Hvac Blend Door Actuator Reset

The dealership has a handheld scan tool that connects to the climate control systems to reset the actuator limits.

Hvac blend door actuator reset.

Tips for replacing the automotive hvac actuators. If there is still a problem the actuator for the temp blend door may have failed. It can also screw up where the air blows. A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit.

For manual systems it does not matter where the a c controls are set but if you feel the need to do something turn the blower switch on i prefer speed 3 and set the temperature. Open hood bonnet for the rhd guys and locate fuse 15 in the fuse box next to the battery. If you would like to leave a donation here is a link. If the motors get out of synchronization the control head doesn t know where they are.

Move the key to the off position. First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or. Turn ignition key to the on position and turn on the hvac system. An actuator can go bad in of two ways.

That can result in cold air when you command heat and vice versa. Ignition off pull the hvac ecas fuse for 10 seconds reinstall and start vehicle without touching any controls wait 40 seconds for the control module to self calibrate. On the gmc acadia and the chevrolet traverse the replacement part number for the blend door actuator is 15 73989. The topic of how to perform the actuator recalibration procedure on chevrolet gmc and cadillac trucks and suvs has become an ever increasing topic of discussion.

The blend and mode doors on late model chrysler vehicles are driven by dc servo motors.