1993 Ford Thunderbird Repair Question
Topics covered: Blower motor, Heater, Wheel.
Mileage: No information provided.
Mileage: No information provided.
Asked on April 6, 2008
1993 Ford Thunderbird blower stuck on high
all functions of heat/ac work correctly but blower stuck on high. Replaced ECC unit in dash, replaced blower relay mounted under blower, also pulled plug on blower to check for internal short, blower is working correctly. My wiring diagram only shows systems using the rotary blower speed switch, not the ECC setup my car has. Any ideas would be appreciated
Asked by StoopidAnswer
Replied on April 7, 2008
You forgot the AC/Heater blower motor resistor this one controls the speed of the blower motor by dropping resistances or increasing it test it out see below
Replied on April 7, 2008
thanks for your reply, the blower relay that I replaced is also called the blower resistor. It has been replaced with a new one from Ford....
Replied on April 7, 2008
I've verified it-its the same thing-Check the EATC Module. All the wires at the resistor other than the orange and red wire which is the power input to the motor and black wire to ground are coming from the EATC Module-