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

Toyota Tundra Service Manual / Audio, Visual, Telematics / Audio / Video / Audio And Visual System / Illumination for Panel Switch does not Come on with Tail Switch ON

PROCEDURE

1.

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

    Illumination Circuit

    Microphone Circuit between Microphone and Radio Receiver

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