Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Inspection

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Steering / Steering Column / Steering Pad Switch / Inspection

INSPECTION

PROCEDURE

1. INSPECT STEERING PAD SWITCH ASSEMBLY

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

*a	Component without harness connected (Steering Pad Switch Assembly)	*b	Up
*c	Down	*d	Right
*e	Left	*f	OK
*g	Back	*h	On/off Hook
*i	Voice	*j	Volume+
*k	Volume-	*l	Seek+
*m	Seek-	*n	MODE
*o	+RES	*p	-SET
*q	Cruise Control Main	*r	CANCEL
*s	Distance Control	*t	Lane Departure Alert

Standard Resistance:

Tester Connection	Condition	Specified Condition
z1-3 (AU1) - z1-10 (EAU)	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
z1-9 (AU2) - z1-10 (EAU)	No switch pushed	95 to 105 kΩ
	MODE switch pushed	Below 2.5 Ω
	On/off hook switch pushed	950 to 1050 Ω
	Voice switch pushed	2955 to 3265 Ω
z1-5 (+DP2) - z1-10 (EAU)	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
z1-4 (+DP) - z1-10 (EAU)	No switch pushed	95 to 105 kΩ
	OK switch pushed	Below 2.5 Ω
	Back switch pushed	313 to 345 Ω
z1-8 (DIST) - z1-12 (ECC)	No switch pushed	1 MΩ or higher
	Distance control switch pushed	Below 2.5 Ω
	Lane departure alert switch pushed	228 to 252 Ω
z1-2 (CCS) - z1-12 (ECC)	No switch pushed	1 MΩ or higher
	Cruise control main switch pushed	Below 2.5 Ω
	CANCEL switch pushed	228 to 252 Ω
	+RES switch pushed	599 to 661 Ω
	-SET switch pushed	1463 to 1617 Ω

HINT:

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

(b) Check the illumination.

Component without harness connected

(Steering Pad Switch Assembly)

(1) Connect a positive (+) lead from the auxiliary battery to terminal 1 (ILL+2) and a negative (-) lead to terminal 6 (ILL-2) of the steering pad switch assembly connector.

(2) 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.

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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Inspection

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