Aux/Hitch/Pto Fault Code 4 - New Holland T8010 Manual

Hitch Raise Solenoid Failed Open Or Shorted To Ground
Cause:
The hitch raise solenoid or its wiring has failed open or is shorted to ground.
Possible failure modes:
1. Wiring from the hitch controller to the hitch raise solenoid has open circuit or short to ground.
2. Hitch raise solenoid failure.
Solution:
Check the hitch raise solenoid resistance and the continuity from the hitch controller to the hitch raise solenoid.
1. Test the hitch raise solenoid resistance at the hitch controller connectors C058 and C053.
Remove the controller cover from the rear of the tractor.
Disconnect connectors C058 and C053 from the hitch controller.
Inspect C058, pin 4 and C053, pin 5. Clean the connections.
Clean the mating pin and connector.
Test continuity between pin 4 and pin 5. The resistance should be:
Approximately 5.1 ohms at - 40 C (-40 F).
Approximately 6.9 ohms at 25 C (77 F).
Approximately 9.5 ohm at 100 C (212 F).
If the hitch raise solenoid resistance is not in the range, go to step 2.
If it is as specified, start the engine and test the hitch again.
If fault code is recorded again, check the function of the hitch controller.
If not, problem fixed.
2. Test the hitch raise solenoid resistance at the hitch raise solenoid connector (C151).
Test continuity between pin 1 and pin 2. The resistance should be:
Approximately 5.1 ohms at - 40 C (-40 F).
Approximately 6.9 ohms at 25 C (77 F).
Approximately 9.5 ohm at 100 C (212 F).
If the hitch raise solenoid resistance is not in the range, replace the solenoid.
If it is as specified, wiring problem. Go to step 3.
3. Check the wiring harness from connector C058 and C053 to C151 for open circuit or short to ground.
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 4

55-3-8