Low beam works. Pass light works. High beam doesn't? - Suzuki GSX-R Motorcycle Forums Gixxer.com
 
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post #1 of 7 (permalink) Old 07-28-2018, 11:38 AM Thread Starter
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Low beam works. Pass light works. High beam doesn't?

Noticed accidentally that my high beam doesn't work. If I pull the pass light, it's fine. Low beam is fine. High beam switch though doesn't work however unless I get it "stuck" midway. Mechanic took the switch apart as he only had a few minutes and said the contacts and such look fine. Doesn't have time today to dig underneath today but I was thinking there could be an easy common fix? Is there a relay on only the high beam? 07 gsxr 750.

Thanks for any help guys.
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post #2 of 7 (permalink) Old 07-28-2018, 01:05 PM
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Re: Low beam works. Pass light works. High beam doesn't?

I haven't bothered to check in detail but I'm fairly sure that there's no relay and that there's an issue inside the switch. If the contacts are OK, the only thing left is the switch's wiring, either the orange or yellow leads. Should be easy to track down with a multimeter. I'd expect the low beam to run straight from the fuse and have nothing to do with the switch.
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post #3 of 7 (permalink) Old 07-29-2018, 07:31 AM Thread Starter
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Just also noticed, my left turn signals don't work at all. Dash, front or rear. Right ones are fine. Turn signal or emergencies. Horn works but sounds weak. Nothing else seems wrong. Starts on the button.
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post #4 of 7 (permalink) Old 07-29-2018, 08:05 AM Thread Starter
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Weird. I posted that on the side of the road hiding from the rain. Noticed because I wanted to leave my four ways on while under dark bridge in rain. Made that post, rain cleared up, I decided to go. Started up, merged and gave the turn signals a test. They are now working. High beam switch still no different.
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post #5 of 7 (permalink) Old 07-29-2018, 08:15 AM
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Re: Low beam works. Pass light works. High beam doesn't?

If the flash to pass works, it's not the wiring. All your troubles are in that left switch pod.
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post #6 of 7 (permalink) Old 07-29-2018, 12:31 PM Thread Starter
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It was the wiring. Got it temp fixed. Wire came out of the bottom of the loom underneath airbox.

I see ur point but this means that they are on different wires
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post #7 of 7 (permalink) Old 07-29-2018, 01:54 PM
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Re: Low beam works. Pass light works. High beam doesn't?

"Wire came out of the bottom of the loom underneath airbox...this means that they are on different wires"

I don't believe it. High beam power comes from the fuse via a Y/W lead that changes to O at the switch connector. It leaves the switch via a Y lead for both the high beam and the flash-to-pass switches. The Y lead runs to the big connector where it changes to B/Y that runs to the cluster and the high beam bulb. There are no separate high beam and flash-to-pass leads except inside the switch where they branch to the individual switches. Your wiring has been modified if you have something else and the only reason I can think of is so that the high beam and flash-to-pass turn on different bulbs, which would require that the switch also be modified.

The connector for your switch should be yellow and have ten positions, one of which is empty (two are empty on the wiring harness side). Of them, three are associated with headlights. The O and Y leads are for the high beam and flash-to-pass as described above. There's also an unused W lead that is used for the low beam in other applications.
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