Система Ecd Система Диагностики. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Управления Двигателем 2Ad-Fhv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

  1. DESCRIPTION

  1. NORMAL MODE AND CHECK MODE

  1. 2 TRIP DETECTION LOGIC

  1. ДАННЫЕ ФИКСИРОВАННОГО НАБОРА ПАРАМЕТРОВ

  1. DLC3 (Data Link Connector 3)

  1. INSPECT BATTERY VOLTAGE

  1. CHECK MIL

Система Ecd -- Система Диагностики



DESCRIPTION


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Управления Двигателем 2Ad-Fhv.Система Ecd.Система Ecd Система Диагностики

  1. When troubleshooting a Euro-OBD (On-Board Diagnostic) vehicle, an intelligent tester or OBD scan tool must be connected to the DLC3 (Data Link Connector 3) of the vehicle. Various data in the vehicle's ECM (Engine Control Module) can be then read.

  2. Euro-OBD regulations require that the vehicle's on-board computer illuminates the MIL (Malfunction Indicator Lamp) in the instrument panel when the computer detects malfunctions in:

    1. The emission control system and components.

    2. The power train control components (which affect vehicle emission).

    3. The computer itself. If the malfunction does not recur in 3 consecutive trips, the MIL turns off automatically but the DTCs remain recorded in the ECM memory.

  3. To check the DTCs, connect an intelligent tester to the DLC3. The tester displays DTCs, freeze frame data, and variety of engine data. The DTCs and freeze frame data can be cleared with the tester (refer to DTC CHECK/CLEAR (See page Нажмите здесь)).


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 to technicians as an option. In check mode, "1 trip detection logic" is used for simulating malfunction symptoms and increasing the system's ability to detect malfunctions, including intermittent malfunctions (See page Нажмите здесь).

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 next subsequent drive cycle, the MIL is illuminated (2nd trip).

ДАННЫЕ ФИКСИРОВАННОГО НАБОРА ПАРАМЕТРОВ
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.

DLC3 (Data Link Connector 3)

  1. Check DLC3 (See page Нажмите здесь).


INSPECT BATTERY VOLTAGE
If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.
Battery voltage:
11 to 14 V

CHECK MIL

  1. Check that the MIL illuminates when the ignition switch is turned on (IG).
    If the MIL does not illuminate, there is a problem in the MIL circuit (See page Нажмите здесь).

  2. When the engine is started, the MIL should turn off.