john deere 5220 instrument problems

[Anonymous-0]

my instrumentation is inoperable. Feul gauge, tach, temp indicator. checked fuses and voltage to the fuses. I cannot find a schematic or wiring diagram. Need help, don't want to run tractor until repair.

 

[ryan3020]

Tech manual has wiring diagrams but is pricey to buy. Pull the dash apart and check connections with wiring harness. Check for looseness and corrosion. Then check wires, small critters find that a nice area to live.

 

[kseaton65]

you may have a bad ground for those sensor circuits, if they all went out togeather, then there is probably a common connection to all of them ie ground, you will most likely need a wiring diagram for this, if you end up with a wiring diagram and all tests out well then the problem may be internal to the instrument cluster itself, if you get this far and believe that the problem is internal, post back and a can give some advise on inspecting and repairing the inside of the instrument cluster