How do you test a control board?
How do you test a control board? Place your meter probe on the circuit directly after the first resistor. Set your volt meter to the "resistance" setting. Power the board and make a note of the reading. The meter will signal a zero reading if the resistor has shorted or is not connected. Where can I get a new blower motor resistor? I replaced the blower motor resistor and the control unit with new parts from rockauto (ACDelco). I've checked the fuse in the dash fuse panel and it is good. When to replace a heater blower motor switch or...