The switch is at the master cylinder end of the brake lever. It activates by releasing a small switch when the brake lever is pulled.
Trace the wires back down from the switch and remove them from the bullet connectors where they meet the wiring loom (on the right hand side of the bike just behind the steering head.) Inspect and clean the connectors and then carefully re-insert them. Hopefully it will just be a "Ducati Connection" and it will operate.
Believe it or not exactly the same thing happen to me last night. I had a problem with the rear light conduit under the exhaust and had to remove the tail light wiring. After everything was reconnected the second filiment in the bulb wouldn't light up. I thought I had fu@ked up the wiring and took in to automotive electician to test. Tested OK. Could then only be the front brake switch or any thing else on the wiring loom. Fortunately in was just the wire connection
Last edited by sbwells : 08-Jun-2006 at 09:32. 
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