HELP - YBR 125 2015 - Fault Code 33 (Ignition Coil) & Brake Light Issue in Projects Posted April 12, 2019 1 hour ago, slice said: Hi, well I know nothing about your particular bike but from others I have worked on I suspect you have a dead short somewhere, try taking the connector off of the ignition switch and see if the brake light goes out, if it does then it's the ign switch, if not then it's the brake light wire shorting across the frame some where. You say that the ign coil and brake light use the same wire! ok then try following that wire back as far as you can and see what it attaches to and unplug that and see what happens, it's always a problem trying to find a fault when you can't see the bike so where are you in the world? someone on here might be nearby and able to lend a hand. One other thing, always go for the simple things never start from the ECU or some other complicated piece of kit. it's usually the daft things that catch you out. Hi Slice, Thanks for your speedy responce! Right i'll check the points you mentioned and let you know how it goes! & I am from Bradford, West Yorkshire, UK & Thankyou that makes sence! I'd hate to start replacing parts only to find out it was a simple faulty wire or connection. Also, you state it could be a dead short (i'm sure doing what you mentioned will help me narrow this down) and that its difficult to diagnose a problem without having the bike infront of you, but is there anywhere in particular you could think of that it would be most likely to have the dead short (ie behind the headlight or near the battery or wires that could be trapped against the frame and tank / seat etc). Thank you again for you advice. It is very much appreciated!!!