Cant seem to shift these errors. When I earth the middle wire on diagnostic lead, the error light goes. However when I remove the probe it comes back on. Using MM as earth on continuity with pointy probes. Errors are not on my race ECU when I swap them over. Only on my base oem ecu. Which I know was fine coz @chrisw just flashed it and if it was dodgy he'd have noticed. Any clues anyone?
It sounds like the -ve and +ve wires of a diagnostic connector have been reversed at some time frying the sensor earth within the ECU. The fix is to apply a permanent earth to the middle connector of the diagnostic socket.
Thank you derek. That did happen briefly. Thought I'd got away with it as I barely touched the +ve before realising. I shall give that a go.
Well the errors disappear when I earth the middle wire of the two. So I'll have to cut in and solder on an earth. Im guessing it worked fine when I had the OBD etc plugged in, is because thats earthed. As soon as I removed it, error.
Rather than solder a new earth, I decided to just leave the diagnostic lead in place as it has an earth. Bikes fine now. Sorry @Stu848 I was too busy trying to figure stuff out and get bike ready to hunt in my nuts n bolts tins for the cotter pins. I have several nuts n bolts tins and I dont know which one i put them in. Shouldve been the 1198 tin but theyll doubtless be in the 916 one or the general. But I do have them and I will start the hunt tonight and post em on. Sincere apologies but the 1198 was keeping me busy.
Found Stu's cotter pins Confirmed. Earth blown. Fix = leave diagnostic lead on and connect to battery (correctly) Bikes fine now. No problems. Ticks over nicely if a tad quieter than I am used to.
Hi all. I have this currently on my 1098, I had to replace the starter so everything was disconnected on lhs electrical wise. I have plugged in a blue scan II diagnostic tool but error still showing. Now I have a 4 pin plug, what wires if starting number 1 from left, what wire should I earth?
I think you are confusing the Diagnostic socket with the Data Acquisition socket which is a 4-pin. The diagnostic socket is a 3 pin with a orange/white wire and a black/violet wire in the middle position.
Hi Derek I am indeed confusing it Can you advise the location of the diagnostic socket please. Is it under the battery lhs. And any idea how i may have managed to cause this fault as I don't believe I touched it or uncovered that socket
Strangely the workshop manual doesn't show it But it's down in the vicinity of the ECU, arrowed in this pic.
