SFI SYSTEM, Diagnostic DTC:P2101, P2102, P2103, P2111, P2118

DTC Code DTC Name
P2101 Throttle Actuator Control Motor Circuit Range/Performance
P2102 Throttle Actuator Control Motor Circuit Low
P2103 Throttle Actuator Control Motor Circuit High
P2111 Throttle Actuator Control System - Stuck Open
P2118 Throttle Actuator Control Motor Current Range / Performance

DESCRIPTION

The throttle actuator is operated by the ECM, and opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the throttle position sensor, which is mounted on the throttle body assembly. The throttle position sensor provides feedback to the ECM in order that it can control the throttle actuator, and therefore the throttle valve, appropriately in response to driver inputs.

Tech Tips

This ETCS (Electronic Throttle Control System) does not use a throttle cable.

DTC No. DTC Detection Condition Trouble Area
P2101 The driving IC detects a malfunction inside itself during operation (1 trip detection logic). ECM
P2102 The driving IC detects a open in the throttle control motor circuit during operation (1 trip detection logic).

  • Open in throttle control motor circuit

  • Throttle body with motor assembly
P2103 The driving IC detects a short in the throttle control motor circuit during operation (1 trip detection logic).

  • Short in throttle control motor circuit

  • Throttle body with motor assembly
P2111

Either of following conditions is met: (1 trip detection logic)


  • When the absolute values for difference between the target throttle angle and actual throttle angle is more than threshold for 0.5 seconds or more.

  • The motor drive duty ratio for opening or closing the throttle valve is 80% or more for 5 seconds or more.

  • Open or short in throttle control motor circuit

  • Throttle body with motor assembly
P2118 The driving IC detects a high-current malfunction causing overheat in the throttle control motor circuit during operation (1 trip detection logic). Throttle body with motor assembly

Tech Tips

The monitor always runs while the ignition switch is ON or the engine is running.

WIRING DIAGRAM

A01VLKBE02

CAUTION / NOTICE / HINT

Note

Perform idle learning after replacing the ECM or throttle body with motor assembly Click here.

Tech Tips

Read freeze frame data using the GTS. 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 FOR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. Read DTCs.

      Result
      Result Proceed to
      DTC P2102 and P2111 is output A
      DTC P2103 and P2111 is output A
      DTC P2111 and P2118 is output A
      DTC P2111 is output B
      DTC P2101 and P2111 is output C

    B

    INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (VISUALLY CHECK THROTTLE VALVE) Click here

    C

    REPLACE ECM Click here

    A

  2. CHECK HARNESS AND CONNECTOR (ECM - THROTTLE BODY WITH MOTOR ASSEMBLY)


    1. Disconnect the B29 throttle body with motor assembly connector.

    2. Disconnect the B97 ECM connector (for LHD).

    3. Disconnect the B101 ECM connector (for RHD).

    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      A97-30 (M+) - B29-2 (M+) Always Below 1 Ω
      A97-60 (M-) - B29-1 (M-) Always Below 1 Ω
      A97-30 (M+) or B29-2 (M+) - Body ground Always 10 kΩ or higher
      A97-60 (M-) or B29-1 (M-) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      A101-30 (M+) - B29-2 (M+) Always Below 1 Ω
      A101-60 (M-) - B29-1 (M-) Always Below 1 Ω
      A101-30 (M+) or B29-2 (M+) - Body ground Always 10 kΩ or higher
      A101-60 (M-) or B29-1 (M-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Remove the throttle body with motor assembly Click here.

    2. Check for contamination between the throttle valve and housing. If necessary, clean the throttle body with motor assembly. Also, check that the throttle valve moves smoothly.

      OK
      Throttle valve is not contaminated with foreign objects and moves smoothly.

    NG

    CLEAN THROTTLE BODY WITH MOTOR ASSEMBLY

    OK

  4. REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY


    1. Replace the throttle body with motor assembly Click here.

    2. Perform electronic throttle learning Click here.


    NEXT

  5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2101, P2102, P2103, P2111 AND/OR P2118)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear DTCs Click here.

    5. Turn the ignition switch off and wait for 30 seconds.

    6. Turn the ignition switch to ON.

    7. Turn the GTS on.

    8. Start the engine.

    9. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    10. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC P2101, P2102, P2103, P2111 and/or P2118 are output B

    OK

    END

    NG

    REPLACE ECM Click here