Passenger Van Rear Blower Motor Does Not Operate at Low Speed

Passenger Van Rear Blower Motor Does Not Operate At Low Speed Only When Controlled From The Front Auxiliary HVAC Control Module:

Passenger Van Rear Blower Motor Does Not Operate At Low Speed Only When Controlled From The Rear Auxiliary HVAC Control Module:

Passenger Van Rear Blower Motor Does Not Operate At Low Speed Only When Operated From Either The Front Or The Rear Auxiliary HVAC Control Module: