Sfi System - P2119

Brand:

Toyota

Model Name:

4Runner GRN210 215 UZN210 215

Manual:

Repair Manual

Section:

2Uz-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 dtc 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 that operates the throttle valve, the throttle position sensor that detects the opening angle of the throttle valve, the accelerator pedal position sensor that detects the accelerator pedal position, and the ECM that controls the ETCS system.
The ECM operates the throttle actuator to position the throttle valve for proper response to driver inputs. The throttle position sensor detects the opening angle of the throttle valve and provides this signal to the ECM so that the ECM can regulate the throttle actuator.

DTC No.
DTC Detection Condition
Trouble Area
P2119
Throttle opening angle continues to vary greatly from target throttle opening angle (1 trip detection logic)
  1. ETCS
  2. ECM

MONITOR DESCRIPTION

The ECM determines the "actual" throttle angle based on the throttle position sensor signal. The "actual" throttle position is compared to the "target" throttle position commanded by the ECM. If the difference of these 2 values exceeds a specified limit, the ECM interprets this as a fault in the ETCS system. The ECM turns on the MIL and sets a DTC.

MONITOR STRATEGY


Related DTCs
P2119: ETCS malfunction
Required Sensors/Components (Main)
Throttle actuator motor
Required Sensors/Components (Related)
Throttle position sensor
Frequency of Operation
Continuous
Duration
1 second
MIL Operation
Immediate
Sequence of Operation
None

TYPICAL ENABLING CONDITIONS


Monitor will run whenever following DTCs are not present
None
System guard*
ON
*System guard is ON when the following conditions set
-
Throttle actuator
ON
Throttle actuator duty calculation
Executing
TP sensor
Fail determined
Throttle actuator current-cut operation
Not executing
Throttle actuator power supply
4 V or higher
Throttle actuator
Fail determined

TYPICAL MALFUNCTION THRESHOLDS


Either of following conditions A or B is met
Condition 1 or 2
1. Commanded closed TP - current closed TP
0.3 V or more
2. Commanded open TP - current open TP
0.3 V or more

FAIL-SAFE

When any of these DTCs, as well as other DTCs relating to Electronic Throttle Control System (ETCS) 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 16°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 DTC OUTPUT (IN ADDITION TO DTC P2119)

  1. Connect the intelligent tester to the DLC3 with CAN VIM.

  1. Turn the ignition switch ON.

  1. Enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES.

  1. Read the 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 with CAN VIM [A].

  1. Turn the ignition switch ON [B].

  1. Turn the tester ON [C].

  1. Clear DTCS [D].

  1. Allow the engine to idle for 15 seconds [E].

    NOTICE:
    Exercise extreme care and take precautions at steps [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 [F].

  1. While depressing the brake pedal securely, fully depress the accelerator pedal for 5 seconds [G].

  1. On the tester, enter the following menus: DIAGNOSIS / ENHANCED OBD II / DTC INFO / CURRENT CODES [H].

  1. Read DTCs [I].

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


NGnext
REPLACE THROTTLE BODY
OK
next down
NORMAL