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Home >> Lincoln >> 2010 >> MKS Base, AWD >> Repair and Diagnosis >> Steering >> Power Steering >> Steering System - Interactive Diagnostics (EPAS) >> Interactive Diagnostics >> DTC / Symptom Selection >> DTC Index - Power Steering Control Module (PSCM) >> DTC U0121: Lost Communication with the Anti-lock Brake System (ABS) Control Module >> Diagnostic Aids

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.

The presence of DTC U0121:00 will prevent the active park assist system (if equipped) from activating. If set during an active park assist event, the event will be terminated and the active park assist system will deactivate.

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