Anyone know where a person could get a climate control vacuum diagram/schematic for a 2002 Caravan?

 

Is it single,dual,tri zone HVAC system and what exactly are you looking to dig and fix??
all the actuators are electric,and there is a few diffrent modules depending on what system you have.

The blend door actuator is a reversible, 12-volt Direct Current (DC), servo motor (Blend Door Actuator). The single blend door actuator is located on the outboard side of the rear heater-A/C unit housing, below the mode door actuator. The blend door actuator is mechanically connected to the blend air door. The blend door actuator is interchangeable with the actuator for the mode door. Each actuator is contained within an identical black molded plastic housing with an integral wire connector receptacle. Two integral mounting tabs allow the actuator to be secured with two screws to the rear heater-A/C unit housing. Each actuator also has an identical output shaft with splines that connects it to the pivot or linkage of the proper door. The blend door actuator does not require mechanical indexing to the blend air door pivot, as it is electronically calibrated by the front heater-A/C control module. The blend door actuator cannot be adjusted or repaired and, if damaged or faulty, it must be replaced.


and after a repair a recal must be done info below
STANDARD PROCEDURE - HEATER-A/C CONTROL CALIBRATION
The heater-A/C control module must be recalibrated each time an actuator motor or the control module is replaced. If the vehicle is so equipped, the calibration procedure also includes rear HVAC positions for each actuator motor.

Turn the ignition switch to the On position.
Simultaneously depress and hold the Power and Recirculation buttons on the heater-A/C control for at least five seconds. The manual heater-A/C control power Light Emitting Diode (LED) and Recirculation LED, or the Automatic Temperature Control (ATC) heater-A/C control Delay and Recirculation graphics will begin to flash when the calibration procedure has begun.
The calibration procedure should take less than two minutes to complete for the manual heater-A/C control, and less than twenty seconds for the ATC heater-A/C control. When the LEDs or graphics stop flashing, the calibration procedure is complete.
If the LEDs or graphics continue to flash beyond the normal three minute (manual) or twenty second (ATC) calibration time, it indicates that the heater-A/C control has detected a failure and a Diagnostic Trouble Code (DTC) has been set. Use a DRBIIIŽ scan tool to perform further diagnosis. Refer to the appropriate diagnostic information. The LEDs or graphics will continue to flash even after the ignition switch is cycled Off and On, until a successful calibration is completed or until the vehicle has been driven about 13 kilometers (8 miles).

 

I am at a loss. There is no air blowing into the passenger cabin in either heating or cooling mode.

The fan is definitely working, you can hear it, but it does not push air into the cabin.

The AC is working - at highway speeds with the AC on you can feel conditioned air coming out (not blown out, just kind of leaking out).

The actuator motors for recirculator is working. The actuator motors for the cooling to heat is working as is the actuator for the blend door(s).

I cannot tell whether the doors are working (inside the air box), but I can manually move the door actuator (with the actuator motor removed) and they all move, but again, I cannot tell if the doors are actually flipping inside.

So - all the electronic components seem to be working and yet the air which is being generated by the fan is not flowing into the cabin.

Any thoughts? Could it be a jammed blend door? Are there other flaps and doors that could prevent the air from being blown out? Other tests that can be done?

Losing hope and looking for any help!!

Thanks