Headlight blinking on and off

WBF21

MEMBER
2005 CHEVROLET EQUINOX
3.4L
5 CYL
AWD
AUTOMATIC
102,500 MILES

Changed driver side headlight, which is now very dim and no high beam, and now the passenger side headlight flashes on and off. Looks like morse code.

Sunday, May 3rd, 2015 AT 8:18 PM

5 Replies

JACOBANDNICKOLAS

MECHANIC
108,128 POSTS

Hello,

Please check the grounds fist but it sounds like you blow a fuse on the BCM. Is it a stock headlight set up? Here is a guide to elp you check the fuses and the fuse location along with the headlight wiring diagrams so you can see how they system works.

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

Check out the diagrams (Below). Please let us know what you find. Cheers

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Sunday, May 3rd, 2015 AT 8:30 PM

WBF21

MEMBER
2 POSTS

Thank You for your answer, but I did check the ground and the other wires and connection points. That car has never done this before, and I bought it brand new in Dec. 2004. So I checked the BCM fuses and found one blown replaced it and know it all works! Thanks :)

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Tuesday, May 5th, 2015 AT 2:36 AM

JACOBANDNICKOLAS

MECHANIC
108,128 POSTS

Use 2CarPros anytime, we are here to help. Please tell a friend.

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Wednesday, May 6th, 2015 AT 6:41 PM

JIMJMIII

MEMBER
2 POSTS
2005 CHEVROLET EQUINOX
6 CYL
FWD
AUTOMATIC
53,000 MILES

At one time I had the drivers side low beam headlight go out. I replaced the buld and it worked for about two hours. Then the pass side went out replaced the bulb and it worked. At the time to check headlights the drivers side went out. I can not keep replacing the bulbs. Is there a way to get a wiring diagram to trace wires to try to find the problem. Thank you in advance. Jim

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Wednesday, December 19th, 2018 AT 1:50 PM (Merged)

JIMJMIII

MEMBER
2 POSTS

Found the trouble to the drivers headlight low not working. There must have been a repair to replace the socket for the headlight, because one of the splices came apart. Repair the splice and now the headlight works.