Reduced Air Flow From HVAC Vents And DTC B3933 – 2007-2009 Cadillac Chevrolet GMC Hummer
NHTSA ID Number: 10125955 Manufacturer Communication Number: PIT5297 Summary This Preliminary Information communication provides information to the technician about vehicles that may have reduced air flow from the Heater-Vent-Air Conditioning dash vents. Technician may find B3933 sym 05 set in the Heater-Vent-Air Conditioning control head. Technician will need to reprogram the Heater-Vent-Air Conditioning control head using … Read more