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Andrew MerrittAug 22, 2025
What to do if an LED module on my Federal Signal Corporation Automobile Accessory does not light?
- NNicholas Payne Jr.Aug 22, 2025
If an LED module isn't lighting up, try swapping the LED board with a known working one to determine if the original board is faulty. Check the cable connections between the light bar controller and the LED ROC board. Also, ensure that the STEADY BURN switches on the light bar controller (SW3 PSR for the passenger side and SW3 DSR on the driver side) are correctly set. If the non-lighting module is a rear one, inspect the SignalMaster connections.
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