Toyota Tundra Service Manual: Parts Location

PARTS LOCATION

ILLUSTRATION

*1

UNLOCK WARNING SWITCH ASSEMBLY

*2

TRANSPONDER KEY COIL

*3

TRANSPONDER KEY ECU ASSEMBLY

*4

ECM

*5

COMBINATION METER ASSEMBLY (SECURITY INDICATOR LIGHT)

*6

MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

*7

DRIVER SIDE JUNCTION BLOCK ASSEMBLY

- ECU-B NO.1 FUSE

- ECU-IG2 NO.3 FUSE

- IG2-NO.2 RELAY

*8

DLC3

    Key Cannot be Registered

    Precaution

    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 + ...

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