Toyota Tundra Service Manual: Screen Flicker or Color Distortion

PROCEDURE

1.

CHECK DISPLAY SETTING

(a) Reset the display settings (contrast and brightness) and check that the screen appears normal.

OK:

The display returns to normal.

OK

END

NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Reverse Signal Circuit

    System Description

    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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    Toyota Tundra Service Manual

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