Once you sign in follow these instructions to access our repair guides.
Blend door calibration procedure.
Fixes problems with heating and ac control please visit our website.
If you happen to have auto controls the temperature door recalibration is performed as usual but the fuse will be labeled rdo batt.
Don t touch the hvac controls.
Basically you re pulling the fuse and turning the key on then reinstalling the fuse to.
Most of these endpoints are calibrated during the relearn procedure.
It only applies to the temperature door actuator.
If your vehicle has manual controls a recalibration is not possible or needed.
My question is what is the proper re calibration procedure for the blend door actuator once everything is hooked up.
Heatertreater offers the ultimate solution to blend door repair.
A re calibration may fix you up.
The hvac control head uses its pre programmed logic and actuator endpoints to position the door correctly.
Let them do whatever that want to do.
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.
Re install the hvac ecas fuse.
Or remove the hvac ecas fuse for a minimum of 10 seconds.
But i did that and nothing happened at all.
5 if lights continue to flash after 3 minutes manual system or 20 seconds auto system the control unit has detected a failure.
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.
Before you give up and take it to a dealership try this re calibration procedure from sparky s.
Access our grand caravan 2008 reset procedure repair guide by creating an account or signing into your autozone rewards account.
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.
Gmc yukon and chevy tahoe blend door calibration.
Does a fuse need to pulled battery need to be disconnected or did i not wait long enough.
A trouble code may set if the components start to wear and the endpoints drift too far from the pre programmed positions.
Try disconnecting the battery for a few minutes.
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.
