Toyota Tundra Service Manual: 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

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Toyota Tundra Service Manual > Occupant Classification System: Occupant Classification ECU Malfunction (B1795)
DESCRIPTION DTC B1795 is set when a malfunction is detected in the occupant classification ECU. Troubleshoot DTC B1771 first when both DTCs B1771 and B1795 are present. DTC Code DTC Detection Condition Trouble Area B1795 Occupant classification ECU malfunction Occupant classification ECU HINT: When ...

Toyota Tundra Owners Manual