New Holland T8010 Manual page 1368

A - Seat System Power and Ground Supply Test
Test Point
10 Measure resistance from
seat connector 133
terminal 3 to ground.
11 Measure resistance from
seat connector 133
terminal 4 to ground.
12 Measure resistance from
seat connector 133
terminal 8 to ground.
Test point
1 Ignition in Run position.
Press height adjustment
switch.
2 Separate electrical
connector 133F and 133M.
Engage seat height adjust
switch and check for
continuity from connector
133F terminal 1 to 2.
3 Engage seat height adjust
switch and check for
continuity from connector
133F terminal 1 to 4.
4 Engage seat height adjust
switch and check for
continuity from connector
133F terminal 2 to 3.
5 Engage seat height adjust
switch and check for
continuity from connector
133F terminal 2 to 4.
Section 55 - Electrical System - Chapter 1
Good Reading
Less than 1 ohm
If good reading, go to next
test point.
Less than 1 ohm
If good reading, go to next
test point.
Less than 1 ohm
If good reading, seat
system power and ground
supplies okay.
B - Height Adjustment Circuit Test
Good Reading
Seat height adjustment air
compressor runs.
If compressor runs, but
seat does not adjust,
check for air line leakage.
Continuity
Go to next test point.
Continuity
Go to next test point.
Continuity
Go to next test point.
Continuity
Go to next test point.
55-1-187
Possible Cause of Bad Reading
Open in circuit from seat connector 133
terminal 3 to ground.
Open in circuit from seat connector 133
terminal 4 to ground.
Open in circuit from seat connector 133
terminal 8 to ground.
Possible Cause of Bad Reading
Open in seat height adjustment circuits.
Go to next test point.
Seat adjust switch,
Seat air pump compressor, or
Related circuits within seat assembly.
Seat adjust switch,
Seat air pump compressor, or
Related circuits within seat assembly.
Seat adjust switch,
Seat air pump compressor, or
Related circuits within seat assembly.
Seat adjust switch,
Seat air pump compressor, or
Related circuits within seat assembly.