pro10is
New member
Mike, Whenever multiple unrelated codes are generated you have to strongly suspect a problem with the electrical system because if the voltage is low as read by the ECU diagnostics these codes will occur without anything else wrong. The first suspect is always the battery but you say you've checked that with the old oem battery. Still you could have two bad batteries, it happens. If this were my Spyder I would attach a good quality digital voltmeter (multimeter) to the battery terminals and watch it carefully when you try to start up the bike (if you don't have a good multimeter let me know, you could use mine). If the voltage drops to anything below 11.7 volts at any time I would suspect the battery is causing the issue. Next I would attach the voltmeter to the front fuse box to one of the fuses that has power all the time (you could also use the 12 volt power adapter if you have one). The point is to monitor the voltage thru the wiring harness and not just at the battery terminals where it will be at it's strongest. I would again carefully monitor the voltage when trying to start the bike. Again if it falls below 11.7 volts, even momentarily, suspect a problem.
Next I would carefully inspect all the ground terminals especially the one located on the chassis near the steering column on the left side (in the vicinity of the front fuse box underside). This ground terminal is key and sometimes the bolt/nut can be loose (it was on mine). Make sure it's really tight and that all the ground leads coming off of it are secure. Next check the ground terminal near the ignition coil (left side).
If you find nothing wrong with all of this pm me and we can go over other possible options.
Next I would carefully inspect all the ground terminals especially the one located on the chassis near the steering column on the left side (in the vicinity of the front fuse box underside). This ground terminal is key and sometimes the bolt/nut can be loose (it was on mine). Make sure it's really tight and that all the ground leads coming off of it are secure. Next check the ground terminal near the ignition coil (left side).
If you find nothing wrong with all of this pm me and we can go over other possible options.