However other popular gm models have the same issue.
Blend door calibration procedure international.
The rear defrost light flashes when the van is started and it is still blowing hot all the time.
After reassembling the door and actuator and reconnecting the actuator connector initiate the door position calibration procedure.
There are 2 ways to initiate temperature actuator calibration.
Most of these endpoints are calibrated during the relearn procedure.
Remove the fuse and wait 1 2 minutes for any capacitive charges in the system to dissipate.
The procedure is below for the calibration.
I just replaced the passenger blend door actuator in my van.
If your vehicle has manual controls a recalibration is not possible or needed.
The hvac control head uses its pre programmed logic and actuator endpoints to position the door correctly.
Turn ignition key to the on position and turn on the hvac system.
Temperature control and blend door problems on the gmc acadia and the chevrolet traverse.
I need to calibrate the manual temperature control.
Blend door actuator motor calibration.
A trouble code may set if the components start to wear and the endpoints drift too far from the pre programmed positions.
Move the key to the off position.
This page concentrates on general motors corp.
Press and hold the hot and cold buttons digital controls only for approximately 3 seconds.
We ll also cover replacement tips and the important calibration process common across the general motors line up.
Roy actuator calibration test 1.
Okay the only recalibration procedure is for a system that has auto controls.
Open hood bonnet for the rhd guys and locate fuse 15 in the fuse box next to the battery.