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Home >> Ford >> 2018 >> Focus RS >> Repair and Diagnosis >> External Pages >> Different car >> Section 310 (EPAS Guided Routine Testing) >> Pinpoint Tests >> Pinpoint Test AW: PSCM DTC U0403 Invalid Data Received From The Transfer Case Control Module >> DTC Trigger
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DTC Trigger

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

This DTC occurs when the PSCM does not receive the PCM messages within a certain time frame.

This can occur if the PCM wiring harness or electrical connectors are loose or damaged, or if the vehicle battery state of charge levels are low. Consult the DTC Index for additional information if needed.

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