`136 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 P19D017:- OBC AC side overvoltage fault Overview: ISO Code (If applicable) P19D017 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. Charge/Power Mode: AC Grid voltage effective value ≥275±5V, last for 100ms. And OBC has received command VCU_ChrgSysOperCmd equal 0x2(WORK) All of above conditions are true. 2. DischargingMode/V2X mode: 1.ACVoltage>=253V, last for >100ms And OBC has received command VCU_ChrgSysOperCmd equal 0x2(WORK) ,VCU_VehChrgDischrgMod equal to 0x2(VTOL Discharge) or 0x3(VTOV Discharge) Normal Operating Condition when VCU_ChrgSysOperCmd equal 0x2(WORK): Charge/Power Mode: AC voltage effective value ≤265±5V, Discharge/V2X mode:OBC provides 220±5% Vrms, 50±5Hz AC output Probable Trouble Area Charge mode 1. The power grid is abnormal; 2. The connection of the charging gun or wiring harness is abnormal; 3. The AC side voltage detection circuit is abnormal; V2X mode 1. The AC side voltage detection circuit is abnormal; 2. OBC internal issue 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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