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Home >> Ford >> 2020 >> Transit Connect Titanium, Gas/Ethanol >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (EPAS Guided Routine) >> Pinpoint Tests >> Pinpoint Tests BT: PSCM DTC U0253 Lost Communication With Accessory Protocol Interface Module >> Pinpoint Tests Purpose
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Pinpoint Tests Purpose

WARNING: This page is about a different car, the 2020 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

To verify the PSCM wiring harness and connectors are OK. This test checks the connectors and wiring from the PSCM 3-pin connector at the steering gear to the in-line connector in the engine compartment. If these circuits are working correctly, the test then directs to check the APIM and wiring harness.