New Holland T8010 Manual page 1343

Test point
4 Place universal switch in
low beam position.
Measure resistance
between terminals 220D
and 220F.
5 Place universal switch in
head lamp dipping
position.
Measure resistance
between terminals 220E
and 220G.
6 Press horn button.
Measure resistance
between terminals 220H
and 220J.
Section 55 - Electrical System - Chapter 1
Universal Switch Test
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, universal
switch is okay.
55-1-162
Possible Cause of Bad Reading
Open circuit in universal switch.
Open circuit in universal switch.
Open circuit in universal switch.