Toyota Tundra Service Manual: System Diagram

SYSTEM DIAGRAM

Communication Table

Sender	Receiver	Signal	Communication Method
Center airbag sensor assembly	Main body ECU (driver side junction block assembly)	Front seat inner belt assembly LH buckle switch	CAN
Center airbag sensor assembly	Combination meter assembly	Front seat inner belt assembly RH buckle switch Occupant detection
Main Body ECU (Multiplex Network Body ECU)	Combination meter assembly	Front seat inner belt assembly LH buckle switch Parking brake switch
ECM	Combination meter assembly	Shift position

Toyota Tundra Service Manual > Vehicle Stability Control System: Open in Stop Light Switch Circuit (C1425)
DESCRIPTION The skid control ECU (brake actuator assembly) receives stop light switch assembly signals and uses them to determine whether or not the brakes are applied. The skid control ECU (brake actuator assembly) has a detection circuit that it uses to detect an open in the stop light input line. ...

Toyota Tundra Owners Manual