ECD SYSTEM(w/ Glow Plug Controller), Diagnostic DTC:P2100,P2101,P2102 and P2103

DTC Code DTC Name
P2100 Throttle Actuator Control Motor Circuit / Open
P2101 Throttle Actuator Control Motor Circuit Range/Performance
P2102 Throttle Actuator Control Motor Circuit Low
P2103 Throttle Actuator Control Motor Circuit High

DESCRIPTION

The ECM opens and closes the throttle valve using a DC motor type actuator. With the throttle valve, the exhaust gas recirculation volume can be properly controlled by opening and closing the valve. Also, engine vibration and noise will be reduced by closing the valve when the engine is stopped.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P2100

Throttle Actuator Control Motor Circuit / Open

Open in throttle actuator circuit

(1 trip detection logic)

  • Open in throttle actuator circuit

  • Diesel throttle body assembly

  • ECM

Comes on

DTC stored

P2101

Throttle Actuator Control Motor Circuit Range/Performance

Short in throttle actuator circuit

(2 trip detection logic)

  • Short in throttle actuator circuit

  • Diesel throttle body assembly

  • ECM

Comes on

DTC stored

P2102

Throttle Actuator Control Motor Circuit Low

Short in throttle actuator circuit

(2 trip detection logic)

  • Short in throttle actuator circuit

  • Diesel throttle body assembly

  • ECM

Comes on

DTC stored

P2103

Throttle Actuator Control Motor Circuit High

Short in throttle actuator circuit

(2 trip detection logic)

  • Short in throttle actuator circuit

  • Diesel throttle body assembly

  • ECM

Comes on

DTC stored
Table 1. DTC Detection Drive Pattern

DTC No.

DTC Detection Drive Pattern

P2100

Turn the ignition switch to ON and wait for 10 seconds

(Monitor this DTC only once per driving cycle)

P2101

Engine idling for more than 30 seconds after engine started

P2102

P2103
Table 2. Related Date List

DTC No.

Data List

P2100

  • Actual Throttle Position

  • Target Throttle Position

  • Throttle Sensor Volt %

  • Throttle Motor DUTY

P2101

P2102

P2103
Tip:

  • If DTC P2100, P2101, P2102 or P2103 is stored, the following symptoms may appear:

    • Lack of power due to fail-safe operation

WIRING DIAGRAM

A358199E01

CAUTION / NOTICE / HINT

Note:

When replacing the ECM, perform ECM Initialization and Registration.

Click here

Tip:

  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing a new ECM, perform all of the initialization and registration procedures for the "Learning Values Write" function by following the instructions shown on the GTS display.

  • 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, and other data from the time the malfunction occurred.

PROCEDURE

  1. PERFORM ACTIVE TEST USING GTS (DIESEL THROTTLE TARGET ANGLE)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Enter the following menus: Powertrain / Engine and ECT / Active Test / Diesel Throttle Target Angle / Data List / Actual Throttle Position.

      Powertrain > Engine and ECT > Active Test

      Active Test Display

      Diesel Throttle Target Angle

      Data List Display

      Actual Throttle Position

    4. When changing the Active Test value from 10 to 100%, check that Actual Throttle Position smoothly changes to the set opening angle.

    OK

    Value smoothly changes to the set opening angle.

    Result

    Proceed to

    NEXT
    NEXT

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

    1. Disconnect the diesel throttle 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

      B25-2 (M+) - B212-50 (M+)

      Always

      Below 1 Ω

      B25-1 (M-) - B212-20 (M-)

      Always

      Below 1 Ω

      B25-2 (M+) or B212-50 (M+) - Body ground and other terminals

      Always

      10 kΩ or higher

      B25-1 (M-) or B212-20 (M-) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTORClick here

    OK

  3. INSPECT DIESEL THROTTLE BODY ASSEMBLY

    1. Inspect the diesel throttle body assembly.

      Click here

    Result

    Proceed to

    OK

    NG
    OK

    CHECK WHETHER DTC OUTPUT RECURS (DTC P2100, P2101, P2102 OR P2103)Click here

    NG

  4. REPLACE DIESEL THROTTLE BODY ASSEMBLY

    1. Replace the diesel throttle body assembly.

      Click hereClick here

    Result

    Proceed to

    NEXT
    NEXT

  5. CHECK WHETHER DTC OUTPUT RECURS (DTC P2100, P2101, P2102 OR P2103)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs

    4. Turn the ignition switch off and wait for 30 seconds or more.

    5. Turn the ignition switch to ON and wait for 10 seconds or more.

    6. Start the engine and wait for 30 seconds or more.

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

    8. Confirm that the pending DTC is not output again.

      Powertrain > Engine and ECT > Trouble Codes

      Result

      Result

      Proceed to

      DTC P2100, P2101, P2102 and/or P2103 is output

      A

      DTC is not output

      B
    B

    END

    A

  6. REPLACE ECM

    1. Replace the ECM.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here

  7. REPAIR OR REPLACE HARNESS OR CONNECTOR

    Result

    Proceed to

    NEXT
    NEXT

  8. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs

    4. Turn the ignition switch off and wait for 30 seconds or more.

    5. Turn the ignition switch to ON and wait for 10 seconds or more.

    6. Start the engine and wait for 30 seconds or more.

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

    8. Confirm that the pending DTC is not output again.

      Powertrain > Engine and ECT > Trouble Codes

    Result

    Proceed to

    NEXT
    NEXT

    END