The low beam headlights will not work

DON HANKINS

MEMBER
2004 HONDA CIVIC
4 CYL
FWD
AUTOMATIC
104,000 MILES

I have a 2004 honda civic ex. The low beam headlights will not work but the high beam lights work. All other lights come on with the switch. The switch is located on the steering column. All fuses are good. I have pulled the relays and there is nothing rattling inside. The bulbs appear to be good. They both quit at the same time.

Friday, December 4th, 2009 AT 5:25 PM

2 Replies

BLUELIGHTNIN6

MECHANIC
16,542 POSTS

Just because nothing rattles inside the relay doesn't mean it still works....you will need to test them correctly to see if they are carrying the currents. if they do test good then the switch is your culprit. THese guides and the headlight wiring diagrams below should help us fix it.

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

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

I have also included the headlight wiring diagrams so you can see how the system works. Check out the diagrams (Below). Please let us know what you find.

Images (Click to make bigger)

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Friday, December 4th, 2009 AT 8:12 PM

KIRTCELL

MEMBER
1 POST

I have the same problem (happened two days ago) and I have about the same mileage. It shouldn't be the relays since they each control one bulb. I expect it's the switch, but I needed to check it for continuity so once I did I found out the switch was bad thanks for the wiring diagrams helped me a bunch.

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Sunday, December 6th, 2009 AT 12:52 PM