So, turn signals went out a few weeks ago. I did not notice at the time if the break lights went out at the same time, but they are also out. Browsed a few pages, found a few people who had both go out simultaneously, and tried all the usual things. Fuses, turn stat, hazard fuse, turn signal switch, break switch, but none of it has worked. I have head/tail lights, marker lights, back up lights, dash lights, ignition etc, ground wire is secure, but no break lights, turn signals, or hazard flashers. Without tearing into the entire wire harness, does anyone have any ideas?

2000 Dodge Ram 2500 5.9L V8 4x4 quad cab flat bed.

 

Do the taillights work?

Have a trailer harness on your truck? If so, check where that harness hits the main harness going to the back of the truck.

Welcome to DF!

 

Yes taillights, and yes trailer harness. Trailer wiring from rear, through goose neck and forward looks good, no damage, nothing overly worn.

 

Check where the trailer harness hits the main harness. The connections weren't the best from the factory, and they have been know to cause issues there.

Do the brake lights on your trailer work?

 

Checked the trailer wiring again, wasn't getting power to the plug, found a loose connector where the trailer lines leave the main harness. All lights working now, thank you!

 

There ya go. Dodge wasn't the best with their connectors there.....