Hi guys, thanks for the heads up I contacted the two usual UK suppliers which is where the £120 figure came from :eek:
My multi meter test showed the code for the rear wheel sensor, so I did the usual stuff, cleaned the pick up wheel ring and gently cleaned the sensor and re- set the gap. I checked the sensor wire up to the under frame connector got fed up with it and went for a ride instead. When I got home I put the bike to bed and whilst tucking it in and kissing it good night noticed I had not secured the sensor wire into its swing arm clip firmly enough. The result was that it fell out and rubbed against the rear tyre which cut it through. Dooh!
So I never did find out if it was the sensor that went bad or the sensor wire that went AWOL, best solution is replace the whole sensor and wire up to the frame connector.
David (hi Dave) mentioned having a whole rear sensor, wire and calliper as a complete item and I can understand why he would not want to disconnect the sensor. I have just (this time) managed to get the bike MOTd and the tester commented on how good the brakes worked so do not want to disturb the calliper and bleed the system just yet. But let me know how much you would want for all of the above Dave.
Many Thanks
Mac.