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
8以下为英文原文
BUICK
原文报码 p0494
This Preliminary information communicates the potential for dtc p0494 to be stored in the ECM due to potential software anomaly
BUICK
原文报码 P0494
This Preliminary information describes a condition where engineering is working on a solution to a P0494 DTC stored in the ECM.
GMC
原文报码 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
原文报码 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
原文报码 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
原文报码 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.
核对适用车辆
39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。
| 品牌 | 车型 | 年款 |
|---|---|---|
| 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。