JCODOHERTY
Member
The YukonXL has been out to pasture last couple years after using it for a cross country trip. I've been going through everything for a couple weeks now to make it road worthy again.The DRLs stopped working some years ago. The right socket burned out years ago and was replaced once. I replaced with new sockets, new 4114LL bulbs. And new correct head lamp bulbs throughout. Also swapped out the high mount tail lamp and replaced pairs of tail lamp bulbs as well. Also replaced the ambient light sensor. Replaced some fuses. Cleaned connections. Etc. Here's whats strange: I can't get the DRLs to come on and the head lamps come on instead. In gear, parking brake off, switch on. Just head lamps. I swapped out relays, no change. Here's the other thing: The 3157 amber indicators now alternate flash with the corner lamp reflectors. I don't recall that as a thing. Maybe I'm getting older and haven't used this truck regularly since 2019.
Fog lamps are fine (new 880 bulbs from Vosla) and all other lighting is doing fine.
I'm thinking it's the diode for the DRLs? Any thoughts on this would be appreciated. Around five years ago the left DRL finally quit and I just left both charred sockets in place with popped bulbs.
Fog lamps are fine (new 880 bulbs from Vosla) and all other lighting is doing fine.
I'm thinking it's the diode for the DRLs? Any thoughts on this would be appreciated. Around five years ago the left DRL finally quit and I just left both charred sockets in place with popped bulbs.