Toyota Tundra Service Manual: Illumination for Panel Switch does not Come on with Tail Switch ON

PROCEDURE

(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