1998 Blazer (non-ZR2)
Already disabled the DRLs by removing the diode in the relay center under the hood.
Doing the quad headlight mod (with relays), plenty of info on the board on how to do this.
But in reading these threads, the factory fog lights still shut off. I'd like them to stay on as well, but no one seems to address the issue that I've seen. Maybe I'm not searching the right terms... If this has been addressed please point me in the direction of where.
Anyway, looking for some help on this. Whether it be wiring up one more relay, or modding it somehow so that the fog lights always work even if the lights aren't on... whatever it may be.

 

You already got it. Relay for the fogs, and pit another diode from the high beam to the fog relay. Easy as pie. My problem on my 97 is that my high beam indicator is always on when the headlights are, low and high beam.

 

Pretty sure the bcm will wig out.
But I think I've figured it out. Need another relay and a momentary latch circuit (fog switch is momentary, not a spst).

 

I want them to work completely independent of the headlight switch.

 

To address you H.B. indicator light, how do you have your relays wired?

 

Its how I did it, and worked fine for me for about 3 years now, but mines a 97.
The high beam thing just recently happened after I rebuilt my harness, which, was the exact same set up that I had with the last harness, which is why I'm so confused.
Its set up just like any other headlight relay, 30 is battery pos, 86 is ground, 85 is the input signal, and 87 is the output. All my lighting relays are the same, with a 1n4004 from the HB relay to the LB and fog relays. Same set up that I've had for about 3 years, then, when I redid it in February the exact same way, just cleaned it up. Everything installed, hopped in it, and saw that the HB indicator was on whenever the headlight are. I'm sure its something stupid, I've just gotta figure it out :P

 

Check out my new thread.