New Holland T8010 Manual page 1597

front suspension position is above the expected absolute limit
Cause:
The transmission controller monitors the front axle potentiometer circuit. If the transmission controller detected the
voltage is above 4.74 Volts, this fault code will be recorded.
Possible failure mode:
1. The front suspension position is above the absolute limit.
2. The front axle position sensor failed.
3. The front axle position sensor wiring shorted to power.
Solution:
1. Check if the front suspension position has been above the absolute limit.
The front axle position should always be kept within the expected range to make sure the suspension works.
Make sure the tractor is properly ballasted and the implement is not too heavy for the tractor.
2. Check the installation of the front axle position sensor.
Make sure the front axle position sensor is properly installed. There is no mechanical damage or blockage
preventing its linkage work properly.
If the sensor installation is proper and the front axle position has never really been above the range, go to next
steps to check for electrical problems.
3. Check the front axle position sensor.
The front axle position sensor voltage can be monitored on the Instrument controller.
Enter program mode on ICU. Go to Fsus under Trans.
The front axle position sensor voltage will be displayed in both CAL and Manual mode.
The voltage should change smoothly from less than 1 volts to close to 5 volts when the front axle moves from
the lowest to the highest.
If the voltage changes as expected, the position sensing is working fine. It is more likely the front axle was
above the limit for mechanical reasons.
Otherwise, go to next step.
4. Check the front axle position sensor wiring.
Measure at the connector C193 on the harness side.
There should be good continuity between pin 1 and the vehicle ground.
There should be good continuity between pin 3 of connector C193 and pin 2 of connector C353.
Turn the tractor key On, there should be battery voltage (around 12 volts) at pin 2 and no volts at pin 3 and
pin1.
If the measurement is as expected, replace the front axle position sensor.
Otherwise, check for wire shortage and damages.
NOTE: Pay attention to wiring damage, loose connectors, and bent pins.
NOTE: See the Data Bus schematic section 43 on the schematic poster.
Section 55 - Electrical System, Controller - Chapter 4
FAULT CODE TRANS 140
55-4-70