New Holland T8010 Manual page 1626

PTO ON/OFF Control Switch Failure
Cause:
PTO ON/OFF control switch failure.
Possible failure modes:
1. Switch failed.
2. External wiring failure (damaged wires, loose connectors, or bent pins).
3. Armrest controller internal failure (power supply or signal sensing failed).
Solution:
Monitor the switch status on the monitor screen of the service tool. Test the switch function, its wiring, and the
function of the armrest controller.
1. Open the armrest controller housing and disconnect connector J213 for PTO ON/OFF control.
2. Test the PTO ON/OFF control switch and its wiring. Pay attention for wiring damage, loose connectors, or bent
pins.
a. When the switch is in ON position, there should be continuity between pin 1 and pin 3. No continuity between
pin 1 and pin 2.
b. When the switch is in OFF position, there should be continuity between pin 1 and pin 2. No continuity
between pin 1 and pin 3.
If the switch is not functioning as specified above, replace the switch.
3. Check controller function:
a. Measure the voltage output from the controller at pin 1 of J213. It should be at 12 VDC.
b. Short wire pin 1 to pin 2 to simulate the OFF function. Short wire pin 1 to pin 3 to simulate the ON function.
Monitor the switch status on the monitor screen of the service tool.
If the controller does not function properly, replace the armrest controller.
NOTE: See schematic sections 47 and 48 on schematic poster.
Section 55 - Electrical System, Controller - Chapter 5
FAULT CODE ARM 1039
55-5-21