這個碼是什麼意思？
以下表述對應所列原廠與通報。使用前請核對完整故障碼、回報模組、年式與引擎。
故障碼描述偵測到的異常，不直接指定必須更換的零件。
原廠技術資料
10以下為英文原文
CADILLAC, CHEVROLET, GMC
原文故障碼 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
原文故障碼 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
原文故障碼 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
原文故障碼 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
原文故障碼 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
原文故障碼 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…
核對適用車輛
13車型關聯可作查閱線索；引擎、生產範圍與軟體條件請核對原廠資料。
| 品牌 | 車型 | 年式 |
|---|---|---|
| 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 |
歷史車輛記錄 · 243 · 歷史車輛關聯；此記錄不證明車輛支援 OBD-II。
更換零件之前
記錄故障碼與凍結資料，檢查電瓶狀態、相關故障碼和可見線束或軟管損傷。依該車診斷程序與測試結果決定維修，避免僅憑故障碼換件。
還能繼續駕駛嗎？
不能只憑故障碼判斷能否繼續行駛。故障燈閃爍、嚴重抖動、過熱、機油壓力警示或煞車轉向異常需立即注意。影響操控或引擎安全時，應在安全地點停車並求助。以車主手冊為準。