这个码是什么意思？
控制器发现机油压力检测或性能异常。必须区分信号问题和真实机械油压偏低；只凭报码换传感器可能遗漏根因。所引通用案例要求先排除电气和传感器问题，再在规定的热机怠速条件下测量机械油压。
来源与解读范围 [1]
故障码描述检测到的异常，不直接指定必须更换的零件。
作为明确列出的一个案例，GM 24-NA-173 包含北美 2021–2024 年款 Escalade、L87 发动机，涉及机油泵泄压阀卡滞，但要求机械测压前先排除电气／传感器问题。其测压位置和压力门槛不是所有 P0521 的通用标准。
来源与解读范围 [1]
更换零件之前
如伴随机油压力报警或发动机异响，应安全停车并按车辆手册处理。由专业人员使用正确测压口及该发动机规格确认油压，不能套用其他测压口或发动机的阈值。
厂商原文中的含义
原文含义可能随车型和后缀变化。此处按来源展示，不代表通用诊断结论。
P0521Engine Oil Pressure Sensor PerformanceP0521Engine Oil Pressure Sensor PerformanceP0521Engine Oil Pressure Sensor PerformanceP0521Plausibility Monitoring Between Two Engine Oil Pressure Switch Inverted Mounting厂商技术资料
50以下为英文原文
VOLVO
原文报码 P052123
This is a TJ - Text plus 1 jpg - If the Check Engine Light is on and DTC ECM P052123 is stored, please follow the advice under "Service". with emphasis on the engine part numbers and serial numbers.
VOLVO
原文报码 P052123
This is a TJ - Text plus 1 jpg - If the Check Engine Light is on and DTC ECM P052123 is stored, please follow the advice under "Service". with emphasis on the engine part numbers and serial numbers.
VOLVO
原文报码 P052123
This is a TJ - Text plus 1 jpg - If the Check Engine Light is on and DTC ECM P052123 is stored, please follow the advice under "Service". with emphasis on the engine part numbers and serial numbers.
JEEP
原文报码 P0521
"Powertrain Control Module (PCM) Wiring Harness Contacting PCM Bracket Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must set the following Diagnostic Trouble Code (DTC): ●…
BUICK, CHEVROLET
原文报码 P0521
This Preliminary information communicates to the dealers information related to potential failed engine camshaft cover causing excessive engine oil consumption, blue smoke from the exhaust system at low mileage. Can…
BUICK, CHEVROLET
原文报码 P0521
This Preliminary information communicates to the dealers information related to potential failed engine camshaft cover causing excessive engine oil consumption and blue smoke from the exhaust system at low mileage. Can…
核对适用车辆
1,273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 |
|---|---|---|
| Audi | RS 3 | 2023 |
| Audi | RS 3 | 2022 |
| Buick | ALLURE | 2009 |
| Buick | ALLURE | 2008 |
| Buick | ALLURE | 2007 |
| Buick | ALLURE | 2006 |
| Buick | CASCADA | 2016 |
| Buick | CENTURY | 2005 |
| Buick | ENCLAVE | 2016 |
| Buick | ENCLAVE | 2015 |
| Buick | ENCLAVE | 2014 |
| Buick | ENCLAVE | 2013 |
来源与解读范围
以下解释由本站依据所列原厂资料整理。页码从 PDF 文件第一页计数。原文为英文，译文供查阅参考；引用某个版本不代表它就是厂商当前最新指令。
- 24-NA-173 · P0521, engine oil pressure sensor performance ↗
General Motors · PDF 页码 1, 2 ·
来源核对日期 · 2026-10-27
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。