U1152 code. Make: GMC Code: U1152 Definition: No Communication With HVAC Control Module Description: Key on, and a message from a learned ID number was not detected for the five seconds. Learn what Lost Communications With HVAC Control Module means, location and how to repair. Make: Chevrolet Code: U1152 Definition: No Communication With HVAC Control Module Description: Key on, and a message from a learned ID number was not detected for the five seconds. Code U1152 Chevrolet Description The U1152 code for Chevrolet indicates that the vehicle's onboard diagnostic system has detected a loss of communication with the HVAC (Heating, Ventilation, and Air Conditioning) control module. Despite replacing compressor, sensors, PCM, and ECO, AC only works when bypassing pins, suggesting wiring harness or connector faults. Yes What Does The Chevrolet U1152 Code Mean? Key on, and a message from a learned ID number was not detected for the five seconds. Find the repair process of U1152 OBD 2 engine fault code. com Ron Nielson - Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different 2008 Silverado LT, Crew Cab, 2WD,LB . Repair Information for U1152 code. Jun 20, 2012 ยท u1152 loss of communication for the HVAC module u1041 loss of communication for the EBCM (Electronic Brake Control Module) I'd start by cleaning two ground locations on the truck. fu vtom9 vjb ehd65mk m5q822 mzum i3ji gjes cfsw 9so