Diagnostic trouble code P2119 3UR-FE Land Cruiser

DESCRIPTION

MONITOR DESCRIPTION

FAIL-SAFE

WIRING DIAGRAM

INSPECTION PROCEDURE

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

READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)

INSPECT THROTTLE BODY ASSEMBLY (RESISTANCE OF THROTTLE ACTUATOR)

INSPECT THROTTLE BODY ASSEMBLY (VISUALLY CHECK THROTTLE VALVE)

READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)

REPLACE THROTTLE BODY ASSEMBLY

CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)

DTC P2119 Throttle Actuator Control Throttle Body Range / Performance

Description

The Electronic Throttle Control System (ETCS) is composed of the throttle actuator, Throttle Position (TP) sensor, Accelerator Pedal Position (APP) sensor, and ECM. The ECM operates the throttle actuator to regulate the throttle valve in response to driver inputs. The TP 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 Code	DTC Detection Condition	Trouble Area
P2119	The throttle valve opening angle continues to vary greatly from the target opening angle (1 trip detection logic).	ETCS ECM

Monitor description

The ECM determines the actual opening angle of the throttle valve from the TP 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 ETCS. The ECM then illuminates the MIL and stores the DTC. If the malfunction is not repaired successfully, the DTC is stored when the accelerator pedal is quickly released (to close the throttle valve) after the engine speed reaches 5000 rpm by the accelerator pedal being fully depressed (fully open the throttle valve).

FAIL-SAFE

When this DTC, or other DTCs relating to ETCS (Electronic Throttle Control System) malfunctions are 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 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 accelerator pedal opening angle, to allow the vehicle to continue 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 engine switch is then turned off.

Wiring diagram

Refer to DTC P2102 ( onclick="javascript:openSeePage('seepage', 'RM000000PFU0M5X_07');return false;">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)] .
2. Read freeze frame data using the intelligent tester. 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.

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

1. Connect the intelligent tester to the DLC3.

2. Turn the engine switch on (IG).

3. Turn the tester on.

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

5. Read DTCs.

   Result

   Result	Proceed to
   P2119 is output	A
   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

A

2.READ VALUE USING INTELLIGENT TESTER (THROTTLE POSITION)

1. Connect the intelligent tester to the DLC3.

2. Turn the engine switch on (IG).

3. Turn the tester on.

4. Clear DTCs .

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

6. Turn the engine switch on (IG).

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

8. 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 .

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. 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.

2. Turn the engine switch on (IG).

3. Turn the tester on.

4. Clear DTCs .

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

6. Turn the engine switch on (IG).

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

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

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

10. 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 .

B	Go to step 7

A
REPAIR OR REPLACE HARNESS OR CONNECTOR

6.REPLACE THROTTLE BODY ASSEMBLY

1. Replace the throttle body assembly .

NEXT

7.CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)

1. Connect the intelligent tester to the DLC3.

2. Turn the engine switch on (IG).

3. Turn the tester on.

4. Clear DTCs .

5. Start the engine.

6. Allow the engine to idle for 15 seconds.

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

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

9. Read DTCs.

   Result

   Result	Proceed to
   No DTC is output	A
   P2119 is output	B

B	REPLACE ECM

A
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