Question about 2003 Oldsmobile Bravada

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Only getting running lights out of trailer plug

2003 Oldsmobile Bravada trailer plug(7 wire) factory installed is only supplying power to running lights and tail lights. Plug looks OK, fuses not blown. How do I check further?

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If you haven't already sprayed plug with penetrating spray or similar (WD-40) then do that first. Next, do yourself a favor, go to a hardware or autoparts store & purchase a 12 VDC test light. (about $5-$10) and it will be one of the best investments you ever made as far as tools go. With it, you can test for blown fuses bad wiring etc. Do you know where I'm going with this as in testing for power in those wires? Start at plug on car, if the power is that far, then it's the trailer side that's causing trouble. If no power at plug on car and your not sure how to proceed, get back to us. You did check for fuses under hood as well right?

Posted on May 25, 2009

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