The Blower Fan(s) Runs slower than expected In Cold Weather

The blower fan(s) runs slower than expected in cold weather

ECT troubleshooting: ECT sensor 2 circuit low voltage P2184, ECT sensor 2 circuit high voltage P2185

NOTE: It is normal for the blower(s) to run slowly until the engine coolant temperature begins to rise. If the blower continues to run slowly for an abnormal length of time, continue to troubleshoot the problem

Also check for

Powertrain DTCs Initial Inspection and Diagnostic Overview

Also check for

Blower motor operation