Toyota Tundra Service Manual: Components

Toyota Tundra Service Manual / Power Source, Network / Power Distribution / Main Body Ecu / Components

COMPONENTS

ILLUSTRATION

*1

DRIVER SIDE JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU

*2

MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

*3

DRIVER SIDE JUNCTION BLOCK ASSEMBLY

*4

WIRING HARNESS BRACKET

N*m (kgf*cm, ft.*lbf): Specified torque

●

Non-reusable part
    Main Body Ecu

    Installation

    See More:

    Toyota Tundra Service Manual > Sfi System: ECM Power Source Circuit
    DESCRIPTION When the ignition switch is turned to ON, the battery voltage is applied to the IGSW terminal of the ECM. The output signal from the MREL terminal of the ECM causes a current to flow to the coil, closing the contacts of the integration relay (EFI relay) and supplying power to terminals + ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2026 Copyright www.ttundra.com
    0.016