
U0121 Diagnostic Trouble Code Discussion for April 2020
Lost Communication With EBCM
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 U0121
Help Request | Posted | |
2017 Ford F-150 Raptor 3.5L MIL Lamp on VIN: 1FTEW1C81H U0121: lost communication with antilock brake. This truck intermittently loses communication on the hs2 can network. This causes the vehicle to light up like a xmas tree. It never acts up long enough to determine if its a shorted module or harness issue. I have gone through the harness the best I can. ... |
April 13, 2020 | |
2017 Ford F-150 Raptor 3.5L MIL Lamp on VIN: 1FTEW1C81H U0121: lost communication with antilock brake. This truck intermittently loses communication on the hs2 can network. This causes the vehicle to light up like a xmas tree. It never acts up long enough to determine if its a shorted module or harness issue. I have gone through the harness the best I can. ... |
April 14, 2020 |