29453
Lit. No. 29451, Rev. 00
2
November 21, 2006
Blizzard reserves the right under its product improvement policy to change construction or design details and furnish equipment when so altered
without reference to illustrations or specifications used. Blizzard or the vehicle manufacturer may require or recommend optional equipment for snow
removal. Do not exceed vehicle ratings with a snowplow. Blizzard offers a limited warranty for all snowplows and accessories. See separately printed
page for this important information. The following is a registered (
®
) trademark of Douglas Dynamics, L.L.C.: BLIZZARD
®
.
Printed in U.S.A.
7. Connect the yellow/black wire just removed to the
yellow/black wire with the insulated blade terminal
from the new relay socket. Wrap the connection
with electrical tape.
8. Insert the second yellow/black wire from the new
relay socket into position 87 of the high beam
relay socket.
9. Remove the light green wire with a black stripe
from position 87 of the low beam relay socket.
Bend the terminal locking tab back up so it will
lock into the new relay socket.
10. Insert the light green/black wire just removed into
position 87A of the new relay socket.
11. Insert the green/black wire from the new relay
socket into position 87 of the low beam relay
socket.
12. Insert the white terminal locks removed in Step 2
into the two original relay sockets; insert one of the
supplied terminal locks into the new relay socket.
13. Reinstall the headlamp relays removed in Step 1;
install the supplied relay into the new relay socket.
14. Cable tie wires as needed away from any sharp,
hot or moving parts.
15. Repeat for the passenger side.
86
85
30
87
87A
HIGH BEAM IN
LTGRN
LOW BEAM IN
VEHICLE HIGH BEAM
YEL/RED
YEL
SNOWPLOW
HIGH BEAM
LTGRN/BLK
LTGRN/RED
SNOWPLOW LOW BEAM
VEHICLE LOW BEAM
BLK/WHT
PARK LAMP
30
BEAM
RELAY
HIGH
85
86
85
86
87A
87
30
GRN/YEL
87A
87
BEAM
RELAY
LOW
(NEW)
(NEW)
A COMMON
WHT
B GROUND
BLK
GRY
VIO
C LEFT TURN
D PARK-RUN
F HIGH BEAM
E LOW BEAM
YEL/BLK
LTGRN/BLK
VIO
GRY
SNOWPLOW HEADLAMP
VEHICLE HARNESS
VEHICLE HEADLAMP
B COMMON
WHT/RED
C HIGH BEAM FEED
YEL
A LOW BEAM FEED
LTGRN
B COMMON
WHT/RED
C HIGH BEAM
YEL/RED
A LOW BEAM
LTGRN/RED
BLK
GRN/YEL
GRN/YEL
FROM VEHICLE HARNESS
PARK
TURN
GRN/YEL
GRN/YEL
(NEW)
YEL/BLK
(NEW)
YEL/BLK
(NEW)
YEL/BLK
(NEW)
GRN/BLK
FROM VEHICLE PARK/TURN
GROUND FROM CAB SWITCH
BLK
YEL/BLK
FROM VEHICLE PARK/TURN
TURN
PARK
GRY
PNK
YEL
HIGH BEAM IN
VEHICLE HIGH BEAM
YEL/RED
BLK
30
87A
85
86
87
BEAM
RELAY
HIGH
(NEW)
RELAY
BEAM
LOW BEAM IN
LTGRN
VEHICLE HARNESS
LOW BEAM FEED A
VEHICLE HEADLAMP
LTGRN
LOW BEAM E
PARK-RUN D
HIGH BEAM F
RIGHT TURN C
HIGH BEAM FEED C
COMMON B
GROUND B
COMMON A
YEL/BLK
YEL
WHT/RED
BLK
WHT
GRY
PNK
LTGRN/BLK
SNOWPLOW HEADLAMP
YEL/BLK
(NEW)
VEHICLE LOW BEAM
LTGRN/RED
SNOWPLOW HIGH BEAM
YEL/BLK
(NEW)
SNOWPLOW LOW BEAM
LTGRN/BLK
GRN/BLK
87
(NEW)
30
87
87A
85
86
(NEW)
GRN/YEL
GRN/YEL
(NEW)
LOW BEAM A
HIGH BEAM C
COMMON B
YEL/RED
WHT/RED
LTGRN/RED
PARK LAMP
BLK/WHT
85
30
86
87A
LOW
GRN/YEL
(REMOVED FROM LOW
BEAM RELAY 85)
(REMOVED FROM HIGH
BEAM RELAY 87)
(REMOVED FROM LOW
BEAM RELAY 87)
(ALL RELAY SOCKETS
VIEWED FROM THE WIRE SIDE)
NEW RELAY SOCKET
GRN/
YEL
(REMOVED
BEAM RELAY 85)
(ALL RELAY SOCKETS
VIEWED FROM THE WIRE SIDE)
NEW RELAY SOCKET
(REMOVED FROM
HIGH BEAM RELAY 87)
(REMOVED FROM LOW
BEAM RELAY 87)
A
B
C
D
E
F
B
A
(CONNECTORS VIEWED
FROM TERMINAL SIDE)
(CONNECTORS VIEWED
FROM TERMINAL SIDE)
A
B
C
D
E
F
FROM LOW
Main Lighting Harness Schematic
