The headlights and taillights do not work?

GERALD29

MEMBER
2008 ACURA MDX
209,100 MILES

My headlights and taillights don't work.

Monday, November 25th, 2024 AT 1:57 PM

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,807 POSTS

I would check fuse #7 which powers both systems, here is a guide to help and the fuse location as well.

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

test the fuse for power with the systems on. The fuse is in the panel under the flash on the left side. Check out the images (below). Please let us know what happens.

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Monday, November 25th, 2024 AT 4:54 PM

GERALD29

MEMBER
1 POST

No it didn't work that fuse was for the interior lights I'm trying to see why my head and tail lights not working all fuses seem to be good just don't have head and tail lights my signals and brake light work that's it

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Tuesday, November 26th, 2024 AT 10:00 AM

KEN L

MASTER CERTIFIED MECHANIC
47,807 POSTS

You might have a MICU that has gone out, here is the headlamp and exterior light wiring diagrams so you can see how the system works and which fuses to check. You will see fuse #7 runs both systems. If the MICU is out it might have a code in the CAN, 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

This guide can help you check for power

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the images (below). Please let us know what happens.

Images (Click to make bigger)