Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2014F-150 FX2, 2D PICKUPREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1190 (ELECTRONIC POWER ASSIST STEERING COMPONENT TESTING)DTC/SYMPTOM SELECTIONDTC INDEXDTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULEDESCRIPTION
2014 Ford F-150 FX2, 2D Pickup
DTC U0140 Lost Communication With Body Control Module: Description
2014 Ford F-150 FX2, 2D PickupSECTION Description
WARNING: This page is about a different car, the 2016 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
The PSCM monitors the HS-CAN messages when the ignition has been on for more than 5 seconds, the voltage to the PSCM is greater than 6.5 volts and there are no DTCs present inhibiting PSCM operation.
- DTC U0140:00 (Lost Communication with the Body Control Module: No Sub Type Information) - This DTC sets when communication between the PSCM and the BCM fails. The BCM sends the following messages to the PSCM; alternator fault, ignition status, trailer lamp connectivity, and vehicle configuration. If these messages are missing for 5 seconds or more, DTC U0140:00 is set.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.