STEERING PAD SWITCH INSPECTION

PROCEDURE

1. INSPECT STEERING PAD SWITCH ASSEMBLY

   1. Type A:

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

         

         *a	Volume+ Switch	*b	Volume- Switch
         *c	Seek+ Switch	*d	Seek- Switch
         *e	On Hook Switch	*f	Off Hook Switch
         *g	MODE Switch	*h	Voice Switch (with Voice Switch)
         *i	Left Switch	*j	Right Switch
         *k	Up Switch	*l	Down Switch
         *m	ENTER Switch	*n	Back Switch
         *o	Trip Switch	*p	ACC Switch (w/ ACC Switch)
         *q	ASL Switch (with ASL Switch)	*r	Component without harness connected (Steering Pad Switch Assembly)

         Standard Resistance

         Tester Connection	Switch Condition	Specified Condition
         A11 (AU1) - A8 (EAU)	No switch is pushed	95 to 105 kΩ
         	Volume+ is pushed	950 to 1050 Ω
         	Volume- is pushed	2955 to 3265 Ω
         	Seek+ switch is pushed	Below 2.5 Ω
         	Seek- switch is pushed	313 to 345 Ω
         A10 (AU2) - A8 (EAU)	No switch is pushed	95 to 105 kΩ
         	MODE switch is pushed	Below 2.5 Ω
         	On Hook switch is pushed	313 to 345 Ω
         	Off Hook switch is pushed	950 to 1050 Ω
         	Voice switch is pushed	2955 to 3265 Ω
         A2 (+DP) - A8 (EAU)	No switch is pushed	95 to 105 kΩ
         	ENTER Switch is pushed	Below 2.5 Ω
         	Trip switch is pushed	313 to 345 Ω
         	Back Switch is pushed	950 to 1050 Ω
         A3 (+DP2) - A8 (EAU)	No switch is pushed	95 to 105 kΩ
         	Left switch is pushed	Below 2.5 Ω
         	Up switch is pushed	313 to 345 Ω
         	Down switch is pushed	950 to 1050 Ω
         	Right switch is pushed	2955 to 3265 Ω
         A4 (DIST) - A7 (ECC)	ACC switch is pushed	Below 2.5 Ω
         A9 (ASL) - A7 (ECC)	ASL switch is pushed	Below 2.5 Ω
         A5 (HO) - B (HO)	Always	Below 2.5 Ω
         A6 (SUP) - C2 (SUP)	Always	Below 2.5 Ω
         A12 (SDN) - C3 (SDN)	Always	Below 2.5 Ω
         A7 (ECC) - C7 (ECC)	Always	Below 2.5 Ω

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

      2. Connect the battery positive (+) lead to terminal A1 (IL+2) and the negative (-) lead to terminal A8 (EAU) of the steering pad switch assembly connector.

      3. Check that the switch illumination comes on.

         OK

         Steering pad switch illumination comes on.

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

   2. Type B:

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

         

         *a	Volume+ Switch	*b	Volume- Switch
         *c	Seek+ Switch	*d	Seek- Switch
         *e	MODE Switch	*f	Off Hook Switch
         *g	On Hook Switch	*h	DISP Switch
         *i	Component without harness connected (Steering Pad Switch Assembly)	-	-

         Standard Resistance

         Tester Connection	Switch Condition	Specified Condition
         A11 (AU1) - A8 (EAU)	No switch is pushed	95 to 105 kΩ
         	Seek+ switch is pushed	Below 2.5 Ω
         	Seek- switch is pushed	313 to 345 Ω
         	Volume+ is pushed	950 to 1050 Ω
         	Volume- is pushed	2955 to 3265 Ω
         A10 (AU2) - A8 (EAU)	No switch is pushed	95 to 105 kΩ
         	MODE switch is pushed	Below 2.5 Ω
         	On Hook switch is pushed	313 to 345 Ω
         	Off Hook switch is pushed	950 to 1050 Ω
         A2 (+DP) - A8 (EAU)	DISP switch is pushed	Below 2.5 Ω
         A5 (HO) - B (HO)	Always	Below 2.5 Ω

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

      2. Connect the battery positive (+) lead to terminal A1 (IL+2) and the negative (-) lead to terminal A8 (EAU) of the steering pad switch assembly connector.

      3. Check that the switch illumination comes on.

         OK

         Steering pad switch illumination comes on.

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