New Holland T8010 Manual page 1341

Test point
5 Headlight switch Off.
Universal switch in left turn
position.
Measure voltage at
electronic flasher
connector 135 terminal 5.
6 Measure voltage at in-line
connector 9 terminal 2.
7 Measure voltage at
universal switch terminal
220B.
8 Measure voltage at
universal switch terminal
220A.
9 Measure voltage at in-line
connector 9 terminal 1.
10 Headlight switch Off.
Universal switch in right
turn position.
Measure voltage at
electronic flasher
connector 135 terminal 4.
11 Measure voltage at in-line
connector 9 terminal 3.
12 Measure voltage at
universal switch terminal
220C.
13 Measure voltage at
universal switch terminal
220A.
14 Measure voltage at in-line
connector 9 terminal 1.
Section 55 - Electrical System - Chapter 1
Electronic Flasher Test
Good Reading
12 volts
If good reading, go to test
point 10.
12 volts
If good reading, repair
open in 768A circuit.
12 volts
If good reading, repair
open in 21(A) circuit.
12 volts
If good reading, replace
universal switch.
12 volts
If good reading, repair
open in 20(B) circuit.
12 volts
If good reading, go to test
point 15.
12 volts
If good reading, repair
open in 767A circuit.
12 volts
If good reading, repair
open in 22A circuit.
12 volts
If good reading, replace
universal switch.
12 volts
If good reading, repair
open in 20(B) circuit.
55-1-160
Possible Cause of Bad Reading
Open circuit between electronic flasher
and universal switch.
Go to next test point.
Open circuit between electronic flasher
and universal switch.
Go to next test point.
Open circuit between electronic flasher
and universal switch.
Go to next test point.
Open circuit between electronic flasher
and universal switch.
Go to next test point.
Open in 769A(R) circuit from in-line
connector 9 terminal 1 to electronic
flasher connector 136 terminal 3.
Open circuit between electronic flasher
and universal switch.
Go to next test point.
Open circuit between electronic flasher
and universal switch.
Go to next test point.
Open circuit between electronic flasher
and universal switch.
Go to next test point.
Open circuit between electronic flasher
and universal switch.
Go to next test point.
Open in 766B circuit from in-line
connector 9 terminal 1 to electronic
flasher connector 135M terminals 7 or 8.