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 with motor body 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 with motor body 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 with motor body 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 with motor body assembly

Tech Tips

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

WIRING DIAGRAM

A01VKRKE01
*a Throttle Actuator Control Circuit
*b Throttle with Motor Body Assembly

CAUTION / NOTICE / HINT

Note

Perform electronic throttle learning after replacing the ECM or 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 FOR DTC


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

    C

    REPLACE ECM Click here

    A

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


    1. Disconnect the throttle with motor body assembly connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A71-2 (M+) - B89-4 (M+) Always Below 1 Ω
      A71-3 (M-) - B89-1 (M-) Always Below 1 Ω
      A71-2 (M+) or B89-4 (M+) - Body ground Always 10 kΩ or higher
      A71-3 (M-) or B89-1 (M-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Remove the throttle with motor body assembly.

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

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

    NG

    CLEAN THROTTLE WITH MOTOR BODY ASSEMBLY

    OK

  4. REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY


    1. Replace the throttle with motor body 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 intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester 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 tester on.

    8. Start the engine.

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

    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