Verify the customer's complaint.

Are the customer's concerns verified?

Go to Step 2

System OK

Move all controls except for the temperature adjustment.

Is an excessive effort required to move the controls?

Go to Step 15

Go to Step 3

Move the temperature control.

Is an excessive effort required to move the controls?

Go to Step 6

Go to Step 4

Move the temperature control.

Does the temperature door move too easily?

Go to Step 5

System OK

Remove the cable from the controller.

Does the control knob turn freely.

Go to Step 15

Go to Step 14

Inspect the cables for:

Is there a problem with the cable?

Go to Step 7

Go to Step 8

Repair as needed.

Is the repair complete?

System OK

--

1. Remove the cable from the temperature door.
2. Cycle the door manually.
3. Inspect for door binding.

Is there any door binding?

Go to Step 9

Go to Step 12

Inspect a binding door seal for proper installation.

Is the door seal installed properly?

Go to Step 10

Go to Step 11

1. Inspect a binding door for the following conditions:

•	Shaft alignment

•	A bent shaft

•	A bent door

•	A warped case

2. Repair as needed.

Did you complete the repair?

System OK

--

Repair the door seal, as needed.

Did you complete the repair?

System OK

--

Inspect for control binding.

Does the control bind?

Go to Step 14

Go to Step 13

1. Reinstall the cable to the door.
2. Inspect the clearance for the cable-to-dash components.
3. Repair any interference.

Did you complete the repair?

System OK

--

1. Remove the cable from the control.
2. Inspect the control for binding.

Does the control bind?

Go to Step 15

Go to Step 16

Replace the control.

Did you complete the replacement?

System OK

--

Replace the cable.

Did you complete the replacement?

System OK

--