Did you perform the HVAC Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With a scan tool, perform Recalibrate all Motors in instrument panel module Special Function/Miscellaneous Tests.
4. Select display DTC function in instrument panel module.

Does the scan tool display any DTCs?

Go to DTC Table

Go to Step 3

Inspect for a poor battery condition. Refer to Battery Inspection/Test in Engine Electrical.

Did you find and correct the condition?

Go to Step 6

Go to Step 4

Visually inspect for a stuck or intermittent sticking switch on the control head (Trim plate fit).

Did you find and correct the condition?

Go to Step 6

Go to Step 5

1. Start the engine.
2. Verify all the instrument panel outlets are open.
3. Operate the system. Refer to the appropriate procedure:

•	Dual Zone Air Conditioning (A/C) System Description

•	Operating Modes

•	Purge Mode Description

•	Control Assembly Description

Does the system operate properly?

System OK

Go to Symptoms

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2