wiring issue..where to start

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

02blkram47

Senior Member
Joined
Oct 19, 2011
Posts
1,147
Reaction score
138
Location
Lebanon, NH
Ram Year
2018 Ram 1500 Limited
Engine
5.7 Hemi
video shows my wiring issue.

I've been thinking about buying new rear lights because my passenger side tail lights are having issues. At first I thought it was in the wiring of the light itself but when I think about how it malfunctions I think it might be somewhere else. For example: when I drive my truck during the day and DONT have my headlights on my rear tail lights work just fine. Break lights, turn signals all work. Now if I turn my headlights ON now my passenger side tail light stops working. No break light but my turn signal does work. Anyone have any idea why my headlights have any influence on my tail lights? And if you do where do start to look to fix this?
 
Last edited:

BlackedOutHemi

Senior Member
Joined
Feb 27, 2011
Posts
5,454
Reaction score
196
Location
DFW, Texas
Ram Year
2012 & 2012
Engine
5.7L HEMI & 6.7L Cummins
Then running lights are turned on whenever you turn on your headlights, and since you have an '02, it has the three bulb system. Are the running lights all on?
 
OP
OP
02blkram47

02blkram47

Senior Member
Joined
Oct 19, 2011
Posts
1,147
Reaction score
138
Location
Lebanon, NH
Ram Year
2018 Ram 1500 Limited
Engine
5.7 Hemi
That's a good question ill have to check that tomorrow.
 

BlackedOutHemi

Senior Member
Joined
Feb 27, 2011
Posts
5,454
Reaction score
196
Location
DFW, Texas
Ram Year
2012 & 2012
Engine
5.7L HEMI & 6.7L Cummins
Well, my best guess is the wiring to the running lights is messing up something with the bulb that runs the brake lights when you turn them on.
 
OP
OP
02blkram47

02blkram47

Senior Member
Joined
Oct 19, 2011
Posts
1,147
Reaction score
138
Location
Lebanon, NH
Ram Year
2018 Ram 1500 Limited
Engine
5.7 Hemi
I created a short video of what is happening to my lights. I'm hoping this will explain better than what I've been trying to do through posts.

Use the link above.
 
Last edited:
OP
OP
02blkram47

02blkram47

Senior Member
Joined
Oct 19, 2011
Posts
1,147
Reaction score
138
Location
Lebanon, NH
Ram Year
2018 Ram 1500 Limited
Engine
5.7 Hemi
Oh. Try using the one above. That seems to work.
 
Top