Steering Pad Switch: Inspection

INSPECT STEERING PAD SWITCH ASSEMBLY

Disconnect the steering pad switch assembly connector.

Fig 1: Inspecting Steering Pad Switch Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Measure the resistance according to the value(s) in the table below.

Standard resistance

STANDARD RESISTANCE SPECIFICATIONS

Tester Connection	Condition	Specified Condition
6 (AIM) - 8 (EAU)	No switch is pushed	Approx. 100 kΩ
6 (AU1) - 8 (EAU)	SEEK+ switch: push	0 to 2.5 Ω
6 (AU1) - 8 (EAU)	SEEK- switch: push	Approx. 0.3 kΩ
6 (AU1) - 8 (EAU)	VOL+ switch: push	Approx. 1 kΩ
6 (AU1) - 8 (EAU)	VOL- switch: push	Approx. 3.1 kΩ
7 (AU2) - 8 (EAU)	No switch is pushed	Approx. 100 kΩ
7 (AU2) - 8 (EAU)	MODE switch: push	0 to 2.5 Ω
7 (AU2) - 8 (EAU) (*1)	VOICE switch: push	Approx. 3.1 kΩ
7 (AU2) - 8 (EAU) (*1)	ON HOOK switch: push	Approx. 0.3 kΩ
7 (AU2) - 8 (EAU) (*1)	OFF HOOK switch: push	Approx. 1 kΩ
HINT: *1: for Premium sound models

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