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Home >> Ford >> 2019 >> Fiesta ST Line, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 301 (EPAS Guided Routine) >> Pinpoint Tests >> Pinpoint Tests AZ: 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 2019 Ford Fusion. 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 TCCM messages within a certain time frame.

This can occur if the TCCM 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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