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。
原廠原文中的含義
原文含義可能隨車型與後綴變化。此處依來源顯示，不代表通用診斷結論。
P0621Generator L-Terminal Circuit set as current or history原廠技術資料
19以下為英文原文
BUICK, CHEVROLET
原文故障碼 P0621
This Preliminary information communicates to the technician what to do when they encounter a service charging system message with a DTC P0621.
BUICK, CHEVROLET
原文故障碼 P0621
This Preliminary information communicates to the technician what to do when they encounter a service charging system message with a DTC P0621.
CHEVROLET, GMC
原文故障碼 P0621
This Preliminary Information communication provides information to the technician the steps to diagnose and repair vehicle with a Service Charging System message or Service Engine Soon Malfunction Indicator Lamp and the…
CHEVROLET
原文故障碼 P0621
Malfunction Indicator Lamp (MIL) Illuminated with DTCs P2096 and/or P0621 Set
CHEVROLET
原文故障碼 P0621
Malfunction Indicator Lamp (MIL) Illuminated with DTCs P2096 and/or P0621 Set Condition/Concern Some customers may comment on the malfunction indicator lamp (MIL) being illuminated. Technicians may find diagnostic…
CHEVROLET
原文故障碼 P0621
This Preliminary Information communication provides information to the technician about vehicles that may have an intermittent "Service Charging System" message on the Driver Information Center or a Battery Malfunction…
核對適用車輛
39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 |
|---|---|---|
| Buick | ENCORE GX | 2025 |
| Buick | ENCORE GX | 2024 |
| Buick | ENVISTA | 2025 |
| Buick | ENVISTA | 2024 |
| Chevrolet | COLORADO | 2004 |
| Chevrolet | EXPRESS | 2009 |
| Chevrolet | IMPALA | 2015 |
| Chevrolet | MALIBU | 2015 |
| Chevrolet | MALIBU | 2014 |
| Chevrolet | MALIBU | 2004 |
| Chevrolet | SILVERADO | 2004 |
| Chevrolet | SILVERADO | 2003 |
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。