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2005 Buick Rainier Question: my a/c only blows on defrost and feet



, Elkhart, IN, June 09, 2012, 14:33

replaced the blend door actuator it still does the same thing

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  • Answer #1

    Greg's Orange Auto (15380 Answers) , Orange, CA - (714) 361-9386
    globalhelper June 09, 2012, 20:12

    can you read codes on access a scanner to test each component. if so do that as not to guess

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  • Medium-star Best Answer
    June 10, 2012, 02:04

    Customer Concern:
    The Heating, Ventilation and Air Conditioning (HVAC) system is putting air out at the floor and defrost only and will not change. The problem started after having the battery disconnected for other engine work.

    Alternate method (w/o scan tool).

    1. Clear all DTCs.

    2. Turn the ignition switch to the OFF position.

    3. Connect all previously disconnected components.

    4. Remove the "HVAC B" fuse for a minimum of 10 seconds.

    5. Install the "HVAC B" fuse.

    6. Start the vehicle. Do NOT change any value on the HVAC Control Module.

    7. Wait 40 seconds for the HVAC control module to self-calibrate.

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