Toyota Tundra Service Manual: Display does not Dim when Light Control Switch is Turned ON

Toyota Tundra Service Manual / Audio, Visual, Telematics / Audio / Video / Audio And Visual System / Display does not Dim when Light Control Switch is Turned ON

PROCEDURE

1.

CHECK IMAGE QUALITY SETTING

(a) Display the "Display" screen.

(b) Turn the light control switch to the tail or head position.

(c) Check if "Day Mode" on the display adjustment screen is on.

OK:

"Day Mode" setting is off

NG

TURN "Day Mode" SETTING OFF
OK

2.

CHECK VEHICLE SIGNAL (OPERATION CHECK)

(a) Enter the "Vehicle Signal Check Mode" screen. [Refer to Check Vehicle Signal in Operation Check (See page )]

(b) Check that the display for "TAIL" changes between ON and OFF according to the light control switch operation.

OK:

Light Control Switch

Display

Tail or head

ON

Off

OFF

HINT:

This display is updated once per second. As a result, it is normal for the display to lag behind the actual switch operation.

Result

Result

Proceed to

OK (for Column Shift Type)

A

OK (for Floor Shift Type)

B

NG

C
A

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

B

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

C

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Disc cannot be Inserted or is Ejected Right After Insertion

    Display Signal Circuit between Radio Receiver and Extension Module

    See More:

    Toyota Tundra Service Manual > Power Window Control System(w/ Jam Protection Function): All Power Windows does not Operate with Door Key Cylinder
    DESCRIPTION When the driver door key cylinder (key linked switch) is turned, the following occurs: 1) the door lock motor receives the signal; 2) the main body ECU (multiplex network body ECU) sends the signal to the power window regulator motors; and 3) the power window motors are activated. PROCED ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2026 Copyright www.ttundra.com
    0.0222