1994 chrysler a/c heater control does not flip vent flaps

are you trying to get heater working or A/C or just heater + defrost mode ( no whether there told)
well the HVAC is failing
it needs service.
the service manual covers this chapter HVAC.
The vent actuators can fail all these way.
fuses all good.
motor blower does spin fast, does it hear and felt on one of many vents. in recirc mode is best.
if blower is dead , or silent the blower on HIGH (is it)
on high the resistor block is BYPASSed.
the blower resistor block is bad or blower dead.
next mode motors (actuators)
causes aplenty
1: fuses blown. easy 20cent fix. fuse 17?
2: damper shaft jammed. (we hand turn it ,proved)
3: motor on shaft dead bad. (mode dead?)
4: controls to motor dampers bad.


1997
Mode control motor
Recirculation control motor
and blend motor, all; air mixture motor

the control panel as 5 switches for mode.
and 5 wires and 1 ground
we'd test all 5 modes to be sure the motor went to all 5 modes (eyes on motor)
if not, we'd turn pull mode motor make sure the modes an all be tuned by hand.
then if yes a news motor is needed.
the logic for the controller only shows each 5 grounds the line for proper mode.
the LED there can lie due to each mode switch has 2 switches for each mode. 10 total.
if some modes work , the ground is good.g402

You just THINK the flaps are working, but apparently the top vent is not. These multiple flaps are controlled by vacuum and you have a line off to that particular flap. This means the flap won't open and the vacuum leak, whether you can hear it or not, is making you lose MPG also, though slight. The vacuum line could be cracked or disconnected from the flap or at the vacuum block on the back of the lever unit.

Hi there:
Are you scanned the PCM and have fault codes noted? Need description fault codes? Send us the specific fault codes that you find there.

Check the blend door cable for proper attachment to the control panel and to the blend door. Try opening the door manually to see the you can get hot air out. If not, the door may be broken inside the heater box. If yes, correct/adjust the cable attachment for proper operation.

REMOVAL & INSTALLATION
1990-97 Passat Models
Install the cable ends marked with a white or blue band to the control head assembly. The cables must be attached to the control head before connection to the system air flaps.

1. Remove the climate control head from the center dash assembly to access the control head cable ends.
2. Remove the lower dash panels as necessary to access the cable lever arms.
3. Attach the airflow distribution cable (cable 2) to the airflow distribution knob's lower control lever.

This cable can be identified as follows:
Operates the mode/central air flap Cable has a black sleeve and is 25.0 inches (634 mm) long Cable is marked with a white band

1. Press the cable's sleeve against the control head stop and install the retaining clip.
2. Attach the temperature control/air blend cable (cable 3) to the air temperature knob's control lever.

This cable can be identified as follows:

Operates the temperature control/air blend cable air flap Cable has a blue sleeve and is 21.0 inches (535 mm) long Cable is marked with a white band

1. Press the cable's sleeve against the control head stop and install the retaining clip.
2. Attach the airflow distribution cable (cable 1) to the airflow distribution knob's upper control lever.

This cable can be identified as follows:


Operates the footwell/defroster air flap Cable has a black sleeve and is 37.5 inches (954 mm) long Cable is marked with a blue band

1. Install the cable such that the blue band is over the retaining clip mount and install the retaining clip directly over the blue band.
2. Install the climate control head.
3. Set the air flow distribution knob to defrost.
4. Connect the longest airflow cable (cable 1) to the footwell/defroster flap lever on the heater's air box.
5. Press and hold the flap's lever toward the retaining clamp perch and install the cable retaining clip.
6. Set the airflow distribution knob to the Vent position.
7. Connect the short airflow cable (cable 2) to the central/mode flap's lever.
8. Pull and hold the mode flap's lever away from the retaining clamp perch and install the cable retaining clip. Check the operation of both air flaps making sure they can be heard contacting their stops.
9. Set the temperature control knob to full cold.
10. Connect the blue-sleeved cable (cable 3) to the air blend/temperature flap's lever.
11. Pull and hold the mode flap's lever away from the retaining clamp perch and install the cable retaining clip. Check the operation of the air blend/temperature flap making sure it can be heard contacting the stops.

Fig. Side view of the control head and cable location. 1. Footwell/defrost flap cable-2. Air distribution cable-3. Temperature control flap cable

Fig. Temperature flap cable location and adjustment

The LH models (LHS, Concorde, New Yorker, Intrepid, Vision) do have self-diagnostic capability with the standard type heater controls. I don't know about the Sebring heater controls (my '95 manual doesn't mention it) but if you have the various controlknobs/buttons that I will describe you could give it a try.
There is a rear window defogger that is initiated by a push button with an LED light. That light is the readout, by its blinking. To begin the diagnostic mode, run the vehicle at idle with the controls set as follows: the blower speed knob should be on any position other than OFF, the temperature knob should be set in full COOL, and the mode knob should be set on Defrost mode.
To enter the diagnostic mode, press the defogger switch in for five seconds, until it begins to blink, then release it. It will continue to blink for about 30 seconds while it calibrates. If it goes out, the calibration is OK and you can skip 3 paragraphs to "Position...mix mode" below.
If the light stayed on, switch the mode knob to the MIX (defroster-floor) position. If the light stays on there is a problem with the control head unit.
Switch the mode knob to the FLOOR position, if the light stays on, it indicates a problem in the blend door or the blend door actuator wiring.
Move the knob to the Bi-level (panel-floor) position where a continuous light indicates a problem with mode actuator or circuit.
Position the knob in the MIX mode. The LED light should now flash twice then pause, and continue a two-flash sequence, indicating that the MIX mode is OK.
In the FLOOR mode the light should flash three times, meaning that the FLOOR mode is OK.
In the Bi-Level Mode, a four-flash sequence indicates that mode is OK.
In the PANEL mode the light should flash 5 times to indicate no problems there, and in the recirc-panel mode 6 times and seven times in the recirc Bi-level mode.
The temperature control can be checked by switching the mode knob to Defrost and rotating the temperture knob. If the temperature contol is OK, the light will flash faster the more you turn the temperature knob up, until the light goes out at the hottest setting.
Switch the knob between Panel and Recirc-Panel and watch the recirc door (unit under the dash). Proper operation means that circuit and components are OK.
To get out of the self-diagnostic mode, turn off the blower or push the air conditioning button once.
If this doesn't seem to apply to your control head or you get no response from an LED light for the rear defroster, then the Sebring may not have this capability. Please let me know your results if any

The van may have cable or vacuum control for the vent flaps.
Check if the defroster,vent controls are working
If they are,your vacuum lines are good,or your cables are good
Switch from cold to hot.listen for the flap moving(most likely under dash to right of drivers
foot)
Look to see if the heater core had been bypassed(if bought used)
If the flap for cold/hot is not working ,look under dash at center console
try to flip lever manually

Check for vacum at the heater control ports behind the dash and for vacum leaks. For safty reasons the
system is designed to go to defrost mode in case you lose vacum to the system. Hope this helps.

I have a 1500 chevy picup that did the same thing the control panel (blower, temp, and selector) is what was the problem with mine replaced that and fixed it. Very easy to chg.front of dash pops off control panel pops out 1 plug ( yours may have 2 plugs)
pop back in and your done.

Pull the AC control in the dash and verify that there is vacuum going to it, all the different air diversion doors are operated by seperate vacuum motors controlled by the ac control head in the dash, as you switch it it sends vacuum to the correct location to work that door for the desired air outlet, dash, floor etc..