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 > Engine Immobiliser System (w/o Smart Key System): Antenna Coil Open / Short (B2784)
DESCRIPTION When an open or short circuit is detected in the transponder key amplifier built into the transponder key ECU assembly, the transponder key ECU assembly stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B2784 Antenna Coil Open / Short The antenna coil in t ...

Toyota Tundra Owners Manual