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

PROCEDURE

(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

(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:

HINT:

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

(c) Check that the display for "ADIM/TCAN" changes between DIM and BRIGHT according to the light control switch operation.

OK:

A

REPLACE NAVIGATION RECEIVER ASSEMBLY

B

REPLACE NAVIGATION RECEIVER ASSEMBLY

C

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE