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 > Sfi System: A/F Sensor Slow Response - Rich to Lean Bank 1 Sensor 1 (P014C-P014F,P015A-P015D)
DESCRIPTION HINT: Refer to DTC P2195 (See page ). DTC No. DTC Detection Condition Trouble Area P014C The "Rich to Lean response rate deterioration level*" value is less than the standard. (2 trip detection logic) Air fuel ratio sensor (for bank 1 sensor 1) Air fuel ratio sensor (for bank 1 sensor 1) ...

Toyota Tundra Owners Manual