Lost all speeds on blower motor last week. Checked motor good. Input to pin b on module is 5 volts for off and 0 volts for high, varying in between. Control voltage comes from HVAC Module pin B9 a grey w/black tracer wire. Module is held in by plastic rivets near fire wall under glove box. I pried it out with a large flat blade screwdriver causing rivets to snap. Screw it back in with metal screws through extra holes and mounts.
