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 > Touch Select 2-4 And High-low System: Transfer Synchronization Actuator Circuit Open (P17A5,P17A6)
    DESCRIPTION This DTC is detected when an open circuit or short to ground is detected in the solenoid coil drive circuit. DTC Code DTC Detection Condition Diagnosis Condition Malfunction Status Malfunction Time Other Trouble Area P17A5 Ignition switch ON (when not switching between 2WD and 4H) Open c ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2026 Copyright www.ttundra.com
    0.0104