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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1223 (Electronic Power Assist Steering Component Testing) >> DTC Symptom Selection >> DTC Index >> DTC U0001: High Speed CAN Communications Bus >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

DTC U0001:88 indicates a failure of the HS-CAN which can be due to a circuit failure in the HS-CAN or the PSCM wiring harness.

When this DTC is set, steering assist is reduced but not removed.

The presence of DTC U0001:88 prevents the active park assist system (if equipped) and the lane keep assist function (if equipped) from activating. If set during an active park assist event, the event is terminated and the active park assist system is deactivated.