Yes, can confirm you have ECC (Electronic Climate Control). The power stage is not a relay, it's digital, wont show on a multimeter, you'll need an oscilloscope. Unfortunately without seeing it I'm not gonna be much use as I am ****e at explaining things.
Where are you getting 9v from? The motor spins at 12v. The +ve terminal is permanently hot, you can run the motor by grounding the blue wire.
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