Aux/Hitch/Pto Fault Code 26 - New Holland T8010 Manual

Up/Down Fender Switch Failure
Cause:
Hitch UP/DOWN fender switch failure.
Possible failure modes:
1. Both switches are pushed together.
2. Switch was pushed before engine start up.
3. Switch was pushed while tractor was moving.
4. Switch Up was pushed when the hitch is against the upper limit setting.
5. Switch Down was pushed when the hitch is against the lower limit setting.
Solution:
Fault code should not be there any more when the fender switch is released. If the code is still there, test the fender
switch function and its wiring.
1. Make sure the hitch remote switch is not pressed. Check for mechanical interference which may cause the
switch be pressed. Shut down the tractor and start it again. Check the fault code in the hitch controller.
If the fault code is gone, the problem is fixed.
If the fault code appears again, go to the next step.
2. Test the function of the fender switch.
Disconnect the fender switch connector. Check the continuities between the cavities.
There should be no continuity between any two cavities when the switch is not pressed.
There should be continuity between cavity A and B when the down switch is pressed.
There should be continuity between cavity C and B when the up switch is pressed.
For tractor with fender extension, check the two switches on the fender too.
3. If none of above, test the wiring from the AUX/Hitch/PTO controller C053 and C057 to the fender switches.
The three wires should have good continuity from end to end, and no shortage between wires.
NOTE: Always inspect connector ends for damaged, bent or dislocated pins when troubleshooting.
NOTE: See schematic sections 51 and 52 on the schematic poster.
Section 55 - Electrical System, Controller - Chapter 3

AUX/HITCH/PTO FAULT CODE 26

55-3-23