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Old 09-19-2011, 12:14 PM   #1 (permalink)
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2002 trx450es shift indicator# flashing

my 2002 trx450es gear indicator# flashes and won't shift until power is turned off and on. Only happens sometimes, usually 4th &5th gear at high rpm's. Anyone have any solution?
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Old 09-19-2011, 01:36 PM   #2 (permalink)
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Welcome to the forums. When you turn the key off and back on, does the gear position indicator flash? If so, count the number of flashes as this is a trouble code.
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Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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Old 09-20-2011, 05:08 AM   #3 (permalink)
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2002 trx450es gear indicator flashing

I don't think so, but will look for that when it happens again. I just bring the bike to a stop and turn off the key. Then I turn it on and shift it down to neutral and restart. Thanks!
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Old 09-20-2011, 04:54 PM   #4 (permalink)
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Quote:
Originally Posted by kaiandbuck View Post
I don't think so, but will look for that when it happens again. I just bring the bike to a stop and turn off the key. Then I turn it on and shift it down to neutral and restart. Thanks!
Yeah, when you turn the key off and back on, that resets the ECU. The way you're describing the problem, it sounds like you may have a bad angle sensor. The angle sensor is the most common problem with the ES models. If you don't have a service manual, you can go to the manuals/schematics section of the forums and download one and it will show you how to test the angle sensor, as well as the other components of the ES system.
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Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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Old 09-21-2011, 06:08 PM   #5 (permalink)
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Thanks, I will look into your suggestion and let you know what I find.
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Old 09-21-2011, 06:12 PM   #6 (permalink)
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You're welcome.
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Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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Old 12-22-2011, 08:04 PM   #7 (permalink)
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was it the angle sensor? I am having a problem like this on a 2006 TRX 350 FE rancher. When driving in 5th gear for a while the 5 starts flahing (12 times) and it will not shift. Have to turn the key off then on and can shift agin. It does not start flashing again until driving in 5th gear again. This happens every time.

Last edited by chad; 12-22-2011 at 08:07 PM.
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Old 12-22-2011, 08:48 PM   #8 (permalink)
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was it the angle sensor? I am having a problem like this on a 2006 TRX 350 FE rancher. When driving in 5th gear for a while the 5 starts flahing (12 times) and it will not shift. Have to turn the key off then on and can shift agin. It does not start flashing again until driving in 5th gear again. This happens every time.
Welcome to the forums. Code 12 is the gear position switch. But before replacing it, download the service manual and test the switch. You can download the service manual from the link below.

Service Manual Downloads - All years
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Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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Old 12-22-2011, 08:49 PM   #9 (permalink)
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Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!

You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
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