Intermittent DRL's not working

ACOLIN13

MEMBER
2000 CHEVROLET S-10
2.2L
4 CYL
2WD
AUTOMATIC
138,000 MILES

I have a question the Daytime Running Lights on my truck do not come on when I turn on the truck. They were working fine before but suddenly they stopped working. Sometimes I turn the truck off and then on and then they come on so sometimes they work sometimes they don’t.

4 Replies

JACOBANDNICKOLAS

MECHANIC
109,700 POSTS

Hi,

Since at times they work, it isn't a fuse issue unless it is loose or corroded. So, that leads me to the relay. There is a DRL relay in the under hood fuse box. Check to make sure it is tight and there isn't a corrosion issue where it plugs into the box. If you have a different relay in the fuse box with the same part number, switch them to see if the makes them work correctly. If there isn't one with the same part number. here is a link that explains how to test a relay:

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

I attached a picture below of the relay's location and highlighted it.

Let me know if this helps or if you have other questions.

Take care,
Joe

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Tuesday, May 5th, 2020 AT 8:59 AM

ACOLIN13

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3 POSTS

I will try that, thanks. I will update on the situation.

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Tuesday, May 5th, 2020 AT 9:37 AM

ACOLIN13

MEMBER
3 POSTS

So today I went ahead and turned on the truck (the DRL's did not come on) I checked the fuse box located the DRL relay and I wiggled it trying to remove it then I noticed the lights came on.

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Tuesday, May 5th, 2020 AT 5:51 PM

JACOBANDNICKOLAS