Lit. No. 30118, Rev. 00
June 15, 2020
77
TROUBLESHOOTING
WARNING
Keep 8' clear of the blade when it is being
raised, lowered, or angled. Do not stand
between 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 turns
ON but the motor does not run.
1. Check both fuses on harness B. Replace any
blown fuses, then retest snowplow function.
2. Disconnect the vehicle battery cable from the
snowplow battery cable. Disconnect the 8" red
battery cable from the large terminal of the
motor relay and isolate it to eliminate potential
for accidental blade movement during testing.
3. Reconnect the vehicle battery cable to the
snowplow battery cable. Check for 12V at the
small terminal of the motor relay with the red
wire attached to it.
If 12V is not present,
check the red wire and
harness B. Replace/repair either the wire or
the harness as needed.
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.
4. 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
connect the 8" red battery cable.
MOTOR AND MOTOR RELAY TEST
If switched 12V is not present,
disconnect
the vehicle battery cable from the snowplow
battery cable and replace the motor relay.
If switched 12V is present at the empty
large motor relay terminal,
disconnect the
snowplow battery cable from the vehicle
battery cable and replace the motor.
5. Once testing is complete, reinstall the 8" red
battery cable. Reconnect the battery cables,
then recheck the snowplow functions.
S5C1
(DK GRN)
S5C2
(ORN)
S6C2
(WHT)
S6C1
(BRN)
S1
(PNK)
S4
(BLU)
S3
(YEL)
Large
Motor Relay
Terminals
Harness A
Harness A
Harness B
Harness C
HARNESS CONNECTIONS
