Star Headlight & Lantern STAR-PA RSK966P - Manual (Page 14)

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Troubleshooting Guide
If a problem exists in only one head, a strobe tube may have burned out, or there may be an
open electrical connection in the wiring harness or strobe head. Check connections at and
between the strobe pack and the strobe head, including all wiring. Replace the
malfunctioning heads and/or wiring harnesses if necessary.
If none of your 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 RP966 and RP996 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 POWER connector on the strobe pack. 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 13.8 volts should be present. Low voltage to the pack can
cause erratic flashing or even complete failure of the heads. A minimum of 11.0 volts
should be present for the pack to operate properly.
If you do not have proper voltage present your power or ground is bad. Skip to the
section on Checking a Bad Power or Ground Connection.
If your pack is receiving sufficient voltage then continue to step 3.
3. Check the Power connector to be sure that +12VDC is not applied to the white
wire. The white wire is used for pattern select. The patterns are changed by touching
AND RELEASING this wire to +12VDC. A constant voltage applied to the white wire on
the Power connector will prevent the strobe pack from flashing.
4. Check that the proper voltage is reaching the necessary ENABLE inputs.
The black and red wires on the ENABLE plug should have +12VDC. The white wire
should also have +12VDC if the jumper is set for 3-Pair Head Select (see pages 3 and
8).