2001 4x4 XLT 5.4
Rear hvac controls on roof are inoperative. When the AC is switched on at the dash control, the rear blower turns on high and does not respond to the roof fan speed knob. Also, neither the temp blend nor the floor/roof vent actuators move when the knobs are turned. I removed the actuators and can move the doors easily with a screwdriver. If I unplug the connector from the actuator (either one will do this) and then plug it back in, it will turn the shaft then stop, so the actuators seem functional. I'm thinking it might be the module/card mounted above the blower housing. Does that module control these functions? The number on the module is F75H1AB
Rear hvac controls on roof are inoperative. When the AC is switched on at the dash control, the rear blower turns on high and does not respond to the roof fan speed knob. Also, neither the temp blend nor the floor/roof vent actuators move when the knobs are turned. I removed the actuators and can move the doors easily with a screwdriver. If I unplug the connector from the actuator (either one will do this) and then plug it back in, it will turn the shaft then stop, so the actuators seem functional. I'm thinking it might be the module/card mounted above the blower housing. Does that module control these functions? The number on the module is F75H1AB
