GM Authority

0GM Releases Fix For Faulty 2021 Cadillac CT4 Engine Control Modules

The General has issued a service bulletin describing a fix for certain units of the 2021 Cadillac CT4 compact luxury sedan that may be affected by an incorrectly calibrated Engine Control Module (ECM) ...
AxleAddict on MSN

P0118 engine code explained: Causes, symptoms, and fixes for coolant temperature sensor issues

The P0118 code means that the engine control module (ECM) has detected a voltage signal that’s too high from the engine ...
GM Authority

0GM Releases Fix For Faulty 2021 Cadillac CT5 Engine Control Modules

The 2021 Cadillac CT5 luxury sedan is included in a newly issued GM service bulletin because a fix is now available for a software problem in the Engine Control Module that may cause the CT5 to fail ...
AxleAddict on MSN

P0443 engine code explained: What EVAP purge valve circuit failures mean for vehicle owners

The P0443 code indicates that your vehicle’s engine control module (ECM) has detected that there is an electrical malfunction ...