Blend Door Calibration Procedure

But i did that and nothing happened at all.

Blend door calibration procedure. Don t touch the hvac controls. Re install the hvac ecas fuse. Try disconnecting the battery for a few minutes. It only applies to the temperature door actuator.

A re calibration may fix you up. Heatertreater offers the ultimate solution to blend door repair. 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. Then turn the key to the on position but don t start.

Basically you re pulling the fuse and turning the key on then reinstalling the fuse to. Access our free reset procedure repair guide for grand caravan 2008 through autozone rewards. The service manual says to it needs to have the key in the run position for 3 minutes. A trouble code may set if the components start to wear and the endpoints drift too far from the pre programmed positions.

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. Before you give up and take it to a dealership try this re calibration procedure from sparky s. 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. 5 if lights continue to flash after 3 minutes manual system or 20 seconds auto system the control unit has detected a failure.

Does a fuse need to pulled battery need to be disconnected or did i not wait long enough. Most of these endpoints are calibrated during the relearn procedure. My question is what is the proper re calibration procedure for the blend door actuator once everything is hooked up. Or remove the hvac ecas fuse for a minimum of 10 seconds.

If your vehicle has manual controls a recalibration is not possible or needed. Once you sign in follow these instructions to access our repair guides. Okay the only recalibration procedure is for a system that has auto controls. Motor calibration procedure for jeep grand cherokee 99 04 heatertreater.

Gmc yukon and chevy tahoe blend door calibration. The hvac control head uses its pre programmed logic and actuator endpoints to position the door correctly. If you happen to have auto controls the temperature door recalibration is performed as usual but the fuse will be labeled rdo batt.