Case IH AFX8010 Repair Manual page 1730

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Test Point
6
Hold Mirror Adjust Switch
S-27 in DOWN position.
Check the resistance
between German Mirror
M-30 (pin 2) and ground.
7
Hold Mirror Adjust Switch
S-27 in DOWN position.
Check the voltage at
German Mirror M-30
(pin 2).
8
Hold Mirror Adjust Switch
S-27 in UP position.
Check the resistance
between German Mirror
M-30 (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
German mirror does not
operate properly, replace
German mirror assembly.
E.34 / 28
Possible Cause of Bad Reading
Open in circuit 966 (GY) between Mirror
Select Switch S-57 connector X178 (pin
1) and German Mirror M-30 (pin 2).
Check the X036 (pin 19) and X287 (pin
2) in-line connectors for connection.
Mirror Adjust Switch S-27. Perform A -
Mirror Adjust Switch Test, steps 3 and
14.
Short to ground which affects circuit 966
(GY) or open in circuit 966 (GY) between
Mirror Select Switch S-57 connector
X178 (pin 1) and German Mirror M-30
(pin 2). A short to ground will blow Fuse
F09. Check the X036 (pin 19) and X287
(pin 2) in-line connectors for connection.
Mirror Select Switch S-57. Perform B -
Mirror Select Switch Test.
Open in circuits 963 (GY) or 957 (WH)
between Mirror Adjust Switch S-27
connector X126 (pin E) and German
Mirror M-30 (pin 4). Check the X036 (pin
21) and X287 (pin 4) in-line connectors
for connection.
Mirror Adjust Switch S-27. Perform A -
Mirror Adjust Switch Test, steps 3 and
19.

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