[bailbud]

i have no power at the positive /+ blade in my trailer plug . it does not matter if the key is on or off . wondering if there is a relay or something that i can check b4 i start digging to deep . thanks for ur help

 

[Davis Cummings]

I would start at the fuse box. Check the fuse diagram.

 

[bailbud]

cant find anything there about trailer battery power

 

[rghavana]

i have no power at the positive /+ blade in my trailer plug . it does not matter if the key is on or off . wondering if there is a relay or something that i can check b4 i start digging to deep . thanks for ur help

with no truck info cant help

 

[bailbud]

06 3500 diesel

 

[tryNto]

Best fix is running a new wire from the Battery to that connection in the 7 pin connector, put a fuse/breaker at the battery to protect the circuit.
Could also use a relay to supply power only when key is on.

 

[sfpcservice]

06 3500 diesel

There is no fuse diagram on the fuse box lid showing a trailer fuse? My 05 has it.

 

[evildiesel]

There’s a fuse for this circuit. It’s one of the j-case fuses (big square ones). says “trailer tow” for the description on the underside of the TIPM (fusebox) lid.

Check that

 

[bailbud]

Thanks I spent some time this weekend and that fuse was out , found some bad wires on the trailer that probably blew the fuse