Code Definition

P1177 — Synchronisation

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Ford

About P1177

P1177 is a manufacturer-specific powertrain diagnostic trouble code recorded for Ford vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P1177 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

On the affected Ford applications synchronisation refers to the Powertrain Control Module (PCM) establishing the correct relationship between the camshaft and crankshaft signals so it can identify cylinder position for sequential fuel injection and ignition. DTC P1177 sets when the PCM loses or cannot achieve this synchronisation, meaning the cam and crank signals do not line up in the expected pattern. Without valid synchronisation the PCM may default to a batch fire or limited strategy or fail to identify cylinder events correctly. Symptoms can include hard starting, extended cranking, stall...

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