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
8以下為英文原文
BUICK
原文故障碼 p0494
This Preliminary information communicates the potential for dtc p0494 to be stored in the ECM due to potential software anomaly
BUICK
原文故障碼 P0494
This Preliminary information describes a condition where engineering is working on a solution to a P0494 DTC stored in the ECM.
GMC
原文故障碼 P0494
This Preliminary information communicates to the field that water hitting the cooling fans can set a false DTC: P0494 for the 2022-2024 HUMMER EV.
GMC
原文故障碼 P0494
This Preliminary information communicates to the field that water hitting the cooling fans can set a false DTC: P0494 for the 2022-2023 HUMMER EV.
GMC
原文故障碼 P0494
This Preliminary information communicates to the field that water hitting the cooling fans can set a false DTC: P0494 for the new 2022 HUMMER EV.
BUICK, CADILLAC
原文故障碼 P0494
This engineering information (EI) closure ends the need for further information from technicians in regards to the Check Engine Lamp illuminated on the Driver Information Center (DIC) with P0494 Set.
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 | ENCLAVE | 2021 |
| Buick | ENVISION | 2026 |
| Buick | ENVISION | 2021 |
| Cadillac | XT4 | 2021 |
| Cadillac | XT5 | 2021 |
| Cadillac | XT5 | 2020 |
| Cadillac | XT6 | 2021 |
| Chevrolet | BLAZER | 2021 |
| Chevrolet | BLAZER | 2020 |
| Chevrolet | TRAVERSE | 2021 |
| Ford | F-250 SD | 2019 |
| Ford | F-250 SD | 2018 |
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。