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Electric power but no fuel pump prime or start

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electrical
2.7K views 15 replies 6 participants last post by  03TLR1000  
#1 ·
I replaced my horn yesterday but it only worked intermittently. I've heard a relay is needed. But before I could anything, my bike stopped starting. (It was just running fine, I turned off, then a min later went to start again and it wouldn't.) Lights and ignition works/lights up but fuel pump does not prime and nothing happens when I try to start. All fuses are good. I put my old horn back on. Same problem persists. Newer battery w clean terminals. Charged battery anyway but still not starting. Clutch in and kill switch is on. (While ignition lights turn on, it doesn't show me which gear its in which is odd.)

Any ideas?
 
#5 ·
The stock horn doesn't use a relay. The wiring feed is through the brake light circuit using that fuse. There's no connection to the gear position switch either, so may be you have inadvertently disturbed some connectors under the tank which is causing the power loss.
 
#6 ·
Correct - stock horn doesn't have a relay and I didn't add one.

The dash has a "check" signal on. I don't have a scope or whatever is needed to tell me what that check means. I was hoping it'd tell me a check code w/o the scope but it doesn't appear to.
 
#7 ·
If the display says "CHEC", then it means it sees a problem. If you put the bike in "Dealer Mode", it should indicate a -Cxx code.
the "xx" are a number, then you have to research in Factory Manual, or on-line what that Susuki code is.

To put it Dealer Mode, you jumper a couple of pins in six-connector plug under the seat. Jumper the outer 2 RH vertical pins. They sell a switch for this, but a jumper clip would do.
 
#10 ·
Yeah something must've been disturbed unintentionally under the tank somewhere. You can get a service manual online, or a member here could send one to you. It is all PDF, no physical book that I could find, which is a bummer for me. I have one I could send if you need it.
 
#13 ·
BTW - if my horn is on the brake circuit, I don't see a fuse for brakes... maybe it's in w another circuit. I checked all the fuses and any insight fuses that I could find but I'm wondering if there's an inline fuse under the gas tank or somewhere?
 
#15 ·
Ah I figured it out... it was a fuse - doh! I had checked them all and was going through and swapping them out but must have missed that one. I tried again and everything is back to working again. Thx for your help tracking this down.