Test Step 1 - Check for an Active Control Circuit/Performance DTCs
- Turn the ignition ON.
- With the scan tool, read active HVAC DTCs.
Does the scan tool display any active control circuit/performance DTCs?
Yes
- Diagnose and repair the DTCs. If present, diagnose and repair all rear blend and rear mode door control circuit/performance DTCs first, then all other control circuit/performance DTCs next. Refer to the table of contents in this service information for a complete list of all HVAC related symptoms.
No