這個碼是什麼意思？
控制器發現機油壓力偵測或性能異常。必須區分訊號問題與實際機械油壓偏低；僅憑此碼換感知器可能漏掉根因。所引通用案例要求先查電氣與感知器，再於指定熱車怠速條件量測機械油壓。
來源與解讀範圍 [1]
故障碼描述偵測到的異常，不直接指定必須更換的零件。
以一個明確列出的案例為例，GM 24-NA-173 包含北美 2021–2024 年式 Escalade、L87 引擎，涉及油泵洩壓閥卡滯；機械測壓前須先查電氣／感知器。測壓位置與門檻不可套用所有 P0521。
來源與解讀範圍 [1]
更換零件之前
若伴隨機油壓力警示或引擎異音，應安全停車並依車主手冊處理。由專業人員以正確測壓孔及該引擎規格確認油壓，不可混用其他位置或引擎的門檻。
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。
P0521Engine Oil Pressure Sensor PerformanceP0521Engine Oil Pressure Sensor PerformanceP0521Engine Oil Pressure Sensor PerformanceP0521Plausibility Monitoring Between Two Engine Oil Pressure Switch Inverted Mounting原廠技術資料
50以下為英文原文
VOLVO
原文故障碼 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
原文故障碼 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
原文故障碼 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
原文故障碼 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
原文故障碼 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
原文故障碼 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…
核對適用車輛
1,273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 |
|---|---|---|
| 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 |
來源與解讀範圍
以下解釋由本站依所列原廠資料整理。頁碼從 PDF 檔案第一頁起算。原文為英文，譯文供參考；引用某版本不代表它是原廠目前最新指令。
- 24-NA-173 · P0521, engine oil pressure sensor performance ↗
General Motors · PDF 頁碼 1, 2 ·
來源核對日期 · 2026-10-27
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。