Afterblow Module Install Questions

[nick0789]

I ordered the AC Delco afterblow module to help with my moldy AC condenser issue, and had some electrical questions. Looking at the wiring diagram, it seems straight forward but I do not have enough electrical experience with GM products (Jeep is another thing…) so I want to make sure I’m getting everything in order before chopping wires.

From what I see…
Black: find a good ground at the end
Red: tap into a 12V source — any good options that supply 12V constantly?
Green: cut ground wire from blower motor wiring connection (it’s the black one, correct?) and tap with the green wire
Yellow and Blue: cut the hot wire from the blower wiring connection and tap / bridge(?) with the appropriate color in the right place. The burgundy/purple wire is hot, correct?
Am I missing anything obvious here?

 

[ivin74]

I was not aware that there was such a module, I sold my silverado several years ago because I could not get rid of the musty smell. It would be great if you share the install procedure with us afterwards. Good luck with the install

 

[Tonyrodz]

I never knew this was even an option.

 

[Rocket Man]

I just learned about this a couple weeks ago. Kinda cool.

 

[nick0789]

Consolidating two threads into one since this is more of an interior question IMO. See the following for additional work:

Afterblow / Electronic Evap Dryer module install

With the summer temps brings back the dreaded “musty AC” in my 2005 tahoe. After reading, I found I can do a cabin air filter retrofit. I got the hole cut out and am just waiting for the filter and panel to arrive so I figured I’d ask about afterblow now. I also ordered the afterblow module but...

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