Questions & Answers for: Buick Roadmaster hvac control

...control unit on the dash. When the car is stopped,.such as at a traffic light, the HVAC controls again function normally, accepting manual inputs and permitting the compressor to operate. As soon as ...

...be located either under the dash near the blower motor, on the firewall near the blower, or on the hvac ...

...check. I tried using new blower, alternate relate. need to trace wires maybe? Cars with "automatic" HVAC have an electronic controller for the fan. It will be located on the engine side of the duct ...

...wire on mine) that also goes up under the dash, and splices to several bulbs-on the radio, on the HVAC controller, on the ashtray light, also one to the under hood lamp, and then one to the ...