Update
When blower motor is disconnected and car engine running available voltage is 13.6 to 13.9 across all fan settings amperage unknown.
With blower motor connected and engine running 3 V across all fan settings.
Bench tested blower motor with 12v quick on and off ran extremely fast.
Would this indicate faulty blower motor regulator?
With Key on and blower motor disconnected 12.6 V at blower motor leads.
Battery is new.


Auxillary fans.....with key on jumped across leads at blue sensor/switch on thermostat. fans came on high... Is this correct?

With key on jumped across red sensor at receiver fans came on low.....correct?