DTC P068B Chevrolet
Class 2 Communication Malfunction
Class 2 Communication Malfunction
Description
Modules connected to the Class 2 circuit monitor for serial data communications during normal vehicle operation. Operating information and commands are exchanged among the modules. When a module receives a message for a critical operating parameter, the m
Cause and Solution
Class 2 circuit is open, shorted to ground or shorted to powerPCM ignition power circuit(s) has a high resistance conditionPCM main ground circuit(s) has a high resistance conditionSDM (module) could be shorted pulling the voltage low
Video Guide
Diagnostic Info
- DTC Code: P068B
- Brand: Chevrolet