i am replacing one front and 2 rear door blend actuators what do i need to do. on 2004 GMC Envoy

from what i heard i need to do a procedure to re calibrate the car computer

by in Belvidere, IL on July 13, 2013
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1 answer
ANSWER by , July 13, 2013
Alternate Method (w/o Scan Tool) Clear all DTCs. Place the ignition switch to the OFF position. Install the HVAC actuator. Connect all previously disconnected components. Remove the HVAC B fuse for a minimum of 10 seconds. Install the HVAC B fuse. Start the vehicle. Wait 40 seconds for the HVAC control module to self-calibrate. Verify that no DTCs have set as current DTCs. hope this helps