DTC    P2119    Throttle Actuator Control Throttle Body Range / Performance

for Preparation Click here


DESCRIPTION

The electronic throttle control system is composed of the throttle actuator, throttle position sensor, accelerator pedal position sensor, and ECM. The ECM operates the throttle actuator to regulate the throttle valve in response to driver inputs. 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.
DTC Detection Condition
Trouble Area
P2119
Throttle valve opening angle continues to vary greatly from the target opening angle (1 trip detection logic).
  1. Electronic throttle control system
  2. ECM
  3. Wire harness or connector

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 calculated 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. The ECM then illuminates the MIL and stores the DTC.

MONITOR STRATEGY


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

TYPICAL ENABLING CONDITIONS


Throttle actuator
ON
Throttle actuator duty calculation
Executing
Throttle position sensor failure
Not detected
Throttle actuator current-cut operation
Not executing
Throttle actuator power supply
4 V or higher
Throttle actuator failure
Not detected

TYPICAL MALFUNCTION THRESHOLDS


Either of the following conditions A or B is met
-
A. Difference between commanded closed throttle position and current closed throttle position
0.3 V or higher for 1 second
B. Difference between commanded open throttle position and current open throttle position
0.3 V or higher for 0.6 seconds

CONFIRMATION DRIVING PATTERN


A199316E07

  1. Connect the intelligent tester to the DLC3.
  2. Turn the power switch on (IG) and turn the tester on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC operation).
  4. Turn the power switch off and wait for 30 seconds.
  5. Turn the power switch on (IG) and turn the tester on [A].
  6. Put the engine in inspection mode (maintenance mode) (Click here).
  7. Start the engine.
  8. Idle the engine for 20 seconds.
  9. Enter the following menus: Powertrain / Engine and ECT / DTC [B].
  10. Read the pending DTCs.

    HINT:
    1. If a pending DTC is output, the system is malfunctioning.
    2. If a pending DTC is not output, perform the following procedure.

  11. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  12. Input the DTC: P2119.
  13. Check the DTC judgment result.

    Tester Display
    		Description
    NORMAL
    1. DTC judgment completed
    2. System normal
    ABNORMAL
    1. DTC judgment completed
    2. System abnormal
    INCOMPLETE
    1. DTC judgment not completed
    2. Perform driving pattern after confirming DTC enabling conditions
    UNKNOWN
    1. Unable to perform DTC judgment
    2. Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT:
    1. If the judgment result shows NORMAL, the system is normal.
    2. If the judgment result shows ABNORMAL, the system has a malfunction.
    3. If the judgment result shows INCOMPLETE or UNKNOWN, fully depress and release the accelerator pedal 3 times, and the check the DTC judgment result [C].


FAIL-SAFE

When this DTC, as well as other DTCs relating to electronic throttle control system malfunctions 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 5.5° throttle angle by the return spring. The ECM stops the engine and the vehicle can be driven using solely the hybrid system. 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 P2102 (Click here).

INSPECTION PROCEDURE

HINT:
  1. Refer to "Data List / Active Test" [Throttle Position Commanded, Throttle Position No. 1, Throttle Motor Current, Throttle Motor Duty (Open) and Throttle Motor Duty (Close)] (Click here).
  2. 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.

1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the tester on.

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

  1. Read the DTCs.
    Result 
    Result
    		Proceed to
    DTC P2119 is output
    		A
    DTC P2119 and other DTCs are output
    		B

    HINT:
    If any DTCs other than P2119 are output, troubleshoot those DTCs first.



B
GO TO DTC CHART (Click here)
A


2.READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the tester on.

  1. Clear the DTCs (Click here).

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

  1. Turn the power switch on (IG).

  1. Turn the tester on.

  1. Put the engine in inspection mode (maintenance mode) (Click here).

  1. Start the engine.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Position No. 1 and Throttle Position Command.

  1. Check the values displayed on the tester while fully depressing and releasing the accelerator pedal quickly.
    Result 
    Result
    		Proceed to
    Throttle Position No. 1 does not change
    		A
    Throttle Position No. 1 changes even a little
    		B

    HINT:
    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 4
A


3.INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR)

  1. Inspect the throttle body assembly (Click here).



NG
Go to step 6
OK


4.INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE)

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

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



NG
Go to step 6
OK


5.READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power e switch on (IG).

  1. Turn the tester on.

  1. Clear the DTCs (Click here).

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

  1. Turn the power switch on (IG) and turn the tester on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Throttle Position No. 1, Throttle Position No. 2 and Throttle Position Command.

  1. Check the values displayed on the tester while wiggling the ECM wire harness.

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

  1. Check for DTCs.


Result 
Result
Proceed to
Value in Data List changes when wire harness is wiggled, or DTC is output*
A
Other than above
B
*: 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).


B
Go to step 7
A

REPAIR OR REPLACE HARNESS OR CONNECTOR 

6.REPLACE THROTTLE BODY ASSEMBLY

  1. Replace the throttle body assembly (Click here).


NEXT


7.CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the tester on.

  1. Clear the DTCs (Click here).

  1. Put the engine in inspection mode (maintenance mode) (Click here).

  1. Allow the engine to idle for 15 seconds or more.

  1. Fully depress and release the accelerator pedal several times quickly.

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

  1. Read the DTCs.
    Result 
    Result
    		Proceed to
    DTC is not output
    		A
    DTC P2119 is output
    		B



B
REPLACE ECM (Click here)
A

END