Whelen headlight flasher on 06 RAM 2500

167

Member
May 27, 2010
324
Memphis, TN
Evidently in 06, Dodge stopped using traditional relays and fuses to power headlights among other things and routes them through and ECM. I have seen other manufactures advise that their devices do not work on 06 or later Dodge vehicles and that damage to the ECM can result.

I have a Whelen UHF2150 headlight flasher. The instructions don't reference not using them on any specific vehicles. It can be set up for positive or negative switched headlights.

Anyone know for sure that it's compatible? Happen to know if the headlights are positive or negative switched? I've tried Google to no avail.

Thanks.
 

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