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Home >> Lincoln >> 2018 >> Navigator Select, 4WD >> Repair and Diagnosis >> Steering >> Electronic Steering >> EPAS Guided Routine Testing >> DTC/Symptom Selection >> DTC Index >> DTC U0401: Invalid Data Received from ECM/PCM A >> Diagnostic Aids
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Diagnostic Aids

DTC U0401:00 indicates a PCM message concern. The module reporting this DTC is not the problem module. Do not install a new PSCM as part of the repair for PSCM DTC U0401:00.

When this DTC is set, steering assist is reduced resulting in higher steering efforts during low speed maneuvers.

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