2002 Tahoe Headlight/DRL Problem

Greetings All,

My headlights and DRL's on my 02 Tahoe quit working the other day. High Beams are OK. Foglights are OK.

I swapped the Headlight relay with another and nothing changed. There are several Headlight and DRL related fuses which all looked fine.

Bulbs all look OK but I haven't replaced them.

Any thoughts on the problem or how to continue troubleshooting?

Thanks
Tony

There should be seperate relays for headlights and DRL's. Headlights are operated by the headlight switch and from the body control module. DRL's are operated from the body control module only. If you're having problems with any other lighting your Body Control Module may be suspect. Also would be worthwhile to check the connectors to the module.