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Baffled by Bloomin Brake Lights! (1100 Cali 1994... again)

GuzziHero

GuzziHero

Cruisin' Guzzisti
GT Contributor
Joined
May 2, 2009
Messages
485
Location
Stoke-on-Bloody-Trent
Boy, does this bike keep me amused!

So I decided to move my rear light wiring since it was running right over the top of the fender. BIG mistake.

I connected everything up and... no brake lights. I have resistance checked the wiring right from the front brake switch to the light wiring itself - clear. If I plug the brake light circuit into the running light power in, it works. It is even getting voltage to the light unit, but neither brake will light it up.

Now, two things baffle me. One - I do not know where the brake light switch is for the footbrake. I cannot see any wiring into or out of the master cylinder or to the pedal itself. Can someone please tell me where the switch is, so I can test it?

Second - at some stage, a previous owner fitted a single bulb tail light, so he has spliced the two wires together (unless they were like that normally, and he just made a hash job of it). But since both bulbs light when I connect it to the running light feed, that shouldn't be an issue.

Short of taking it to a Guzzi engineer, can anyone think of any tests or anything which I might have missed?

Cheers!
 
Re: Baffled by Bloomin Brake Lights! (1100 Cali 1994... agai

To find the brake light switch for the integrated system, remove your left side cover. You will see a manifold for the brake system. Screwed into the bottom is a pressure activated switch. As for the tail light, correct it back to a double filament bulb (1157) you will be glad you did. Sockets for that bulb are readily available a automotive parts stores. Whoever the yahoo was that mess up the tail light should be shot on sight.

As for finding the new problem, wire only stretches so far. You may have a broken wire somewhere. To troubleshoot see this thread. https://www.guzzitech.com/forum/160/3001.html
 
Re: Baffled by Bloomin Brake Lights! (1100 Cali 1994... agai

Cheers, I'll get onto that asap. Would a failed rear light switch cause both to fail?
 
Re: Baffled by Bloomin Brake Lights! (1100 Cali 1994... agai

GuzziHero said:
Cheers, I'll get onto that asap. Would a failed rear light switch cause both to fail?
Click to expand...

No, they can function independently. Sounds like both may be out, or it is an issue with your wiring.
 
Re: Baffled by Bloomin Brake Lights! (1100 Cali 1994... agai

Sorted it. A good old bad wire. Move it one way, power. Move it the other, no power.

Then the front brake light switch failed... This bike is trolling me!

Cheers for the diagnostic tips, they helped a lot!
 
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