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Diagnostic Manual, Climate Control, Volume 1

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LOCATION:    3.6 Air Conditioning (A/C)    >   13 Diagnosis - Individual Flap Test (via A/C Pushbutton Control Module [N22])


Diagnosis - Individual Flap Test (via A/C Pushbutton Control Module [N22])



1. The display window in the A/C pushbutton control module (N22) will show the test step. Pressing the various buttons will activate the individual vacuum actuators. The LED on the depressed button lights up.

2. The temperature control is maintained during the duration of the test.
 
    P83.40-0304-01

Preparation for Test

1. Review 11 , 12 , 13 , 14 , 15 , 21 , 22 , 23 , 31 ,
32 , 41

2. Engine: At Idle

3. Press left and right buttons.

4. Set temperature selector to °F.

5. Manually open the side and middle air vents

6. Press and for > 5 secs.

7. The left display will show " and the right will show

8. By pressing left , the next highest test step is displayed. To switch from " " to " " press right (see table).

9. Press to end test program.

Note:
Two stage vacuum actuators function at full stroke (100%) only, if the long stroke (80%) and the short stroke (20%) are pressed.

Pressing the short stroke (20%) by itself does not change the flap position.

The blower moter will operate on 6 V during the test.


Diagnostic Trouble Code (DTC) Activated flap 3) Test condition Right display Nominal value/Air output Test step/Remedy 1)
All Press right

Flaps closed (air to windshield).

All flaps opened (no air to windshield).
33 /2, 33/3
Left diverter flap 1) Press right

Left center outlet closed.

Left center outlet opened.
33 /2, 33/3
Right diverter flap 1) Press right

Right center outlet closed.

Right center outlet opened.
33 /2
Left blend air flap 1) Press right

Left center outlet closed.

Left center outlet opened (heated air).
33 /3
Right blend air flap 1) Press right

Right center outlet closed.

Right center outlet opened (heated air).
33 /3
Left defroster flap long stroke 2) Press right

Side defroster leak air.

Side defroster maximum air.
33 /3
Left defroster flap long and short stroke 2) Press right

Left defroster outlet closed.

Left defroster outlet opened.
32 /2
Right defroster flap long stroke 3) Press right

Right defroster outlet opened, leak air.

Right defroster outlet opened.
33 /2
Right defroster flap, long and short stroke 3)
Press right

Right defroster flap closed.

Right defroster flap opened.
33 /2
Main air flap long stroke 4) Press right

Fresh air.

Recirculated air 80%.
33 /2
Main air flap long and short stroke 4) Press right

Fresh air.

Recirculated air 100%.
33 /4
Left footwell flap, long stroke 1) Pushbutton right

Left footwell flap, closed.

Left footwell flap opened, leak air
33 /1
Left footwell flap, long and short stroke 1) Pushbutton right

Left footwell flap, leak air.

Left footwell flap, opened.
33 /2
Right footwell flap, long stroke 1) Pushbutton right

Right footwell flap, closed.

Right footwell flap opened, leak air
33 /2
Right footwell flap, long and short stroke 1) Pushbutton right

Right footwell flap, leak air.

Right footwell flap, opened.
33 /2
All flaps Pushbutton right

All flaps closed.

All flaps opened.
33 /2
1) The left and right defroster outlets will also be activated (long and short stroke).
2) The right defroster outlet will also be activated (long and short stroke).
3) The left defroster flap will also be activated (long and short stroke).
4) The left and right blend air flaps will also be activated.