Toyota CH-R Service Manual: Inspection

Toyota CH-R Service Manual / 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	w/ Lane Departure Alert System	*B	w/ Voice Switch
*C	w/ Microphone	-	-
*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	Distance Control
*q	TRIP	*r	Lane Departure Alert

Standard Resistance:

Tester Connection	Condition	Specified Condition
z1-11 (AU1) - z1-8 (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
z1-10 (AU2) - z1-8 (EAU)	No switch pushed	95 to 105 kΩ
	MODE switch pushed	Below 2.5 Ω
	On hook switch pushed*1	313 to 345 Ω
	Off hook switch pushed*1	950 to 1050 Ω
	Voice switch pushed*2	2955 to 3265 Ω
z1-3 (+DP2) - z1-8 (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
z1-2 (+DP) - z1-8 (EAU)	No switch pushed	95 to 105 kΩ
	Enter switch pushed	Below 2.5 Ω
	TRIP switch pushed	313 to 345 Ω
	Back switch pushed	950 to 1050 Ω
z1-4 (DIST) - z1-7 (ECC)*3	No switch pushed	1 MΩ or higher
	Distance control switch pushed	Below 2.5 Ω
	Lane departure alert switch pushed	228 to 252 Ω
z1-1 (HO) - A-1(HO)	Always	Below 2.5 Ω

*1: w/ Microphone
*2: w/ Voice Switch
*3: w/ Lane Departure Alert System

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

(b) Check that the illumination illuminates.

(1) Apply battery voltage between the terminals of the switch, and check the illumination condition of the steering pad switch assembly.

Standard:

Measurement Condition

Specified Condition

Battery positive (+) → 5 (IL+2)

Battery negative (-) → 6 (IL-2)

Illuminates

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

*a	Component without harness connected (Steering Pad Switch Assembly)

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Installation

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Toyota CH-R Service Manual: Inspection

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