Blown lights fuses

5th_bike · 10-07-2007, 01:30 AM

When I picked up my 'new' 2005 bike last week, the signal lights and break light didn't work and two fuses were blown, the numbers 4 (15A) and 5 (10A) on the wiring diagram.
I put the two spares in and everything worked, but after driving um, like 100 feet, the lights didn't work anymore and the two fuses were blown again.
It was a short via an orange/blue wire underneath the tank, a loop from and to the same connector. The loop touched the head of the engine and a bit of the plastic insulation was melted away. Well some good old Scotch-33 electric tape took care of that ! And the wire is now safely away from the heat.
While trying to find the short (initially I suspected it in the headlight area) it turned out that the rear brake pedal activates the break light via the 10A fuse, and the front break handle activates the break light via the 15A fuse. Apparently when you use both brakes, you can blow two fuses via one little short...
So now I'm wondering if that is normal, because according to the wiring diagram both break light switches are fed only via the 15A fuse. Maybe they introduced it some time between 1999 (wiring diagram) and 2005. :??:

10-07-2007, 01:30 AM	#1
5th_bike Senior Member Join Date: Oct 2007 Location: HoCo, Maryland Posts: 1,349	Blown lights fuses When I picked up my 'new' 2005 bike last week, the signal lights and break light didn't work and two fuses were blown, the numbers 4 (15A) and 5 (10A) on the wiring diagram. I put the two spares in and everything worked, but after driving um, like 100 feet, the lights didn't work anymore and the two fuses were blown again. It was a short via an orange/blue wire underneath the tank, a loop from and to the same connector. The loop touched the head of the engine and a bit of the plastic insulation was melted away. Well some good old Scotch-33 electric tape took care of that ! And the wire is now safely away from the heat. While trying to find the short (initially I suspected it in the headlight area) it turned out that the rear brake pedal activates the break light via the 10A fuse, and the front break handle activates the break light via the 15A fuse. Apparently when you use both brakes, you can blow two fuses via one little short... So now I'm wondering if that is normal, because according to the wiring diagram both break light switches are fed only via the 15A fuse. Maybe they introduced it some time between 1999 (wiring diagram) and 2005. :??: __________________ 2005 "Saturn Black", stock + tach Login or Register to Remove Ads
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