New Holland T8010 Manual page 1485

Current Sensed When The Aux #2 Driver Is Off, Retract /Lower Coil Shorted
to 12 volts
Cause:
When the lever for this remote section is in Neutral, the controller should provide no voltage to the solenoid. If the
controller senses voltage on the circuit, this fault code is recorded.
Possible failure modes:
1. Damaged wiring resulting short to power.
2. Controller internal failure.
Solution:
Check the wiring from the remote hydraulic controller to the remote valve.
Check the function of the remote hydraulic controller.
1. Check the wiring harness from the AUX/Hitch/PTO controller connectors C053 pin 11 and C058 pin 3 to the
remote valve connector C341 pins 1 and 2.
There should be no shortage to12 volt power at any pin location.
NOTE: Always inspect connector ends for damage, bent or dislocated pins when troubleshooting.
2. In any of the following two conditions, replace the controller.
a. No shortage to 12 V is found in the circuit and there is no 12 V at any of the pins or cavities,
b. The 12 V is traced to the controller connectors C053 pin 11 or C058 pin 3 when the lever is in Neutral.
NOTE: See schematic section 54 on the schematic poster.
Section 55 - Electrical System, Controller - Chapter 3
AUX/HITCH/PTO FAULT CODE 127
55-3-66