Model #FM3666
Mechanical
Headlight Flasher
(1.2 FPS)
REV. E 4/27/04 PLITSTR124
The FM3666 headlight flasher is designed to work on both two and four
flas
h to gain attention and to increase the vehicle’s visibility.
headlight systems on any vehicle with a 12 VDC negative ground system. If the
vehicle you are installing this unit on has Daytime Running Lights (DRL’s), you must
order Model #FM3669C. Please use Model #FM3669 if you would like a headlight flasher
which also adds a DRL function to your vehicle.
A properly installed FM3666 headlight flasher will flash the vehicles high beam lights (up
to 70 watts per side) in an alternating pattern at 1.2 FPS. When used at night, the low
beam lights will remain ON for proper illumination of the road, while the high beams will
Installation Instructions
WARNING: DISCONNECT BATTERY BEFORE BEGINNING INSTALLATION !!!
CAUTION: This flasher unit is designed for use on high
beam headlights rated at a maximum of 70 watts
each.
1. Mount the supplied headlight flasher unit in the desired location using the two screws
supplied or an alternative method.
2. The current wiring of your headlights, high and low beams, should resemble the wiring
diagram in Figure 1.
3. The electrical connection in the circled area indicated by the arrow in Figure 1 should be
broken. Disconnect the wire running from your high beam switch to your high beam
headlights and also disconnect any power wires connecting the two high beam head
lights to one another.
4. Connect the wire running from your high beam switch, which was originally connected to
the headlight wires, to the orange wire from the FM3666 flasher unit as shown in Figure
2.
5. Connect one red wire from the flasher unit to the wire from one of the high-beam
headlights and connect the other red wire to the other high beam headlight as shown in
Figure 2.
6. Connect the black fused wire from the flasher to a +12 VDC power source that is
capable of delivering at least 15 amps.
7. When properly connected, the switch should flash your high beams when flipped to the
‘ON’ position, regardless if your high beam switch is on or not.
8. When the switch on the flasher unit is in the ‘OFF’ position, your high beam switch should
function normally.
9. On vehicles with headlights that are both high and low beams, the wiring should be the
same except for the fact that the high beam wires will run to the same light as the low
beam wires, utilizing additional contacts on the back of the lamp.
If you have any questions concerning this or any other Star product,
please contact our Customer Service Department at (585) 226-9787.
If a product must be returned for any reason, please contact our Customer Service Department
to obtain a Returned Goods Authorization number (RGA #) before you ship the product to Star.
Please write the RGA # clearly on the package near the mailing label.
REV. E 4/27/04 PLITSTR124
Low
Beams
High
Beams
Highbeam-
Lowbeam
Switch
Cut the wire from the
highbeam switch and
isolate the two
highbeam headlights
from one another
Low
Beam
High Beams
GOOD
CHASSIS
GROUND
Headlight
On/Off Switch
High Beams
+
BATTERY
Low
Beam
GOOD
CHASSIS
GROUND
Figure 1
Low
Beams
High
Beams
+
BATTERY
ON
15 AMP
BLACK FUSED LEAD
ORANGE
RED
RED
FUSE
CONNECT TO +12 VDC
Figure 2
Low
Beam
High Beams
GOOD
CHASSIS
GROUND
High Beams
GOOD
CHASSIS
Low
Beam
REV. E 4/27/04 PLITSTR124
GROUND
damage or defects occurring as a result of any unauthorized service or repairs
rights which may vary from state to state. Some states do not allow limitations
ONE YEAR LIMITED WARRANTY
The manufacturer warrants each new product, under normal use, against
factory defects in material and workmanship for one year after the date of
purchase. The owner will be responsible for returning to the Service Center
any defective item(s) with the transportation costs prepaid. The manufacturer
will, without charge, repair or replace at its option, products, or part(s), which
its inspection determines to be defective. Repaired or replacement item(s)
will be returned to the purchaser with transportation costs prepaid from the
service point. A copy of the purchaser's receipt must be returned with the
defective item(s) in order to qualify for the warranty coverage.
Exclusions from this warranty include, but are not limited to, bulbs, strobe
tubes, domes, and/or the finish. This warranty shall not apply to any light,
which has been altered, such that in the manufacturer's judgment, the
performance or reliability has been affected, or if any damage has resulted
from abnormal use or service. This warranty does not apply to defect or
damage occurring as a result of disaster, accident, abuse, misuse, lightning,
power surges, or failure to follow instructions in any enclosed manuals. Any
by unauthorized persons shall be excluded from this warranty.
There are no warranties expressed or implied (including any warranty of
merchantability or fitness), which extend this warranty period. The loss of use
of the product, loss of time, inconvenience, commercial loss or
consequential damages, including costs of any labor, are not covered. The
manufacturer reserves the right to change the design of the product without
assuming any obligation to modify any product previously manufactured.
This warranty gives you specific legal rights. You might also have additional
on how long an implied warranty lasts. Some states do not allow the
exclusion or limitation of incidental or consequential damages. Therefore, the
above limitation(s) or exclusion(s) may not apply to you.
If you have any questions concerning this or any other Star product,
please contact our Customer Service Department at (585) 226-9787.
If a product must be returned for any reason, please contact our Customer Service Department
to obtain a Returned Goods Authorization number (RGA #) before you ship the product to Star.
Please write the RGA # clearly on the package near the mailing label.
REV. E 4/27/04 PLITSTR124
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