LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2013 >> Fusion Energi Titanium >> Repair and Diagnosis >> Steering >> Power Steering System -- Hybrid >> Interactive Diagnostics >> Known Concerns >> DTC Index >> DTC U0121: Lost Communication with the Anti-lock Brake System (ABS) Control Module >> Diagnostic Aids
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Aids

DTC U0121:00 indicates that the ABS module cannot communicate over the HS-CAN bus. This could be due to a DTC being set in the ABS or a circuit fault in the HS-CAN bus. Do not install a new PSCM as part of the repair for a PSCM DTC U0121:00.

scientia non olet · About LEMON Manuals