Need help with tail light on my 07 Breva v1100 not working...

[guntercl]

07 Moto Guzzi Breva 1100 tail light not working when bike is on. Brake lights are responsive at hand brake and foot brake when applied.. Does anyone have any ideas as to what i can do to fix my problem.. Thanks in advance..

[Kiwi Dave]

Obviously the LED array is working, so you can rule that out.  The tail light uses the same LEDs fed via a resistor (built into the tail light).  A test lamp will confirm whether power is getting there, which I suspect it will not be.  It's then just a matter of tracing the wiring back to where there is power.

Does the park light in the headlight work?  The fault might be in the ignition switch.

[Wayne Orwig]

Have you added a brake light without the required diode?
If so, the taillights won't work right.

[Neil]

Hello,
             This must be the start of an epidemic. My Breva did the same thing last night. Check fuse B (15 Amp) in the fuse block under the seat to the rear of the battery. Brake light would work but not the tail light. Buy fuses this morning, replace miscreant 15 amp fuse, all is good.   Neil.