Sfi System Diagnosis System

Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
2Az-Fe Engine Control System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. EURO-OBD (EUROPE)

  1. M-OBD (EXCEPT EUROPEAN SPEC.)

  1. NORMAL MODE AND CHECK MODE

  1. 2-TRIP DETECTION LOGIC

  1. DLC3 (Data Link Connector 3)

  1. INSPECT BATTERY VOLTAGE

  1. CHECK MIL

Sfi System -- Diagnosis System



EURO-OBD (EUROPE)
When troubleshooting Europe On-Board Diagnostic (Euro-OBD) vehicles, the vehicle must be connected to an OBD scan tool (complying with ISO 15765-4). 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:
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.2Az-Fe Engine Control System.Sfi System.Sfi System Diagnosis System

  1. The emission control system components

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



    3. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.2Az-Fe Engine Control System.Sfi System.Sfi System Diagnosis System

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

    HINT:
    When a problem is detected, "CHECK ENGINE SYSTEM" appears in the multi-information display (the combination's MIL does not illuminate).
    To check DTCs, connect the intelligent tester or OBD scan tool to the Data Link Connector3 (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 erased the scan tool (RAV4_ACA30 RM000000PDK0AJX.html).

M-OBD (EXCEPT EUROPEAN SPEC.)
When troubleshooting Multiplex On-Board Diagnostic (M-OBD) vehicle, the vehicle must be connected to the intelligent tester. Various data output from the ECM can then be read.
OBD regulations require that the vehicle's on-board computer illuminate the MIL on the instrument panel when the computer detects a malfunction in:
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.2Az-Fe Engine Control System.Sfi System.Sfi System Diagnosis System

  1. The emission control system/components

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

  3. The computer
    In addition, the applicable DTCs are recorded 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 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 (intelligent tester 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 again after the ignition switch is turned off and then on (IG), the MIL illuminated.
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.2Az-Fe Engine Control System.Sfi System.Sfi System Diagnosis System

DLC3 (Data Link Connector 3)
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
HINT:
Connect the cable of an intelligent tester to the DLC3, turn the ignition switch on (IG) and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester.
If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle.
If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself. Consult the Service Department listed in the tester's instruction manual.

Symbol
Terminal No.
Name
Reference terminal
Result
Condition
SIL
7
Bus "+" line
5 - Signal ground
Pulse generation
During transmission
CG
4
Chassis ground
Body ground
1Ω or less
Always
SG
5
Signal ground
Body ground
1Ω or less
BAT
16
Battery positive
Body ground
9 to 14 V
CANH
6
CAN "High" Line
14 - CANL
54 to 69 Ω
Ignition switch off*
Battery positive
6 kΩ or higher
4 - CG
200 Ω or higher
CANL
14
CAN "Low" Line
Battery positive
6 kΩ or higher
4 - CG
200 Ω or higher
NOTICE:
*: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, other switches and doors.

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

CHECK MIL

  1. Check that the MIL illuminate when the ignition switch is turned on (IG).
    If the MIL does not illuminate, there is a problem in the MIL circuit (RAV4_ACA30 RM000000WZ109ZX.html).

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