Just got a new to us 2015 d6k2xl with 4085 hrs on it. The rig is posting a 39-2500-3 machine control module. Power train speed range control position sensor: voltage above normal. What I'm looking for is 1 where is the sensor and 2 how. To fix sound like it is shorting out . Local dealy is 2 weeks out and only will look at it at there shop. Just needing some advice on fixing issue at hand.
Doesn't help much, a Serial Number would be better. You're going to need an electrical schematic anyway and that will also depend on S/N. Refers to the thumbwheel switch/roller in the control handle for the hydrostatic transmission. You had better hope it's an external wiring fault because AFAIK the roller switch (if that's what the problem is) is not available separately, only as part of a complete handle assembly.
Attached the troubleshooting procedure. I'll send you an electrical schematic. Keep an eye on your messages.
I am also having this code on a D4 dozer, code 2500-3. Can you assist me with an electrical schematic for my machine serial number RLT00702
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We ended up replacing the control handle in our machine, but are still experiencing the same 2500-3 error code. Do you happen to have a hydraulic schematic for my machine you could send, and troubleshooting procedures for this code? It seems the problem must be a sensor somewhere, but not sure where to start. Machine serial number RLT00702 Thank you.
Based on what exactly.? It sounds as though you fired off the Parts Cannon to me. That begs the question as to why you think you need a hydraulic schematic in addition to the electrical one you already have. Did you carry out the troubleshooting procedure UENR1731-06 attached to Post #3 above. If so what were the results.?
Thank you for your further prodding to rethink what we had done and our path forward... The troubleshooting procedure that was posted previously was not consulted properly. After reviewing in more detail, we found the issue. There was a short in one of the wires from the thumb control switch. We have repaired the wire and all is good now.
Splendid! Just splendid!
More proof, if it were needed, of the power of data-driven diagnostics.
Good to see you making them re-think their thinking Nige as there is an order of simple checks to do before firing the parts cannon. Good for all other readers of the post to get them thinking in line with data driven diagnostics. Win win for every one. Simon C