`222 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 P19D220:- OBC AC Frequency Out of Range Overview: ISO Code (If applicable) P19D200 Customer Symptom NA Fault Effect (On Vehicle) OBC will stop charging HV battery. Lamp Status (If Any) NA DTC Detection Condition DTC is logged when AC Charging mode 1.Check AC input supply Freq = < 44Hz ±5% or AC Freq >= 66Hz ±5%, Timer > 100ms 2. OBC has received command VCU_ChrgSysOperCmd equal 0x2(WORK) All of above conditions are true Normal Operating Condition 44.5Hz ±5%=<AC input supply Freq = < 65.5Hz ±5%, and Timer > 100ms Probable Trouble Area 1.The power grid is abnormal 2. Abnormal AC power supply from wall mount unit. 3. 3in1 AC detection circuit failure Healing Condition Disconnect the gun and connect back after VCU sleep 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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