Driver's side headlight flashes while car is off

2018 HONDA CIVIC
15,000 MILES • 1.5L • 4 CYL • TURBO • 2WD • AUTOMATIC
Avatar
IGORKAR91
  • MEMBER
  • 3 POSTS
Hello,

The driver side highlight flashes randomly, it can happen while car is on or off.
The frequency is inconsistent it happens very randomly.
I've attached a short video.
Jun 20, 2022 at 10:59 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,176 POSTS
I don't see the video. If you are on mobile it can take some time to upload. Anyway, it sounds like the BCM is going out. To be sure we perform a CAN scan to confirm the failure. Here is a guide and video on how to do the job and I have included how to change out the BCM and the headlight wiring diagram so you can see how the system works in the diagrams below.

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Jun 21, 2022 at 8:47 AM
Advertisement
Avatar
IGORKAR91
  • MEMBER
  • 3 POSTS
Thanks for the reply!
Here is the video:
Video (Click to enlarge)
Attached Media
Jun 21, 2022 at 11:39 AM
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,176 POSTS
The video doesn't show much, can you please recheck it?
Jun 22, 2022 at 7:56 AM