Blend Door Calibration Procedure

Or remove the hvac ecas fuse for a minimum of 10 seconds.

Blend door calibration procedure.

Try disconnecting the battery for a few minutes. The hvac control head uses its pre programmed logic and actuator endpoints to position the door correctly. If your vehicle has manual controls a recalibration is not possible or needed. A re calibration may fix you up.

Does a fuse need to pulled battery need to be disconnected or did i not wait long enough. But i did that and nothing happened at all. Gmc yukon and chevy tahoe blend door calibration. Fix your car s head and a c in as little as an hour and save up to 1493 in replacement parts and labor costs.

Most of these endpoints are calibrated during the relearn procedure. Motor calibration procedure for jeep grand cherokee 99 04 heatertreater. 4 calibration should take about about 2 minutes to complete if you have heater control and about 20 seconds if you have automatic temp control system. Let them do whatever that want to do.

The service manual says to it needs to have the key in the run position for 3 minutes. Okay the only recalibration procedure is for a system that has auto controls. Basically you re pulling the fuse and turning the key on then reinstalling the fuse to. It only applies to the temperature door actuator.

A trouble code may set if the components start to wear and the endpoints drift too far from the pre programmed positions. The blend door diverts the airflow to the defroster vents in the upper dashboard the floor discharge for heat or the center vents for air conditioning. Re install the hvac ecas fuse. If you happen to have auto controls the temperature door recalibration is performed as usual but the fuse will be labeled rdo batt.

Heatertreater offers the ultimate solution to blend door repair. My question is what is the proper re calibration procedure for the blend door actuator once everything is hooked up. Don t touch the hvac controls. Then turn the key to the on position but don t start.

Access our grand caravan 2008 reset procedure repair guide by creating an account or signing into your autozone rewards account. Access our free reset procedure repair guide for grand caravan 2008 through autozone rewards. Before you give up and take it to a dealership try this re calibration procedure from sparky s.