Toyota Yaris: Sfi System / Diagnosis System

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / Diagnosis System

DIAGNOSIS SYSTEM

EURO-OBD (EUROPEAN SPEC)

When troubleshooting Europe On-Board Diagnostic (Euro-OBD) vehicles, an OBD scan tool (complying with ISO 15765-4) must be connected to the vehicle. Various data output from the vehicle's ECM can then be read.

Euro-OBD regulations require that the vehicle's on-board computer illuminate the Malfunction Indicator Lamp (MIL) on the instrument panel when the computer detects a malfunction in:

  1. The emission control system components.
  2. The powertrain control components which affect vehicle emissions.
  3. The computer

In addition, the applicable Diagnostic Trouble Codes (DTCs) prescribed by ISO 15765-4 are stored in the ECM memory. If the malfunction does not reoccur in 3 consecutive trips, the MIL turns off automatically but the DTCs remain stored in the ECM memory.

To check DTCs, connect the GTS or OBD scan tool to the Data Link Connector 3 (DLC3) of the vehicle.

The scan tool displays DTCs, the Freeze Frame Data and a variety of engine data.

The DTCs and Freeze Frame Data can be cleared using the scan tool.

Click here

NORMAL MODE AND CHECK MODE

The diagnosis system operates in normal mode during normal vehicle use. In normal mode, 2 trip detection logic is used to ensure accurate detection of malfunctions. Check mode is also available as an option for technicians. In check mode, 1 trip detection logic is used for duplicating malfunction symptoms and increasing the system's ability to detect malfunctions, including intermittent problems (GTS only).

2 TRIP DETECTION LOGIC

When a malfunction is first detected, the malfunction is temporarily stored in the ECM memory (1st trip). If the same malfunction is detected during the subsequent drive cycle, the MIL is illuminated (2nd trip).

DLC3 (Data Link Connector 3)

(a) Check the DLC3.

Click here

FREEZE FRAME DATA

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 moving or stationary, whether the engine was warmed up or not, whether the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

AUXILIARY BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is less than 11 V, recharge or replace the auxiliary battery.

MIL (Malfunction Indicator Lamp)

(a) The MIL is illuminated when the ignition switch is turned ON (with the engine not running).

(b) The MIL turns off when the engine is started. If the MIL remains illuminated, the diagnosis system has detected a malfunction or abnormality in the system.

HINT:

If the MIL is not illuminated when the ignition switch is turned ON, check the MIL circuit.

Click here

ALL READINESS

HINT:

  • With "All Readiness", you can use the GTS to check whether or not DTC judgment has been completed.
  • You should check "All Readiness" after simulating malfunction symptoms or for validation after finishing repairs.

(a) Connect the GTS to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the GTS on.

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Turn the ignition switch off and wait for at least 30 seconds.

(f) Turn the ignition switch to ON.

(g) Turn the GTS on.

(h) Perform the DTC judgment driving pattern to run the DTC judgment.

(i) Enter the following menus: Powertrain / Engine / Utility / All Readiness.

Powertrain > Engine > Utility

Tester Display

All Readiness

(j) Input the DTCs to be confirmed.

(k) 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 the driving pattern after confirming DTC enabling conditions

DIAGNOSIS RELATED INFORMATION

HINT:

  • If the detection conditions of certain DTCs are met before a malfunction can be confirmed, the ECM will store Diagnosis Related Information. Vehicle condition information from when the detection conditions were met can be checked using the Diagnosis Related Information. Diagnosis Related Information should be used as a reference only, and should not be relied upon solely when determining whether a part is faulty or not.
  • Clearing DTCs will also clear Diagnosis Related Information.
  • DTCs and Diagnosis Related Information are saved in the GTS at the same time.

(a) Connect the GTS to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the GTS on.

(d) Enter the following menus: Powertrain / Engine / Utility / Diagnosis Related Information.

Powertrain > Engine > Utility

Tester Display

Diagnosis Related Information

(e) Select a Diagnosis Related Information item to display its details.

    Terminals Of Ecm

    TERMINALS OF ECM HINT: The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below. The appropriate conditions for checking each pair of the terminals are also indicated...

    Dtc Check / Clear

    DTC CHECK / CLEAR NOTICE: When the diagnosis system is changed from normal mode to check mode or vice versa, all DTCs and Freeze Frame Data recorded in normal mode are cleared...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Removal


    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are replaced during millimeter wave radar sensor assembly removal/installation are shown below. Necessary Procedure After Parts Removed/Installed/Replaced Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link Millimeter wave radar sensor assembly Adjust millimeter wave radar sensor assembly Dynamic Radar Cruise Control System Lane Tracing Assist System Front Radar Sensor System Pre-collision System Auto High Beam System Triangle Target: Flat Surface Target: Driving Adjustment: Update ECU security key Vehicle control history (RoB) are stored PROCEDURE 1...

    Toyota Yaris XP210 (2020-2022) Owner's Manual: Replacing Windshield Wiper Blades


    When the wipers no longer clean well, the blades are probably worn or cracked. Replace the wiper blades using the following procedure. Raise the wiper arm and turn the blade assembly to expose the plastic locking clip.Compress the clip and slide the assembly downward; then lift it off the arm...

    Categories

    Fuel-Filler Lid and Cap

    WARNING

    When removing the fuel-filler cap, loosen the cap slightly and wait for any hissing to stop, then remove it

    Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness if ingested. Fuel spray is released when there is pressure in the fuel tank and the fuel-filler cap is removed too quickly.

    read more

     
    Copyright © 2022 www.toyaris4.com