Case IH AFX8010 Repair Manual page 1728

Test Point
6 Hold Mirror Adjust Switch
S-27 in DOWN position.
Check the resistance
between RH Mirror M-19
(pin 2) and ground.
7 Hold Mirror Adjust Switch
S-27 in UP position.
Check the voltage at RH
Mirror M-19 (pin 2).
8 Hold Mirror Adjust Switch
S-27 in UP position.
Check the resistance
between RH Mirror M-19
(pin 4) and ground.
BODY AND STRUCTURE - USER PLATFORM
Good Reading
Less than 1 ohm
If good reading, go to next
test point.
12 volts
If good reading, go to next
test point.
Less than 1 ohm
If good reading, and right
mirror does not operate
properly, replace right
mirror assembly.
E.34 / 26
Possible Cause of Bad Reading
Open in circuit 956 (GY) between Mirror
Select Switch S-57 connector X178 (pin
3) and RH Mirror M-19 (pin 2).
Mirror Adjust Switch S-27. Perform A -
Mirror Adjust Switch Test, steps 3 and 14.
Short to ground which affects circuit 956
(GY) or open in circuit 956 (GY) between
Mirror Select Switch S-57 connector
X178 (pin 3) and RH Mirror M-19 (pin 2).
Check the X036 (pin 20) and X121 (pin
2) in-line connectors for connection. A
short to ground will blow Fuse F09.
Mirror Select Switch S-57. Perform B -
Mirror Select Switch Test.
Open in circuits 955 (WH) or 957 (WH)
between Mirror Adjust Switch S-27
connector X126 (pin E) and RH Mirror
M-19 (pin 4). Check the X036 (pin 21)
and X121 (pin 4) in-line connectors for
connection.
Mirror Adjust Switch S-27. Perform A -
Mirror Adjust Switch Test, steps 3 and 19.