Система Ecd Система Диагностики. Corolla Auris
Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
DESCRIPTION
NORMAL MODE AND CHECK MODE
2 TRIP DETECTION LOGIC
ДАННЫЕ ФИКСИРОВАННОГО НАБОРА ПАРАМЕТРОВ
DLC3 (Data Link Connector 3)
INSPECT BATTERY VOLTAGE
CHECK MIL
Система Ecd -- Система Диагностики |
When troubleshooting Multiplex OBD (M-OBD) vehicles, the vehicle must be connected to the intelligent tester. Various data output from the vehicle's Engine Control Module (ECM) can then be read.
The Malfunction Indicator Lamp (MIL) is illuminated when the vehicle's onboard computer detects a malfunction in the computer itself or in drive system components. In addition, the applicable Diagnostic Trouble Codes (DTCs) are recorded in the ECM memory (See page Нажмите здесь).
When the malfunction does not recur, the MIL stays illuminated until the ignition switch is turned off, and the MIL turns OFF when the engine is started. Be aware that the DTCs remain recorded in the ECM memory.
To check DTCs, connect the intelligent tester to the DLC3 on the vehicle.
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).
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) |
Check DLC3 (See page Нажмите здесь).
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 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).
When the engine is started, the MIL should turn off.