TN70A Code 16 need help

   / TN70A Code 16 need help #1  

thejrancher

New member
Joined
Apr 21, 2009
Messages
1
I have a 2005 TN70A 4wd, power shuttle with 16 speed transmission. Tractor starts,amber light stays on wont go out, tractor wont move, code 16 is flashing. If I turn the tractor off and restart amber light goes out and tractor moves and operates fine, code 16 still flashes. I have replaced the transmission pressure switch (upper switch inside left rear wheel) and I have replaced both range lever switches. Any ideas?
 
   / TN70A Code 16 need help #2  
I beleive the clutch needs to recalabrated with a scanner...its just off a little you can pick up a scanner for a about $300.00 I beleive.good luck someone will be by later with some more help
 
   / TN70A Code 16 need help #3  
I'm no tusre if this is help, but I have had issues with my TN55 (shuttle clutch) intermittently doing something similar. It has been doing it for a long time now, and I have worked out a method to combat it.

On start up, ~30-40% of the time I get a warning light (flashing amber gear light as I recall) when I put the direction of travel lever in gear (sorry, it may be after I start it and before I move the lever; really all it does is control the direction of travel that the clutch locks up in). This eventually transitions to a flashing red light (the 'read your manual and do what it says' light). If I waited for ~90 seconds or so, then re-engaged everything it would still work, but with the flashing manual lamp lit.

I finally figured out a few months ago that if I give it some fuel and get the alternator lamp off (and a bit more) that I don't have this problem anymore. I think mine was simply a low flow error due to cold start up, though the codes indicated another issue (trans or range gear selector issues -- even though the switches and wiring all looked good and ohmed out).

Good luck on yours!
 

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