Toyota Tundra Service Manual: Parts Location

PARTS LOCATION

ILLUSTRATION

*A

for Automatic Air Conditioning System

*B

for Manual Air Conditioning System

*1

BACK WINDOW GLASS

*2

ENGINE ROOM RELAY BLOCK, JUNCTION BLOCK

- DEFOGGER RELAY (DEF)

- DEFOG FUSE

- NOISE FILTER

*3

DRIVER SIDE JUNCTION BLOCK ASSEMBLY

- ECU-IG1 NO. 3 FUSE

*4

DLC3

*5

AIR CONDITIONING AMPLIFIER

*6

AIR CONDITIONING CONTROL ASSEMBLY

- REAR WINDOW DEFOGGER SWITCH

*7

DEFOGGER WIRE

-

-

    Operation Check

    Problem Symptoms Table

    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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