April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Diagram

SYSTEM DIAGRAM

Fig 1: SFI System - System Diagram (1 Of 5)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: SFI System - System Diagram (2 Of 5)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: SFI System - System Diagram (3 Of 5)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: SFI System - System Diagram (4 Of 5)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 5: SFI System - System Diagram (5 Of 5)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
COMMUNICATION WITH OTHER COMPUTERS

Fig 6: SFI System - Communication Diagram
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

Refer to CAN COMMUNICATION SYSTEM (See SYSTEM DIAGRAM ).

COMMUNICATION SIGNALS

COMMUNICATION SIGNALS

Transmitter	Receiver	Signal	Communication Line
ECM	Skid Control ECU	Intake air temperature signal Check mode signal Engine rpm signal Throttle position signal Cruise control operation signal VSC prohibition requirement signal Shift position signal Destination signal Engine system malfunction signal Ignition timing signal	CAN
Skid Control ECU	ECM	VSC/TRC operation signal VSC/TRC system malfunction signal Fuel cut requirement signal Cruise control cancel requirement signal Torque requirement signal	CAN

HINT:

Refer to CAN COMMUNICATION SYSTEM (See SYSTEM DIAGRAM ).