U0121 Diagnostic Trouble Code Discussion for January 2015
Lost Communication With EBCM
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| Help Request | Posted | |
| 2008 Chevrolet Silverado 1500 WT 4.3L No Start, MIL Lamp on VIN: 1GCEC14X48 U0121: Lost communication with abs. ... crank condition. Found no C.E.L. illumination on dash. Scanned vehicle and no communication with ecm but can communicate with all other modules. checked B+ and grounds all good. Installed new ecm and C.E.L. now flashes on dash. I can communicate with ecm (... |
January 08, 2015 | |
| 2008 Chevrolet Silverado 1500 WT 4.3L No Start, MIL Lamp on VIN: 1GCEC14X48 U0121: Lost communication with abs. ... crank condition. Found no C.E.L. illumination on dash. Scanned vehicle and no communication with ecm but can communicate with all other modules. checked B+ and grounds all good. Installed new ecm and C.E.L. now flashes on dash. I can communicate with ecm (... |
January 09, 2015 |
