U0401 Diagnostic Trouble Code Discussion for July 2020
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 | |
| 2009 Jeep Liberty Limited 3.7L MIL Lamp on VIN: 1J8GN58K99 U0401: implausible communications error. Vehicle throws p2181, u0401, throttle body lightening bolt and 4wd service required cold or hot, coolant temp goes to cold w/engine scanned temp at 194 degrees and has no drivability issues. I see this all over the web but haven't seen any common fixes. Si... |
July 22, 2020 |
