SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P211900, P211904, P211977

DTC Code DTC Name
P211900 Throttle Actuator "A" Control Throttle Body Range/Performance
P211904 Throttle Actuator "A" Control Throttle Body Range/Performance System Internal Failure
P211977 Throttle Actuator "A" Control Throttle Body Range/Performance Commanded Position Not Reachable

DESCRIPTION

The electronic throttle control system is composed of the throttle actuator, throttle position sensor, and ECM. The ECM operates the throttle actuator to regulate the throttle valve in response to a request from the hybrid system. The throttle position sensor detects the opening angle of the throttle valve, and provides the ECM with feedback so that the throttle valve can be appropriately controlled by the ECM.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P211900 Throttle Actuator "A" Control Throttle Body Range/Performance The throttle valve opening angle continues to vary greatly from the target opening angle (1 trip detection logic).

  • Electronic throttle control system

  • Wire harness or connector

  • ECM

 Comes on DTC stored SAE: P2119
P211904 Throttle Actuator "A" Control Throttle Body Range/Performance System Internal Failure The throttle valve opening angle continues to vary greatly from the target opening angle (1 trip detection logic).

  • Electronic throttle control system

  • Wire harness or connector

  • ECM

 Comes on DTC stored SAE: P2119
P211977 Throttle Actuator "A" Control Throttle Body Range/Performance Commanded Position Not Reachable The throttle valve opening angle continues to vary greatly from the target opening angle (1 trip detection logic).

  • Electronic throttle control system

  • Wire harness or connector

  • ECM

 Comes on DTC stored SAE: P2119

MONITOR DESCRIPTION

The ECM determines the actual opening angle of the throttle valve from the throttle position sensor signal. The actual opening angle is compared to the target opening angle commanded by the ECM. If the difference between these two values is outside the standard range, the ECM interprets this as a malfunction in the electronic throttle control system, illuminates the MIL and stores this DTC.

MONITOR STRATEGY

Required Sensors/Components Throttle actuator (throttle body with motor assembly)
Frequency of Operation Continuous

TYPICAL ENABLING CONDITIONS

System guard* judge condition On
*: System guard is on when the following conditions are met -
Throttle actuator On
Throttle actuator duty calculation Executing
Throttle position sensor fail Not detected
Throttle actuator current-cut operation Not executing
Throttle actuator power supply 4 V or higher
Throttle actuator fail Not detected

TYPICAL MALFUNCTION THRESHOLDS

Either of the following conditions is met 1 or 2
1. Difference between commanded closed throttle position and current closed throttle position 0.3 V or higher
2. Difference between commanded open throttle position and current open throttle position 0.3 V or higher

CONFIRMATION DRIVING PATTERN

B004RVVE35

  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG).

  3. Turn the GTS on.

  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

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

  6. Turn the power switch on (IG) [A].

  7. Turn the GTS on.

  8. Put the engine in Inspection Mode (2WD for measuring Exhaust Gas).

    Click here

  9. Start the engine.

  10. Idle the engine for 20 seconds.

  11. Enter the following menus: Powertrain / Engine / Trouble Codes [B].

  12. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  14. Input the DTC: P211900, P211904 or P211977.

  15. Check the DTC judgment result.

    GTS Display Description
    NORMAL

    • DTC judgment completed

    • System normal
    ABNORMAL

    • DTC judgment completed

    • System abnormal
    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system is malfunctioning.

    • If the judgment result shows INCOMPLETE, fully depress and release the accelerator pedal 3 times, and then check the DTC judgment result [C].

    • During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, perform step [C] after charge control has completed.

FAIL-SAFE

When this DTC is stored, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator, and the throttle valve is returned to a 7° throttle valve opening angle by the return spring. The ECM then adjusts the engine output, by controlling the fuel injection (intermittent fuel cut) and ignition timing, in accordance with the engine torque request signal sent from the hybrid vehicle control ECU, to allow the vehicle to continue being driven at a minimal speed. If the accelerator pedal is depressed firmly and gently, the vehicle can be driven slowly.

Fail-safe mode continues until a pass condition is detected, and the power switch is then turned off.

WIRING DIAGRAM

Refer to DTC P210014.

Click here

CAUTION / NOTICE / HINT

Note


  • Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.

    Click here

    (Select Powertrain in Health Check and then check the time stamp data.)

    Click here

  • If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.

    Click here

Tech Tips


  • Refer to "Data List / Active Test" [Throttle Position Sensor No.1 Voltage, Throttle Position Sensor No.2 Voltage, Throttle Position Command, Throttle Motor Current, Throttle Motor Duty Ratio (Open) and Throttle Motor Duty Ratio (Close)].

    Click here

  • Read freeze frame data using the GTS. 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 ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P211900, P211904 OR P211977)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC P211900, P211904 or P211977 is output A
      DTC P211900, P211904 or P211977 and other DTCs are output B

      Tech Tips

      If any DTCs other than P211900, P211904 or P211977 are output, troubleshoot those DTCs first.


    B

    GO TO DTC CHART Click here

    A

  2. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  3. READ VALUE USING GTS (THROTTLE POSITION)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No.1 Voltage and Throttle Position Command.


      Powertrain > Engine > Data List
      Tester Display
      Throttle Position Sensor No.1 Voltage
      Throttle Position Command

    5. Read the values displayed on the GTS while fully depressing and releasing the accelerator pedal quickly.

      Tech Tips

      During charge control, the engine speed is set at idle. Therefore, the engine speed will not increase when the accelerator pedal is depressed. In this case, perform this step after charge control has completed.

      Result
      Result Proceed to
      Throttle Position Sensor No.1 Voltage does not change A
      Throttle Position Sensor No.1 Voltage changes even a little B

      Tech Tips

      When a DTC is output, the system changes to fail-safe mode. Therefore, only use the data up until the time the DTC is stored for confirmation.


    B

    GO TO STEP 5 Click here

    A

  4. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR)


    1. Inspect the throttle body with motor assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY Click here

    OK

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


    1. Check for foreign matter 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.

      Tech Tips

      Perform "Inspection After Repair" after cleaning the throttle body with motor assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 9 Click here

    OK

  6. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  7. READ VALUE USING GTS (THROTTLE POSITION)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Data List / Throttle Position Sensor No.1 Voltage, Throttle Position Sensor No.2 Voltage and Throttle Position Command.


      Powertrain > Engine > Data List
      Tester Display
      Throttle Position Sensor No.1 Voltage
      Throttle Position Sensor No.2 Voltage
      Throttle Position Command

    5. Read the values displayed on the GTS while wiggling the ECM wire harness.

    6. Enter the following menus: Powertrain / Engine / Trouble Codes.

    7. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      Value in Data List changes when wire harness is wiggled, or DTC is output A
      Other than above B

    B

    GO TO STEP 10 Click here

    A

  8. REPAIR OR REPLACE HARNESS OR CONNECTOR (THROTTLE BODY WITH MOTOR ASSEMBLY - ECM)


    1. As the DTC was stored due to a change in the contact resistance of the connector, repair or replace the wire harness or connector.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    END

  9. REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY


    1. Replace the throttle body with motor assembly.

      Click here

      Tech Tips

      Perform "Inspection After Repair" after replacing the throttle body with motor assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  10. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

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

      Result
      Proceed to
      NEXT

    NEXT

  11. CHECK WHETHER DTC OUTPUT RECURS (DTC P211900, P211904 OR P211977)


    1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    2. Enter the following menus: Powertrain / Engine / Trouble Codes.

    3. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTC P211900, P211904 or P211977 is output B

    A

    END

    B

    REPLACE ECM Click here