Yes I agree and use my Fluke every day servicing commercial HVAC equipment.
A jumper is essential as well to bypass components that may be a problem.
I'll get back on this soon and post back my findings.
Again I appreciate your assistance.

I haven't checked that yet I've got to remove the dash panel again.
This is were my thinking was to jump across there to take the damper position out of the equation.

Red/Black which starts at the 40amp fuse.

Been there done that on both former and latter. Blower runs if I jump red/black to orange at the resistor block. Do you have a diagram of the 8 pin connector at the hvac control module ? Additionally there's a jumper I circled in red that connects the electric to the vacuum assembly at the HVAC cont...

Screenshot_20240826-012755~2.png Sorry for the delay MMJ I didn't receive any notifications on this. I have no blower motor in any switch positions. I believe my 07 has an electric selector ( damper position ) where as this 04 has vacuum. How does it transition from a orange electric wire to a vacu...

04 Chevy Express 1500

Can someone please assist me with a blower motor electrical diagram.
Specifically the Orange wire from the resistor block.
I assume it goes to the HVAC control module.
Thanks in Advance