Comanche County Posted March 19, 2014 Share Posted March 19, 2014 I've searched. I've replaced the flashers, tested bulbs, replaced the turn signal switch in the column also. I've freshened the grounds. The taillights (both bulbs- brakes and signal bulbs) work with the head lights on, but the turn signal lights don't flash. The hazard lights don't work unless the headlight switch is pulled then they flash fine. I'm a bit vexed at this point. I think the culprit could be my worn out and corroded fuse box or a short somewhere in the interior harness, maybe the added on trailer light harness. Link to comment Share on other sites More sharing options...
92tanMJ Posted March 19, 2014 Share Posted March 19, 2014 Have you checked the fuses in the engine bay? (assuming you have a HO) Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 19, 2014 Share Posted March 19, 2014 You have a back-feeding problem, but you know that. :yes: Did all this start with the trailer harness hookup? Link to comment Share on other sites More sharing options...
Comanche County Posted March 20, 2014 Author Share Posted March 20, 2014 its a Renix,,, No Don, I didn't know that,,,,how can I fix it though? This has really got me perplexed and I don't mind admitting it. The trailer wire harness seems fine. All bulbs are okay, Link to comment Share on other sites More sharing options...
Lee21490 Posted March 20, 2014 Share Posted March 20, 2014 its a Renix,,, No Don, I didn't know that,,,,how can I fix it though? This has really got me perplexed and I don't mind admitting it. The trailer wire harness seems fine. All bulbs are okay, Basically its shorting out somehere, And causing power to back-feed through the turn signal switch, causing all sorts of @#$% ups. Had to deal with this the other week on mine. PO Had half-assed a trailer harness, & left $#!& bare in a few spots. Link to comment Share on other sites More sharing options...
Comanche County Posted March 20, 2014 Author Share Posted March 20, 2014 I hate electrical stuff...I'm gonna crash tonight, then I'll wake up and flail myself a few times and see what I find. Link to comment Share on other sites More sharing options...
HOrnbrod Posted March 20, 2014 Share Posted March 20, 2014 its a Renix,,, No Don, I didn't know that,,,,how can I fix it though? This has really got me perplexed and I don't mind admitting it. The trailer wire harness seems fine. All bulbs are okay, Million dollar question. Back-feeding occurs when the normal circuit + to - current flow is impeded. The most common cause is when the normal circuit ground is corroded, causing impedance/resistance. Current always flows to the path of least resistance, so if the circuit ground point has resistance, it will go to ground through say a bulb filament, a buggered up fuse panel or harness; anything with lower resistance to ground. I would start with performing all the ground cleaning/refreshing procedures Cruiser has posted. If you are lucky, that will cure your weird problem(s). If not, then it comes down to isolation of the affected circuits by defusing and disconnecting individual circuits. Usually a PITA if you don't visually see the problem in the process. Do the ground checks first mate is my humble advice. Link to comment Share on other sites More sharing options...
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