DTC P0307 Buick
Lost Communication With ECM B
Lost Communication With ECM B
Description
Key on, and the ECM detected that it has lost communication during its initial startup. The Engine Control Module (ECM) communicates with all databus-capable control modules via a CAN databus. These databus-capable control modules are connected via two da
Video Guide
Diagnostic Info
- DTC Code: P0307
- Brand: Buick