GUIDE / OBD-II
舊通報還有參考價值嗎？
舊資料對相應年代的車輛仍可能適用，日期早不代表內容失效。請核查明確取代聲明、車型、引擎、生產範圍、症狀與軟體。技術通報不等同召回，也不保證免費維修。本索引採用美國 NHTSA 原廠資料；查不到不代表其他市場沒有相關文件。
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。
掃描記錄表 →有原廠依據的故障碼釋義
來源與解讀範圍
先理解含義，再核對引用的原廠頁碼。參考說明與限定車型案例範圍不同，採用維修指令前須確認應用。
- Manufacturer Communications — Overview and Access to Publicly Available Manufacturer Communications ↗
National Highway Traffic Safety Administration
Defines the US manufacturer-communications collection, including service notices, warranty/policy extensions and both safety-related and non-safety defects; explains public publication. Presence in this collection alone is not evidence of a recall, warranty entitlement or worldwide applicability.
- 21-NA-146 — MIL Illuminated, DTC P0011 and/or P0014 Set — June 2021 ↗
General Motors · PDF 1, 2, 3
Applicability/version example only: 2019 Chevrolet Silverado 1500 and GMC Sierra 1500 New Model with L3B 2.7L, specified regions. Replaces PIP5648; instructions differ by production date and warn against assuming vehicle applicability. This archived version is not asserted to be the latest service instruction.