning Click here.

      OK
      Learning has completed

    OK

    END

    NG

  3. CHECK WHETHER DTC OUTPUT RECURS (DTC P2109)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch ON.

    3. Turn the tester ON.

    4. Enter the following menus: Power train / Engine / DTC .

    5. Read DTCs.

      Result
      Display (DTC Output) Proceed to
      P2109 A
      P2109 and other DTCs B

      Tech Tips

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


    B

    GO TO DTC CHART

    A

  4. CHECK THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE)


    1. Check for contamination between the throttle valve and the housing.

      OK
      The throttle valve is not contaminated with foreign objects.

    NG

    CLEAN THROTTLE BODY

    OK

    REPLACE THROTTLE BODY ASSEMBLY