Question about 2000 Buick LeSabre
Air only comes out on the floor no matter what is selected at the HVAC dash control. I checked the voltage at the mode door actuator module and I get 12v. at the wire comming from the HVAC10A fuse, Battery negative on one of the wires, and on the third wire the voltage changes depending on what is selected at the dash control. I changed the mode door actuator and now it blows out the defrost and no where else. Can someone tell me what the voltage signals are supposed to be for the different control selections- vent , heat, defrost etc. What could the problem be?
They have two types of air conditiong controls. AUTOMATIC & MANUAL . Your mode switch maybe bad if manual. If automatic the head is probably bad and they are sold as exchanged units only. If manual check all circuits to see if 12 volts has continuity
Posted on May 24, 2009
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Posted on Jan 02, 2017
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