Vehicle electrical guru's heed my call!!

[Starbreaker]

I am researching a vehicle/trailer battery charge line for my 2005 Chevy Trailblazer. My dilemma, besides being an electrical idiot, is that supposed on the Trailblazer with a seven pin connector there is a trailer (+) connection in the plug and the supposedly there is a red wire with a ring connector in, around or under the fuse block in the engine bay. You just have to connect it. The fuse is already in place in the fuse block at position 32. Can anyone smarter then me help either research this or point me in the right direction?

[powercat_ras]

You may be confused about the fuse. It may be a fuse for a trailer brake controller which is different and goes to trailer brake controller which then puts put battery from the brake controller to a different pin (2) on the seven way.

I would use a meter to locate exactly where the Aux 12V (pin 4) goes, if just ends as a wire without a fuse in line then you need to protect it. On my Winnebago Aux 12V is fed by a 20 Amp circuit breaker and that works fine for me to use for a toad charge line.

If the toad happens to have a real low battery when you connect it to the RV it can pull quite a few amps and if the fuse or circuit breaker is too small it can open the circuit. One way to avoid this is to use an auto-reset circuit breaker, you can buy them at auto parts stores.

[Old-Biscuit]

If you hav e found the 'red wire' then connect it to the stud as indicated in picture

[Starbreaker]

Originally Posted by Old-Biscuit

If you hav e found the 'red wire' then connect it to the stud as indicated in picture

Looks like it comes right out of that loom. I'll look closer. Thanks.

[Starbreaker]

Ahh found the red wire.. So that should be the 12(v) aux line to that pin? Should act as a charge line then. Now just to double check the fuse situation.

[dcarver]

Had the exact same think on our buick rainier. No idea why that wire wasn't connected in the 1st place.