Inspection [08/2016 - ]: Procedure

INSPECT STEERING PAD SWITCH ASSEMBLY

Measure the resistance according to the value (s) in the table below.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

*A	w/ Lane Departure Alert System	-	-
*a	Component without harness connected (Steering Pad Switch Assembly)	*b	Seek+
*c	Seek-	*d	Volume+
*e	Volume-	*f	MODE
*g	Voice	*h	Off Hook
*i	On Hook	*j	Up
*k	Down	*l	Left
*m	Right	*n	Enter
*o	Back	*p	Top
*q	Lane Departure Alert	*r	Distance Control

Standard Resistance

Tester Connection	Condition	Specified Condition
A-11 - A-8	No switch pushed	95 to 105 kΩ
	Seek+ switch pushed	Below 2.5 Ω
	Seek- switch pushed	313 to 345 Ω
	Volume+ switch pushed	950 to 1050 Ω
	Volume- switch pushed	2955 to 3265 Ω
A-10 - A-8	No switch pushed	95 to 105 kΩ
	MODE switch pushed	Below 2.5 Ω
	On hook switch pushed	313 to 345 Ω
	Off hook switch pushed	950 to 1050 Ω
	Voice switch pushed	2955 to 3265 Ω
A-3 - A-8	No switch pushed	95 to 105 kΩ
	Left switch pushed	Below 2.5 Ω
	Up switch pushed	313 to 345 Ω
	Down switch pushed	950 to 1050 Ω
	Right switch pushed	2955 to 3265 Ω
A-2 - A-8	No switch pushed	95 to 105 kΩ
	Enter switch pushed	Below 2.5 Ω
	Top switch pushed	313 to 345 Ω
	Back switch pushed	950 to 1050 Ω
A-4 - A-7*	No switch pushed	1 MΩ or higher
	Distance control switch pushed	Below 2.5 Ω
	Lane departure alert switch pushed	228 to 252 Ω
A-6 - B-1	Always	Below 2.5 Ω
A-7 - C-1	Always	Below 2.5 Ω
A-12 - C-3	Always	Below 2.5 Ω

HINT:

If the result is not as specified, replace the steering pad switch assembly.

Check the illumination.

Component without harness connected
(Steering Pad Switch Assembly)

Connect a positive (+) lead from the battery to terminal 5 and a negative (-) lead to terminal 9 of the steering pad switch assembly connector.
Check that the steering pad switch assembly illumination illuminates.
OK

The steering pad switch assembly illumination illuminates.

HINT:

If the result is not as specified, replace the steering pad switch assembly.