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

Was the customer complaint in A/C mode operation?

Go to Cooling Insufficient - Air Conditioning (A/C) System

Go to Step 4

Does the customer need to change the set temperature frequently to maintain comfort?

Go to Set Temperature Requires Frequent Adjustment

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?

Go to Step 6

Go to Symptoms

1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. With a scan tool, adjust the Temperature Offset in instrument panel module Special Function/Set Options as needed.

Did you complete the repair?

Go to Step 7

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2