New Holland T8010 Manual page 1506

PTO Switch Interlock
Cause:
The Data Bus signaled that the PTO switch in cab and the PTO fender switch were both activated within 2
seconds. The PTO switches are hard wired to the AUX/Hitch/PTO controller.
Possible failure mode:
1. Operator activated PTO switch in cab, second person activated PTO fender switch.
2. Failed switch.
Solution:
1. Operate PTO from either cab, or remote fender switch. Erase fault code and continue operation. If not continue
with step 2.
2. Check PTO switches for proper function.
A. Left and right remote PTO switches are normally closed.
B. Cab PTO control switch normally open.
Auto PTO Switch Data Is Set To The Error State
Cause:
The Data Bus signaled that Auto PTO switch data is set to error state.
The AUX/Hitch/PTO controller received the signal from the armrest controller.
Possible failure modes:
1. Bad Auto PTO switch.
2. Software execution error in the armrest controller (small chance).
Solution:
1. Erase fault code. Reprogram Auto PTO function and continue operation. Continue with next step if needed.
2. Connect the service tool to the tractor Data Bus, do the following:
Go to the Monitor screen by click the Monitor Icon.
Click the CHANGE PARAMETER SELECTIONS Icon.
Click the AUTO PTO SWITCH and then ADD. Next click EXIT. You will now be able to monitor the AUTO PTO
SWITCH status on the screen.
3. If service tool is not available check Auto PTO switch for proper function. Remove armrest and test switch.
Section 55 - Electrical System, Controller - Chapter 3
AUX/HITCH/PTO FAULT CODE 154
AUX/HITCH/PTO FAULT CODE 155
55-3-87