Blower fan runs slower than expected in cold weather (when in AUTO mode)
WARNING: This page is about a different variant/trim than selected.
NOTE:
It is normal for the blower fan to run slowly until the engine coolant temperature rises when in AUTO mode
Diagnostic Procedure
Probable cause: Engine coolant temperature (ECT) circuit malfunction
Troubleshoot the ECT sensor circuit:
- ECT sensor 1 out of range
- ECT sensor 1 circuit range/performance problem
- ECT sensor 1 circuit low voltage
- ECT sensor 1 circuit high voltage
Also Check for
- Climate control DTCs
- PGM-FI DTCs
- Manual blower motor operation