SFI SYSTEM, Diagnostic DTC:P2112

DTC Code DTC Name
P2112 Throttle Actuator Control System - Stuck Closed

DESCRIPTION

Refer to DTC P2101.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P2112

Throttle Actuator Control System - Stuck Closed

The throttle does not open when current is applied to the throttle motor (1 trip detection logic).

  • Open or short circuit in throttle motor circuit

  • Throttle body with motor assembly

Comes on

DTC stored

WIRING DIAGRAM

Refer to DTC P2101.

Click here

CONFIRMATION DRIVING PATTERN

DTC P2112 is detected when the ignition switch to ON.

CAUTION / NOTICE / HINT

Note:

After replacing the throttle body with motor assembly, perform electronic throttle learning and idle learning.

Click here

Tip:

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 ANY OTHER DTC OUTPUT (IN ADDITION TO DTC P2112)

    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 the DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      Result

      Result

      Proceed to

      DTC P2112 is output

      A

      DTC P2112 and other DTCs are output

      B
      Tip:

      If any DTCs other than P2112 are output, troubleshoot those DTCs first.

    B

    GO TO DTC CHART

    Click here

    A

  2. 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 matter and moves smoothly.

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY

    Click here

    OK

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

    1. Disconnect the throttle body with motor 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

      B31-30 (M+) - B15-2 (M+)

      Always

      Below 1 Ω

      B31-60 (M-) - B15-1 (M-)

      Always

      Below 1 Ω

      B31-30 (M+) or B15-2 (M+) - Body ground

      Always

      10 kΩ or higher

      B31-60 (M-) or B15-1 (M-) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY

    1. Replace the throttle body with motor assembly.

      Click here

    2. Perform electronic throttle learning and idle learning.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2112)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs

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

    6. Turn the ignition switch to ON.

    7. Turn the GTS on.

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

    9. Read the DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      OK

      DTCs are not output.

    Result

    Proceed to

    NEXT
    NEXT

    END