B0272 GMC
Air Flow Control 7 Circuit Open
GMC
B0283 GMC
Electric Rear Defrost Circuit Malfunction
B0269 GMC
Air Flow Control 7 Circuit Range
B0270 GMC
Air Flow Control 7 Circuit Low
B0271 GMC
Air Flow Control 7 Circuit High
B0267 GMC
Air Flow Control 6 Circuit Open
B0268 GMC
Air Flow Control 7 Circuit
B0264 GMC
Air Flow Control 6 Circuit Range/Performance
B0265 GMC
Air Flow Control 6 Circuit Low
B0266 GMC
Air Flow Control 6 Circuit High