Help me find the fog light wiring in the BCM

[weezykid]

I have found the all lights mods and similar, but the only thing I would like to achieve is to have the fog lights always on if the headlights are on without disabling the auto high beam function.  After searching through many threads I have never found the fog light location in the BCM, only those trying to keep their low beam lights on with high beams.  FIgured I could jump the wiring with a diode similar to the high low mod so I can keep the fogs ons.  Unless the fog on will trigger off the auto high beam... If so any ideas on how to achieve the fog all at all times with the low beams.  Thank you!

BTW I have diodes out the wazoo as I work on tubes amps and familiar with schematics.

[newdude]

Fogs on disables the auto high beam.

 

BCM doesn't control the lighting anymore, just the switch input.  The lighting control module handles all the lighting.  

[weezykid]

42 minutes ago, newdude said:

Fogs on disables the auto high beam.

 

BCM doesn't control the lighting anymore, just the switch input.  The lighting control module handles all the lighting.  

Damn, I was hoping to find a way around it!  Thank you for the reply!

[davester]

I would suggest going through the pdf's on gmupfitter.com for your truck, and if it's not there a subscription to alldata.com and looking at the wiring diagrams for the fog light circuit.  I expect you could wire something up past the lighting module to make it work like you want, unless it's something like a digital signal to the headlight itself to turn it on/off.

Edited March 3 by davester