DTC P177F Ford
No Communication With Powertrain Control Module
No Communication With Powertrain Control Module
Description
Key on, and a message from a learned ID number was not detected for the five seconds. Modules on the Class 2 circuit monitor for data communications during vehicle operation. When a module receives a message for critical data, the module records the ident
Cause and Solution
PCM Class 2 circuit is open, shorted to ground or to B+PCM ignition power circuit(s) has a high resistance conditionPCM main ground circuit(s) has a high resistance conditionPCM (module) may have failed and is pulling the circuit low
Video Guide
Diagnostic Info
- DTC Code: P177F
- Brand: Ford