SFI SYSTEM (w/ Electronic Throttle Control 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 (TP) sensor, which is mounted on the throttle body assembly. The TP 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 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 assembly
P2111

Either of following condition is met:


  • When the absolute values for difference between the target throttle angle and actual throttle angle is more than 4% to 50% 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.

(1 trip detection logic)

  • Open or short in throttle control motor circuit

  • Throttle 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 body assembly

Tech Tips

Detection is always performed when the ignition switch is ON or the engine is running.

WIRING DIAGRAM

A0137FPE02

INSPECTION PROCEDURE

Note

After cleaning the throttle body assembly, 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 DTC OUTPUT


    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 the output DTCs.

      Result
      Result Proceed to
      P2102 and P2111 A
      P2103 and P2111 A
      P2111 and P2118 A
      P2111 A
      P2101 and P2111 B

    B

    REPLACE ECM Click here

    A

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


    1. A0136MPE05

      Disconnect the throttle body assembly connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      B28-4 (M+) - B26-2 (M+) Always Below 1 Ω
      B28-1 (M-) - B26-3 (M-) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      B28-4 (M+) or B26-2 (M+) - Body ground Always 10 kΩ or higher
      B28-1 (M-) or B26-3 (M-) - Body ground Always 10 kΩ or higher

    4. Reconnect the throttle body assembly connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


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

      If necessary, clean the throttle body assembly.

    2. Check that the throttle valve moves smoothly.

      OK
      The throttle valve is not contaminated with foreign objects and can move smoothly.

    NG

    CLEAN THROTTLE BODY ASSEMBLY

    OK

  4. REPLACE THROTTLE BODY ASSEMBLY


    1. Replace the throttle body assembly Click here.

    2. Perform electronic throttle learning Click here.


    NEXT

  5. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Clear the DTCs.

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

    6. Turn the ignition switch to ON and fully depressed and released the accelerator pedal.

    7. Start the engine and run the engine at idle for 5 seconds or more.

    8. Turn the tester on.

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

    10. Confirm that the DTC is not output again.


    NEXT

    END