# Brake and reverse lights come on together. No tail lights

**URL:** <https://community.cartalk.com/t/brake-and-reverse-lights-come-on-together-no-tail-lights/108681>\
**Category:** Maintenance/Repairs\
**Tags:** dakota, dodge\
**Created:** [October 17, 2017, 12:31am UTC](https://community.cartalk.com/t/brake-and-reverse-lights-come-on-together-no-tail-lights/108681 "2017-10-17T00:31:20Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![AlaskaIan](https://avatars.discourse-cdn.com/v4/letter/a/4da419/32.png) [@AlaskaIan](https://community.cartalk.com/u/AlaskaIan)\
**Post date:** [October 18, 2017, 5:31pm UTC](https://community.cartalk.com/t/brake-and-reverse-lights-come-on-together-no-tail-lights/108681/21 "2017-10-18T17:31:10Z")

</div>

If I do not find a smoking gun in the trailer harness, I will certainly try  
additional grounding. I have experimented some using gator clips on the  
existing ground lug, but not in a very organized manner.  
I did find one mystery ground wire running from the inside of the rear  
driver side tail light cavity where the canopy light is wire passes through  
all the way into the engine bay near the fuse block, following the path of  
the e-brake cable under the truck. It is terminated to the canopy light  
harness at the rear and floats free in the engine bay. I have tried  
terminating this to ground, but there was no change in behavior.

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