Blower Fan Runs Slower

Blower fan runs slower than expected in cold weather (when in AUTO mode) NOTE: It is normal for the blower fan to run slowly until the coolant temperature rises when in AUTO mode

Blower fan runs slower than expected in cold weather (when in AUTO mode)
NOTE: It is normal for the blower fan to run slowly until the coolant temperature rises when in AUTO mode

Probable cause: Engine coolant temperature (ECT) circuit malfunction

Troubleshoot ECT 2 circuit performance problem Locations

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Powertrain DTCs Initial Inspection and Diagnostic Overview

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Manual blower motor operation