Sfi System Diagnosis System

Engine Hybrid System. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
1Gr-Fe Engine Control. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

  1. M-OBD

  1. NORMAL MODE AND CHECK MODE

  1. 2 TRIP DETECTION LOGIC

  1. FREEZE FRAME DATA

  1. BATTERY VOLTAGE

  1. MIL (Malfunction Indicator Lamp)

  1. ALL READINESS

Sfi System -- Diagnosis System



M-OBD
Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25.1Gr-Fe Engine Control.Sfi System.Sfi System Diagnosis System
  1. When troubleshooting Multiplex On-Board Diagnostic (M-OBD) vehicles, the vehicle must be connected to the intelligent tester. Various data output from the ECM can then be read.
  2. OBD regulations require that the vehicle on-board computer illuminates the 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.
  3. In addition, the applicable DTCs are stored in the ECM memory. If the malfunction does not recur in 3 consecutive trips, the MIL turns off automatically but the DTCs remain recorded in the ECM memory.

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 simulating malfunction symptoms and increasing the ability of the system to detect malfunctions, including intermittent problems (intelligent tester only).

2 TRIP DETECTION LOGIC
  1. 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 next subsequent drive cycle, the MIL is illuminated (2nd trip).

FREEZE FRAME DATA
  1. 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, as well as other data recorded at the time of a malfunction.

BATTERY VOLTAGE
Standard voltage:
11 to 14 V
  1. If voltage is below 11 V, replace or recharge the battery before proceeding.

MIL (Malfunction Indicator Lamp)

  1. The MIL is illuminated when the ignition switch is first turned to ON (the engine is not running).

  2. The MIL should turn 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 first turned to ON, check the MIL circuit (HILUX_TGN26 RM000000WZ10U7X.html).

ALL READINESS
HINT:
  1. With "All Readiness" you can check whether or not the DTC judgment has been completed by using the intelligent tester.
  2. You should check "All Readiness" after simulating malfunction symptoms or for validation after finishing repairs.

  1. Connect the intelligent tester to the DLC3.

  2. Turn the ignition switch to ON.

  3. Turn the tester on.

  4. Clear the DTCs (HILUX_TGN26 RM000000PDK0X5X.html).

  5. Perform the DTC judgment driving pattern to run the DTC judgment.

  6. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

  7. Input the DTCs to be confirmed.

  8. Check the DTC judgment result.

    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. You should perform driving pattern after confirming DTC enabling conditions
    N/A
    1. Unable to perform DTC judgment
    2. Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit