Wig Wags in a 2002 TrailBlazer

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c17loadsmasher
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Joined: Mon Jul 21, 2003 7:26 pm

Wig Wags in a 2002 TrailBlazer

Post by c17loadsmasher »

Has anyone installed the Whelen UHF 2150A wig-wag flasher in an '02 TrailBlazer? From what I've read it's not so easy.. any feedback is appreciated...thanks!
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FFParamedic571
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Post by FFParamedic571 »

Ive used a regular sound off without a problem.. It is standard positive switching. I just finished one for the US marshalls..
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c17loadsmasher
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Post by c17loadsmasher »

Okay, excellent. Someone had told me that it was positive switched until it got to the relay board and then it was negative switching beyond that point. I just wanted to make sure that it wouldn't backfeed into the computer system in the truck and cause any problems. If so, I may just put some diodes in to prevent that. Thanks for your help :-)
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