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General Category >> Rubber Side Down! >> Front brake switch wiring info
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Message started by Sevesteen on 04/30/13 at 17:46:01

Title: Front brake switch wiring info
Post by Sevesteen on 04/30/13 at 17:46:01

Wife and I took a ride today, I followed while she rode her 87 Savage. I discovered two things--she doesn't use her rear brake enough, and her front brake switch is bad. The bulb works when she uses the rear brake. I've tried to trace out the wiring using logic and a multimeter, but either I'm short on logic, or there's something wrong other than the switch. I'm assuming that with the bike on, there should be some voltage at some terminal on the disassembled switch--not on hers. Even shorting across the solder joints on the back of teh switch doesn't light up the brake light. Can anyone point out what volt or ohm readings I should be getting at the relevant terminals, or anything else I should look at?

Title: Re: Front brake switch wiring info
Post by thumperclone on 04/30/13 at 22:41:02

on the 87 power to the front brake switch is O/Bl
same feed as the engine kill switch
comes from the side stand relay

Title: Re: Front brake switch wiring info
Post by Dave on 05/01/13 at 04:48:11

As Thumperclone indicated - the orange wire with the black tracer is the power supply, and it also provides power to the kill switch and starter. If the brake light switch is not getting power - there must be some wire issue right up a the harness near the switch. Try taking a wire to the battery positive terminial and jump to the other wire at the switch.....and see if the brake light works.

THe Technical Section has a wiring diagram for your bike.......here:
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1294779818

Title: Re: Front brake switch wiring info
Post by Sevesteen on 05/01/13 at 17:20:57

3529342C312433222D2E2F24410 wrote:

on the 87 power to the front brake switch is O/Bl
same feed as the engine kill switch
comes from the side stand relay

Thank you. This was the key clue--without it, I never would have guessed that the rear brake switch works whenever the bike is on, but the front only works when the bike is on AND THE STAND IS UP. Far as I can tell, I had the real problem fixed in 15 minutes, the other 2 hours was chasing my tail.
(note--I'm not shouting at the helpful people here, I'm shouting at whoever designed the wiring)