Good morning all I’m looking at a JD 650J dozer S/N TO650J178103 that won’t move. There are three codes on dash; 3351.31 which is trans filter restriction, I changed filter but code still comes up so probably a sensor. The next code is 2661.4 and 604.1 which both deal with FNR switch open or short circuit. The TCU doesn’t have a display only has power and status lights. Power light is green but status light is not lit. So my question is how can I get codes from TCU other than electronic service tool? Sorry for the long post.
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