Mark Smith

Pin 2 of the VSS is fine and goes to Pin 28 of the Blue plug behind the clocks. I have a friend with a portable Fluke scope that is coming over at the weekend to connect it to pin 28 while I drive it round the block. He believes we should just see a square wave that increases in frequency as the speed increases. Is he right?

Sorry to bring an old post back to life but I have the same fault and can't seem to fix it. Mine is slightly different in the sometimes the speedo will work and sometimes it flicks up and down for all it is worth, from 0mph to 120mph and back again like it is on something. I have checked the G2 earth group and that was clean but I took it apart, sanded it and rebuilt to be sure. Just to check I got the right one it is below the coolant bottle on the face of the nearside turret and it has 3 brown wires and a 10mm bolt. I have checked the 2 plugs at the back of the clocks and they are fine with no corrosion at all. WD40 and reseated. Belled the plug from the VSS sensor and the earth is good, the live goes to F34 (I think it was F34) so I know it has a good power supply. I can't seem to get a connection from pin 2 (signal) to the clocks but I will check again tomorrow. Does anyone know if it is the blue or the green plug the VSS signals goes to the dash on and what pin number? Thanks

I have a broken wire/bad connection on my brake pad wear light. I have traced it to the last pad sensor (OSR) and the fact that there is no earth on the last wire. The wiring goes from the rear wheel, up onto the back axle and then goes behind the exhaust heat shield. Where does the wiring come out and where should it actually be earthed? Is there a main distributed earth that the wire runs back to and is there a common place that the wiring fails? Many thanks.