這個碼是什麼意思？
P0442 表示小洩漏，P0455 表示大洩漏，P0456 表示極小洩漏。檢查適用車型的油箱蓋密封、軟管與閥門，依原廠程序檢漏。油箱蓋鬆動只是可能原因之一。不要在燃油蒸氣附近使用壓縮空氣或明火測試。
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。
原廠技術資料
5以下為英文原文
FORD
原文故障碼 P0456
SOME 2016-2017 FOCUS RS VEHICLES EQUIPPED WITH A 2.3L GASOLINE TURBOCHARGED DIRECT INJECTION (GTDI) ENGINE AND BUILT ON OR BEFORE 10-DEC-2016 MAY EXHIBIT AN ILLUMINATED MIL WITH DTCS P0456, P1450 AND/OR P144A. THIS MAY…
FORD
原文故障碼 P0456
Some 2012-2015 Focus vehicles may exhibit inaccurate fuel gauge indication and/or inaccurate distance to empty. The vehicle may also exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes…
FORD
原文故障碼 P0456
FORD 2012-2014 FOCUS: CERTAIN VEHICLES MAY HAVE INCORRECT FUEL GAUGE INDICATION LAMP WITH DIAGNOSTIC CODES P0420, P1450, P0452,P0456, P0460 OR P2196. *LJ
FORD
原文故障碼 P0456
FORD: VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LIGHT (MIL) ON WITH DIAGNOSTIC TROUBLE CODE (DTC) P0456 (VERY SMALL EVAPORATIVE EMISSION SYSTEM LEAK DETECTED; VERY SMALL LEAK 0.020" (0.51 MM) DIAMETER). *PE
FORD, LINCOLN, MERCURY
原文故障碼 P0456
MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION WITH DIAGNOSTIC TROUBLE CODES P0442, P0455, P0456, P0457, P1442 OR CHECK FUEL CAP LAMP ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE P0457. *TT
核對適用車輛
12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 |
|---|---|---|
| Ford | FOCUS | 2017 |
| Ford | FOCUS | 2016 |
| Ford | FOCUS | 2015 |
| Ford | FOCUS | 2014 |
| Ford | FOCUS | 2013 |
| Ford | FOCUS | 2012 |
| Ford | FOCUS | 2009 |
| Ford | FOCUS | 2008 |
| Ford | FOCUS | 2003 |
| Ford | FOCUS | 2002 |
| Ford | FOCUS | 2001 |
| Ford | FOCUS | 2000 |
歷史車輛記錄 · 1 · 歷史車輛關聯；此記錄不證明車輛支援 OBD-II。
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。
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。
- 2024–2025 MY OBD System Operation Summary for Gasoline Engines ↗
Ford Motor Company · PDF 頁碼 13, 14 ·
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。