I have another thread out there regarding the Siemens VDO blower: https://www.chevelles.com/forums/showthread.php?t=226353
and have a problem which may or may not be related.
I installed a new M&H A/C harness days before the blower install. Cut the old purple/power & black/ground wires to the blower motor and left the 2 new ones there for the shop to connect to the new blower. (It took them some 2-3 hours to get the Siemens installed BTW.) Told shop to transfer ground spade from old blower and reattach with a star washer. Also grounded A/C relay to firewall using new star washer.
So I get the car back, turn on the key and no blower speeds. I think
I heard a muffled winding down of the 'new' blower, then nothing. No smoke or electrical smells either. I thought wait a minute, that can't be right since the 30A inline power fuse is not installed. Sure enough, it was missing. Once installed, still nothing. BTW: I did install a new horn relay (the horns work) as well as a new M&H horn-to-A/C relay wire, so it is all new material.
The power to the horn is good, new wire, new fuse, but I don't hear the relay clicking at any of the fan speeds. Should it be clicking? Can I quickly test the relay on the car with a digital multi-tester? The blower did work prior to these updates (is that the right word?). I wanted to change the blower due to squeaking at low speeds.
Other thing I notice is in the fuse block. In the upper right-hand corner is a blown 25A fuse called A/C TCS
. Is this part of the equation here? I have removed my TCS relay and cut/capped the Dark Blue & Black w/ Pink Tracer wires in the engine harness that lead to the starter solenoid, so no wires grounding-out. The green TCS wire to the temp sender unit is completely removed. Tranny TCS is still there with wiring that leads to, I believe, the Dark Blue wire I cut, so I don't see an active circuit.
1.) So why is this A/C TCS fuse popping in the first place?
2.) Is this fuse even related to the blower motor function?
Trying to give out as much detail as possible before I fall asleep