Western MVP PLUS Series User Manual

Lit. No. 27366, Rev. 01 February 15, 2008
80
TROUBLESHOOTING GUIDE
WARNING
Keep 8' clear of the blade when
it is being raised, lowered or
angled. Do not stand between
the vehicle and blade or
directly in front of the blade. If
the blade hits or drops on you,
you could be seriously injured.
Perform this test if the control lights
up and/or turns ON, but the motor
does not run.
1. Check the motor relay fuse on
harnesses B. Replace if fuse is
blown, then retest snowplow.
2. Remove the coil fuse F1 in
harness B and the coil fuses F1
and F2 in harness C of the Plow
Module. Remove the 8" red
battery cable from the large
terminal of the motor relay and
isolate it. Removing the fuses
and isolating the battery cable
will eliminate the potential of
accidental blade movement
during testing.
3. Check for 12V at the small
terminal of the motor relay with the
red wire attached to it. If 12V is not
present, recheck the coil fuse F2
in harness B. If the fuse is good,
check the red wire and harness B.
Replace/repair either the wire or
the harness as needed.
4. If 12V is present at the small
relay terminal with the red wire,
turn the control ON, then check
for switched ground on the small
terminal with the black wire
attached to it while activating any
function except LOWER. If
switched ground is not present,
check the black wire and
harness B of the Plow Module.
Replace/repair either the wire or
the harness as needed.
5. Check for switched 12V at the
empty large motor relay terminal
while activating any control
function except LOWER. The
empty terminal is the terminal
that would normally contain the
8" red battery cable. If switched
12V is not present, replace the
motor relay.
6. If switched 12V is present at the
empty large motor relay terminal,
replace the motor.
7. Once testing is complete,
reinstall fuses and 8" red battery
cable, then retest snowplow.
MOTOR AND MOTOR RELAY TEST
* See wire stamping for fuse identification.
Harness C
C
B
A
Harness C
Fuse Holder
(Remove F1 & F2.*)
Plow Module
S5S4 S6 S7
S9
S8 S10 S11
Plow
Battery Cable
Harness B
8" Red Cable
Harness B
Fuse Holder
(Remove F1.*)
Black
Red
S1 S2 S3
Motor Relay
+
-

Western MVP PLUS Series Specifications

General

Brand	Western
Model	MVP PLUS Series
Category	Snow Blower
Language	English