`172 Author: Navya Krishnan Copyright © TATA MOTORS Ltd. This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author. Kanger 3.0 DTC Troubleshooting Data Version: 1.0 Date: 24-July-2023 P19D119:- OBC battery side over current fault Overview:- ISO Code (If applicable) P19D119 Customer Symptom NA Fault Effect (On Vehicle) OBC will stop charging HV battery/ OBC will stop AC output during V2X mode Lamp Status (If Any) NA DTC Detection Condition This DTC gets logged if 1.HV side DC current＞24*1.15A, last for 500ms 2. OBC has received command VCU_ChrgSysOperCmd equal 0x2(WORK) All of above conditions are true. Normal Operating Condition when VCU_ChrgSysOperCmd equal 0x2(WORK): Charge/Power Mode: HV side DC current＜3A, last for 100ms, and OBC is not in fault status. When VCU_ChrgSysOperCmd equal 0x1(standby): if not escalates to unrecoverable fault, clear fault and DTC status ,irrespective of the parameter value. Probable Trouble Area 1. Abnormal battery or short circuit of high voltage circuit; 2. OBC hardware is damaged; 3. The OBC output current detection circuit is abnormal Healing Condition Disconnect the gun and connect back after VCU sleep / Disconnect the V2X gun and connect back after VCU sleep, press V2X switch Write up for the system:- The component 3in1(DC-DC Converter, On-Board Charger and Power distribution unit) is used to charge LV battery, HV battery and act as junction box between HV power train components ( PTC, e-Compressor, HV battery, Fast Charging and MCU)
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