New Holland T8010 Manual page 1347

C - Engine Oil Pressure Sensor Circuit Test
Test point
1 Remove electrical connector
J1-8 from engine oil
pressure sensor.
Check continuity from J1-8
pin 1 to connector J1 pin 17.
2 Check continuity from J1-8
pin 2 to Splice EC2
Test point
1 Ignition in Run position.
Remove electrical
connector 66 from fuel
sender.
Measure voltage at
connector 66 terminal A.
2 Measure voltage at in-line
connector 60 terminal 8.
3 Measure voltage at
instrument cluster
connector CN2 terminal
21.
4 Measure resistance from
fuel sender connector 66
terminal C to ground.
5 Remove electrical
connector 61 from
instrument cluster.
Measure resistance from
fuel sender connector 66
terminal B to connector
CN1 terminal 22.
6 Measure resistance from
in-line connector 60
terminal 13 to instrument
cluster connector CN1
terminal 22.
Section 55 - Electrical System - Chapter 1
Good Reading
If good reading go to next
test point.
If good reading and Oil
Pressure Sensor does not
work, replace Oil Pressure
Sensor.
D - Fuel Sender Circuit Test
Good Reading
8 volts
If good reading, go to test
point 4.
8 volts
If good reading, repair
open in 234B(R) circuit.
8 volts
If good reading, repair
open in 234A(R) circuit.
Less than 1 ohm
If good reading, go to next
test point.
Less than 1 ohm
If good reading, fuel
sender circuits are okay.
Replace fuel sender.
Less than 1 ohm
If good reading, repair
open in 236B(Y) circuit.
55-1-166
Possible Cause of Bad Reading
Open in circuit.
Open in circuit.
Possible Cause of Bad Reading
Open in 234(R) circuit from instrument
cluster.
Go to next test point.
Open in 234(R) circuit from instrument
cluster.
Go to next test point.
Open in circuit from connector 66
terminal C to ground.
Open in 234(Y) circuit from instrument
cluster.
Go to next test point.
Open in 236A(Y) circuit.