Chapter 5: Maintaining and Servicing the INTEGRITY
42
Integrity Lightbar
Table 5.1 Troubleshooting tips (continued)
Problem
Corrective Action
The lightbar turns off when the Flash
Takedown/Alley lights turn on
✔
Ensure that the vehicle battery is fully charged.
✔
Check that the lightbar’s red power line (+BAT) and black
ground-power line (–GND) are properly connected to a good,
fully charged 12-volt battery.
✔
Check the red power line (+BAT) and the black ground-power
line (–GND) connections in the lightbar and vehicle.
✔
Reset the controller (page 39).
The lightbar has a delayed response to
being shut off
✔
Ensure that the connections on the Serial Interface Module are
kept separate from strobe supplies.
✔
Check all the ground connections, especially on the Serial
Interface Module.
✔
Reset the controller (page 39).
A Flash Takedown/Alley light stays on
with ignition power applied
✔
Ensure there is no voltage on the corresponding control wire.
✔
To see if the ROC board is bad, swap it with a similar board.
✔
Swap the cables on the lightbar controller outputs with a known
good output. If the problem moves to another halogen light, send
the lightbar controller to Federal Signal for repair.
✔
Reset the controller (page 39).
Takedown/alley lights work, but Flash
Takedown/Alley lights do not work
✔
Ensure that 12 Vdc is applied to the takedown and alley (red/
black) control wire.
✔
Check the 12 Vdc power and negative ground connections to
the lightbar to ensure there is enough current.
✔
Reset the controller (page 39).
Only one takedown light turns on
✔
Check the connections from the lightbar controller to the ROC
boards and ensure they are in the proper locations.
✔
Reset the controller (page 39).
SignalMaster LEDs do not light
✔
Check the switch settings on the Serial Interface Module. Ensure
they are set for the correct operation. See Table 3.2 on page 16.
✔
Ensure that Switch 4 on SW-2 is in the correct position for the
selected operation on the Serial Interface Module and ignition
power was removed and reapplied.
✔
Check the connections at the SignalMaster controller. If the
controller is a model SS2000SM, ensure that the connector has
power and the ground is connected to pins 10 and 11 on the
SignalMaster plug.
✔
Reset the controller (page 39).
Summary of Contents for Integrity44
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