这个码是什么意思？
以下表述对应所列厂商与通报。使用前请核对完整报码、报码模块、年款和发动机。
故障码描述检测到的异常，不直接指定必须更换的零件。
厂商技术资料
10以下为英文原文
CADILLAC, CHEVROLET, GMC
原文报码 U0121
This Preliminary Information communication provides information to the technician about vehicle with Service ABS and/or Traction control lights/message on, Service Power Steering System, Service Suspension System, and…
CADILLAC, CHEVROLET, GMC
原文报码 U0121
This Preliminary Information communication provides information to the technician about vehicle with Service ABS and/or Traction control lights/message on, Service Power Steering System, Service Suspension System, and…
BUICK, CADILLAC, CHEVROLET, GMC
原文报码 U0121
This Preliminary information communicates a false setting of DTCU0121 in the FVCM due to a FVCM software anomaly. Code U0121 will set and be moved to history in the FVCM with each ignition cycle.
CADILLAC, CHEVROLET, GMC
原文报码 U0121
This Preliminary Information communication provides information to the technician about vehicle with Service ABS and/or Traction control lights/message on, Service Power Steering System, Service Suspension System, and…
CADILLAC, CHEVROLET, GMC
原文报码 U0121
This Preliminary Information communication provides information to the technician for a reduced power message, steering assist, engine stall or the instrument panel, radio, and or Heater-Vent-Air Conditioning go blank…
CADILLAC, CHEVROLET, GMC
原文报码 U0121
This Preliminary Information communication provides information to the technician about vehicle with Service ABS and/or Traction control lights/message on, Service Power Steering System, Service Suspension System, and…
核对适用车辆
13车型关联可作为查阅线索；具体发动机、生产范围和软件条件请核对厂商资料。
历史车辆关联；此记录不证明车辆支持 OBD-II。
| 品牌 | 车型 | 年款 |
|---|---|---|
| Chevrolet | SILVERADO 2500 | 2019 |
| Chevrolet | SILVERADO 2500 | 2018 |
| Chevrolet | SILVERADO 2500 | 2017 |
| Chevrolet | SILVERADO 2500 | 2016 |
| Chevrolet | SILVERADO 2500 | 2015 |
| Chevrolet | SILVERADO 2500 | 2014 |
| Chevrolet | SILVERADO 2500 | 2013 |
| Chevrolet | SILVERADO 2500 | 2012 |
| Chevrolet | SILVERADO 2500 | 2011 |
| Chevrolet | SILVERADO 2500 | 2010 |
| Chevrolet | SILVERADO 2500 | 2009 |
| Chevrolet | SILVERADO 2500 | 2008 |
历史车辆记录 · 243 · 历史车辆关联；此记录不证明车辆支持 OBD-II。
更换零件之前
记录报码及冻结帧，检查蓄电池状态、相关报码和可见的线束或软管损伤。按照该车诊断流程和测试结果决定维修，避免仅凭故障码换件。
还能继续驾驶吗？
仅靠故障码无法判断是否适合继续行驶。故障灯闪烁、严重抖动、过热、机油压力报警或制动转向异常都需及时处理。影响车辆控制或发动机安全时，应在安全地点停车并寻求帮助。以车辆手册为准。