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Posted by D Sherman [64.134.145.183] on Tuesday, April 26, 2011 at 21:42:09 :
In Reply to: Re: M37 lights posted by Rocky in So Cal [76.228.70.180] on Tuesday, April 26, 2011 at 20:53:59 :
I have never seen an M37 that had a military flasher unit on it. I know they existed, but most have generic civilian signalstat units added as part of a 12 volt conversion. The military unit used a separate relay box. I think all the switching for the signalstat units is inside the housing. In general, it sounds like your wiring and bulb are good but the switching or flashing function is not working. A bad flasher should be bad for both left and right, so if right works and left doesn't look to the switching. The switching is fairly complicated in order to make the same bulb do double-duty (brake and turn). If this is an aftermarket setup, consider that perhaps it never worked right and the previous owner gave up on it. I can't really describe in writing how to troubleshoot she switching function, whether it's part of the switch assembly or it's in the relay box. You would need a wiring diagram and the ability to trace through it, unless you can just take it apart and look at it and see something that's obviously broken or burned.
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