I know this issue has been discussed many times over but despite reading countless threads I’m still having issues.
I have a ’99 TRX450ES, I’ve just recently started experiencing shifting problems.
If I’m riding along the ESP goes into error mode displaying —.
It usually happens just while cruising in gear, not so much while changing gear or under any type of heavy load the ESP will just randomly come up with the —.
I’ve taken the gears apart in the shift motor, cleaned them and re-lubricated them.
I also took the angle sensor out and tested with my multi meter. It seemed to get really high readings when moved between the ‘N’ and 5th position so I thought this was the culprit. I just put the new one in today but still experiencing the same problem.
It sometimes becomes unresponsive all together rather than displaying — i’ll be in gear and try to change but the buttons do not respond at all, this mainly happens while I’m in 5th. It continues to display ‘5’ but I can not get it to change. By pressing the buttons, no noises are heard from the shift motor either like its attempting to change.
I’ve also noticed that while I have the ignition on sometimes when I cycle through the gears between ‘5’ and ‘N’ all I get is the — display. You can hear the shift motor change through the gears though.
Other than that whilst its running it works fine, can go through the gears normally.
When ever a fault occurs I just cycle the ignition switch and the ESP goes back to normal.
It seems like an electrical issue to me, maybe with the gear position sensor, I’ll run through the trouble shooting with that to confirm.
I’ve also put a new battery in it because the old one was stuffed.
Any ideas or something I’m missing?
