Star Headlight & Lantern 8600 Series Intercepto - 66" Tow Packages - Manual (Page 22)

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Checking one non-working strobe or LED head:
If a problem exists in only one head, a strobe tube or LED head may have burned out, or
there may be an open electrical connection in the wiring harness or strobe head.
1. Check connections at and between the strobe pack and the faulty strobe head or between
the flasher unit and LED head, including all wiring.
2. Disconnect both the faulty head and a working head.
3. Check the faulty head by connecting it into the side you just unplugged the working head
from. If the faulty head still does not work, then the head is bad and will need to be replaced.
4. If the head that was not flashing works when connected to the other side, the problem
probably lies in the power pack or flasher unit. Verify this by plugging the other head (the
original working head you just unplugged) into the side that previously had the non-working
head.
Checking multiple non-working strobe heads:
If the problem exists in only your strobe heads, and none of your strobe heads are
flashing, follow these steps to determine the problem:
1. Check all fuses, including those at the battery, at the switch panel, in the dash, and
on the pack (if applicable). The strobe power supplies all have automotive “blade”
type fuses. Remove these fuses, and check them to confirm they have not blown.
Replace any blown fuses with only fuses of identical values. Replacing the fuse with
the wrong rating may damage your pack and/or vehicle, and will void your warranty.
2. Check the power and ground wires to your pack. With the vehicle turned off and
while the pack is running, measure the voltage across the red wire (pin 1) and the
black wire (pin 2) of the
PWR connector on the power pack (the one with the Black,
Black, and Purple wires). Push the probes of the test meter down into the connector
at the wire entry points to contact the terminals for the measurement. A nominal 12.5
volts should be present. Low voltage to the pack can cause erratic flashing or even
complete failure
of the heads. A minimum of 10.5 volts should be present for the
pack to operate properly. If you do not have proper voltage present, your power or
ground is bad. Continue to step 3. If your pack is receiving sufficient voltage then
skip to step 5.
3.
Test the Power to the power supply from the terminal block. If sufficient voltage
is not reaching the pack, and you have already determined that proper voltage is
reaching your terminal block, perform the following tests: With the vehicle turned off
and while the pack is running, measure the voltage drop in the red wire by taking a
reading from pin 1 of your Power connector (Red wire) and the corresponding wire on
the terminal block. If this reading exceeds 0.25 volts then there is a poor connection
between the terminal block and your power supply in the red wire and it should be
checked.
4. Check the Ground wire on the pack. If you still have not located the problem,
troubleshoot the connections between pin 2 (black wire) of the
PWR connector on the
power pack and the lightbar base, while the lightbar is running. If this reading
exceeds 0.25 volts then there is a poor connection between the pack and the lightbar
base in the black wire and it should be checked.
BLACK (GROUND)
RED (+12 VDC)
PURPLE (High/Low)
BLACK (Power)
BLACK (GROUND)
P
O
W
E
R
(Troubleshooting cont’d)