Lit. No. 27366, Rev. 01 February 15, 2008
76
TROUBLESHOOTING GUIDE
10-Pin
Connector
Ignition on & snowplow
connected
Ignition on & snowplow
disconnected
A
Unused Unused
B
Unused Unused
C
12V from ignition 12V from ignition
D 12V to control/coils No power
E
Unused Unused
F
12V from 15-Amp fuse holder 12V from 15-Amp fuse holder
G
12V from 7.5-Amp fuse holder 12V from 7.5-Amp fuse holder
H
Common to Isolation Module Common to Isolation Module
J
Ground from Isolation Module Ground from Isolation Module
K
12V from Isolation Module 12V from Isolation Module
Vehicle Control Harness (#1)
HARNESS TESTS
Test Harness (PN 28957)
Connecting this harness between any of the four Isolation Module harnesses
and the module will allow you to test each circuit "live" by checking for voltage
or ground at specified locations as described in this guide.
A
K
E
C
B
D
F
H
J
G
A
C
B
E
D
A
C
D
E
B
G
F
H
J
K
A
C
D
E
B
G
F
H
J
K
To Harness
To Isolation
Module Port
Test End