Replacement B pillar lights S10 Blazer Wiring Fix

[Salvagedcircuit]

I believe @schardein was one of the first to detail the use of the S10 Blazer lights as replacement MJ B-pillar lights on CC. I purchased a pair from him and a pair of the Euratech lights. The Euratech lights have an inline diode so the lights can work independently. The blazer lights are missing the diodes and both would turn on simultaneously whenever one was switched on. Not ideal. Here's some photos of adding the inline diode for anyone who goes this route. A 1N4004 silicon diode will be more than enough to do the job. The wiring diagram from the Euratech lights is there for reference.

[Pete M]

nice!   

[schardein]

Great work!  I know several people have asked about this in the past.

 

At one time I was looking at using a GM diode that fits a mini fuse holder.  Then wire a mini fuse holder inline.  This way it would be easily replaceable in case it ever failed.  The elegant way to do it would be to splice the wire at the light end, and find a new terminal that fits the factory Blazer connector at the other end, and crimp on the new terminal (assuming the installer cuts out the factory connector, and splices in the Blazer connector, which is what I did).  But that was as far as my planning got.  GM diode like this:  https://www.waytekwire.com/product/littelfuse-02400104p-1a-mini-diode?gad_source=1&gbraid=0AAAAADzbIvYbTNc55VZETRQk2_yZQUhjB&gclid=EAIaIQobChMIjd-J4NzwhwMV4Ef_AR3iLQscEAQYASABEgIquvD_BwE

 

Just some thoughts, and certainly not to take anything away from your work, but the lights working together was never an issue for me.  I find that if I want one light on, having both on is just as good, or better.  I also find that I always use the headlight switch knob to turn on the lights, and not the switch on the light itself.

 

If I understand the circuit correctly, neither this setup nor the factory setup allow you to fully disable the B pillar lights, do you know if that is correct?  For example, my newer Silverado has a rocker switch in the overhead console that disables the dome lights so they don't come on when you open the door.  Neat feature that caused me some wasted time figuring out what was "wrong" when someone switched it without me knowing .