DTC P0640 Chevrolet
Data Circuit Message
Data Circuit Message
Description
Key on, and the PCM detected a signal that indicated a fault was present in the SCP bus (perform the network communication tests). Note: Network codes occur during module-to-module communication failures. Invalid and Missing data network faults are outlin
Cause and Solution
Invalid Data: Data transferred in normal inter-module messages with known invalid data. Transmitting module will set the code.Missing Network Data: Missing message fault logged by a module upon failure to receive a message from another module within a d
Video Guide
Diagnostic Info
- DTC Code: P0640
- Brand: Chevrolet