× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

U0401 Diagnostic Trouble Code Discussion for April 2026

Implausible Data Received From ECM / PCM


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC U0401
Help Request Posted
2019 Ford Edge SEL 2.0L MIL Lamp on VIN: 2FMPK3J99K
U0401: Invalid data received from pcm - stored in lane assist module A. Hello fellow techs, this one is a bit of a head scratcher. Vehicle came in with a 2AB7 on 2-6-25, found the wastegate actuator bad, replaced actuator and linkage, came back with the same code on 2-3-26, once again replaced the actuator and rod, came back o...
April 22, 2026