HYUNDAI

23-EE-002H

2023-02-16 · NHTSA 10232192

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。

厂商摘要

以下为英文原文

This bulletin provides information related to the Engine Control Module (ECM) / Hybrid Control Unit (HCU) software update for Tucson Hybrid (NX4 HEV) / Plug-in Hybrid (NX4 PHEV) vehicles to improve the following DTC and symptoms: 1. P1441 (EVAP System Flow During Non-Purge Condition) a. Misdiagnosis due to insufficient margin of pressure deviation when driving at constant speed with low engine load i. Logic improvement to eliminate misdiagnosis 2. P1A77 (Check Generator Belt) a. Misdiagnosis due to poor synchronization release when the engine is stopped i. Logic improvement to release synchronization even if CAM signal is active when engine is stopped 3. P00B7 (Engine Coolant Flow Low/Performance) a. ITM control error due to temporary ball valve stuck i. Improvement to ITM cleaning logic (1 time -> 5 times) 4. P2118 (Throttle Actuator Control Motor Current Range/Performance) / P0401 (EGR Flow Insufficient Detected) 5. P0236 (Turbocharger System Boost Sensor A Circuit Range/Performance) / P0299 (Turbocharger underboost) a. Failure due to EGR condensate freezing i. Change the EGR Flow diagnosis condition (-40℃ → -7℃) 6. P2B60 (Engine Coolant Flow Control Valve Position Sensor Circuit Range/Performance) a. Insufficient control at the end point when ITM cleaning logic completes operation i. Improve the ITM cleaning logic for better control 7. Oil Dilution: Some vehicles may experience increased oil consumption and white smoke due to the diluting of engine oil with fuel because of the frequent transition between EV ↔ Engine mode during the winter season a. Modify fuel injection strategy below 10℃ and add oil heating function based on the driving pattern.

仅当厂商、通报编号、发布日期和完整摘要一致时，重复登记才会合并展示，原始编号仍予保留。旧资料继续供查阅；确认明确替代关系后才标示后续版本。1994 年以前的车辆关联与默认结果分开显示；未注明年款不等于适用于所有年款。