New Holland T8010 Manual page 1367

Power Seat System Diagnostic Tests
NOTE: The batteries must be fully charged and all connections clean and tight. Use a multimeter (DVOM) for these
tests. For battery testing and service, see the battery section in the service manual.
IMPORTANT: DO NOT use a self-powered test light for any of these tests. Use of a self-powered test light can
cause damage to components in this system.
WARNING: Before performing any of the electrical tests, be sure all operating controls are in neutral or
!
park lock position. This will eliminate accidental movement of the machine or start-up of power driven
equipment.
A - Seat System Power and Ground Supply Test
Test Point
1 Ignition in Run position.
Measure voltage at seat
connector 133 terminal 1.
2 Measure voltage at seat
connector 133 terminal 2.
3 Measure voltage at seat
connector 133 terminal 5.
4 Measure voltage at seat
connector 133 terminal 7.
5 Measure voltage at splice
C15.
6 Measure voltage at splice
C15.
7 Measure voltage at splice
C15.
8 Measure voltage at fuse
#9.
9 Measure voltage at fuse
#29.
Section 55 - Electrical System - Chapter 1
Good Reading
12 volts
If good reading, go to next
test point.
12 volts
If good reading, go to next
test point.
12 volts
If good reading, go to next
test point.
12 volts
If good reading, go to test
point 11.
12 volts
If good reading, repair
open in 73B(R) circuit.
12 volts
If good reading, repair
open in 73C circuit.
12 volts
If good reading, repair
open in 73D(R) circuit.
12 volts
If good reading, repair
open in 73A(R) circuit.
12 volts
If good reading, repair
open in 259A(R) circuit.
55-1-186
Possible Cause of Bad Reading
Open in circuit from switched B+.
Go to test point 5.
Open in circuit from switched B+.
Go to test point 6.
Open in circuit from switched B+.
Go to test point 7.
Open in circuit from switched B+.
Go to test point 9.
Open in circuit from switched B+.
Go to test point 8.
Open in circuit from switched B+.
Go to test point 8.
Open in circuit from switched B+.
Go to test point 8.
Fuse #9, or
Open circuit 102F(R) circuit from
switched B+.
Open in circuit from switched B+.
Go to next test point.