Brakes lights work but running taillights will not turn on?

2013 HYUNDAI SONATA

189,000 MILES • 2.4L • V6 • 2WD • AUTOMATIC

BRANDON STRAUGHTER

MEMBER
1 POST

I changed the bulbs the brake lights work but the running lights will not come on, both sides are like this. is there a fuse for this? Or is there something else I can do?

Jul 27, 2023 at 9:22 AM

STRAILER

✓ASE Certified Mechanic
54,837 POSTS

There are 5 fuses that run the system here are three guides to help us fix the problem and I have included the blinker and running light wiring diagrams so you can see which fuses to test and how the system works.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

You might have a BCM that is out but to be sure, you can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

Images (Click to enlarge)

Professional Diagram for 2CarPros Members
Click here to log in and view diagram.

Jul 28, 2023 at 11:33 AM