Brand:

Toyota

Model Name:

4Runner GRN210 215 UZN210 215

Manual:

Repair Manual

Section:

1Gr-Fe Engine Control System

Title:

Sfi System

  1. Description

  2. Monitor description

  3. Monitor strategy

  4. Typical enabling conditions

  5. Typical malfunction thresholds

  6. Fail-safe

  7. Wiring diagram

  8. Inspection procedure

  9. Check any other dtcs output (in addition to dtc p2119)

  10. Check whether dtc output recurs (dtc p2119)

DTC P2119 Throttle Actuator Control Throttle Body Range / Performance


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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 No.
DTC Detection Conditions
Trouble Areas
P2119
Throttle valve opening angle continues to vary greatly from target opening angle (1 trip detection logic)
  1. ETCS
  2. 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 sets the DTC.
If the malfunction is not repaired successfully, the DTC is set when the accelerator pedal is quickly released (to close the throttle valve) after the engine speed reaches 5,000 rpm by the accelerator pedal being fully depressed (fully open the throttle valve).

MONITOR STRATEGY


Related DTCs
P2119: Electronic throttle control system failure
Required Sensors / Components (Main)
Throttle actuator
Required Sensors / Components (Related)
-
Frequency of Operation
Continuous
Duration
1 second
MIL Operation
Immediate
Sequence of Operation
None

TYPICAL ENABLING CONDITIONS


The monitor will run whenever these DTCs are not present
None
System guard*
ON
*System guard is ON when following conditions are set:
-
Throttle actuator
ON
Throttle actuator duty calculation
Executing
Throttle position sensor
Fail determined
Throttle actuator current-cut operation
Not executing
Throttle actuator power supply
4 V or more
Throttle actuator
Fail determined

TYPICAL MALFUNCTION THRESHOLDS


Either of the following conditions is set:
Condition 1 or 2
1. Commanded closed throttle position - current closed throttle position
0.3 V or more
2. Commanded open throttle position - current open throttle position
0.3 V or more

FAIL-SAFE

When any of these DTCs, as well as other DTCs relating to ETCS (Electronic Throttle Control System) malfunctions, are set, the ECM enters fail-safe mode. During fail-safe mode, the ECM cuts the current to the throttle actuator off, and the throttle valve is returned to a 6° 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 ignition switch is then turned off.

WIRING DIAGRAM

Refer to DTC P2102 (Click here).

INSPECTION PROCEDURE

HINT:
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 be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.
1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2119)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch on.

  1. Turn the tester on.

  1. Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.

  1. Read DTCs.

    Result:

    Display (DTC Output)
    		Proceed to
    P2119
    		A
    P2119 and other DTCs
    		B
    HINT:
    If any DTCs other than P2119 are output, troubleshoot those DTCs first.


Bnext
GO TO DTC CHART
A
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2.CHECK WHETHER DTC OUTPUT RECURS (DTC P2119)

  1. Connect the intelligent tester to the DLC3 (Procedure "A").

  1. Turn the ignition switch on (Procedure "B").

  1. Turn the tester on (Procedure "C").

  1. Clear DTCs (Click here) (Procedure "D").

  1. Allow the engine to idle for 15 seconds (Procedure "E").

    CAUTION:
    Exercise extreme care and take precautions at procedure "F" and "G" below. Failure to do so may result in the vehicle unexpectedly rolling away.

  1. Securely apply the parking brake and move the gear selector lever to the D position (Procedure "F").

  1. While depressing the brake pedal securely, fully depress the accelerator pedal for 5 seconds (Procedure "G").

  1. Select the following menu items on the tester: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES (Procedure "H").

  1. Read DTCs (Procedure "I").

    HINT:
    The voltage output of the throttle position sensor can be checked during procedure "G" using the intelligent tester. Variations in the voltage output indicate that the throttle actuator is in operation. To check the voltage output using the intelligent tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / THROTTLE POS #1.
    OK:
    No DTC output.


NGnext
REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY
OK
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NORMAL