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Home >> Ford >> 2011 >> Fiesta SES, Automatic DCT >> Repair and Diagnosis >> External Pages >> Different car >> Section 133 (Steering System) >> Interactive Diagnostics >> DTC/Symptom Selection >> DTC Index >> DTC U0100: Lost Communication with ECM/PCM A >> Possible Causes
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Possible Causes

WARNING: This page is about a different car, the 2013 Ford Fiesta. However, it is still accessible from the selected car via links, so may be relevant.

Fuse(s).

Wiring, terminals or connectors.

PCM.

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