DTC Troubleshooting Master Document for BMS Version: 1.0 Date: 30th Nov 2022 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. U132D - 87:- BMS Daisy Chain communication fault charging third level fault..... 47 P306A - 13 :- BMS_HVILAlarm discharging first level alarm ................................... 48 P306B - 1C :- BMS cell voltage sampling fault discharging first level fault ........... 49 P306C - 1C :- BMS cell voltage sampling fault charging second level fault .......... 50 P306D - 87 :- BMS current sensor discharging second level fault.......................... 51 P306E - 87 :- BMS current sensor charging second level fault............................... 52 P306F - 86 :- BMS temperature sensor discharging first level fault ....................... 53 P3069 - 1C :- BMS voltage difference Static First level alarm ................................. 54 P3070 - 86 :- BMS temperature sensor charging second level fault ....................... 55 P3071 - 73 :- BMS_Precharging HW third level fault ................................................ 56 P3072 - 73 :- BMS_NegMainRly HW third level fault................................................. 57 P3073 - 73 :- BMS_PosMainRly HW third level fault................................................. 58 P3074 - 56:- BMS_Current sensor offline discharge second level fault ................. 59 P3075 - 56 :- BMS_Current sensor offline charging third level fault....................... 60 P3079 - 1C :- BMS cell voltage sampling fault discharging second level fault...... 61 P307A - 1C :- BMS cell voltage sampling fault discharging third level fault.......... 62 P307B - 1C :- BMS cell voltage sampling fault charging third level fault ............... 63 U132E - 87:- BMS Daisy Chain communication fault discharging second level alarm............................................................................................................................. 64 U132F - 87:- BMS Daisy Chain communication fault third level alarm ................... 65 U1330 - 87:- BMS Daisy Chain communication fault charging second level fault. 66 P307C - 87 :- BMS current sensor discharging third level fault .............................. 67 P307D - 87 :- BMS current sensor charging third level fault ................................... 68 P307E - 86 :- BMS temperature sensor charging third level fault ........................... 69 P307F - 56 :- BMS_Current sensor offline discharge third level fault..................... 70 P3080 - 56 :- BMS_Current sensor offline charging second level fault .................. 71 P30A1 - 19 :- BMS charging current overload first level alarm- circuit current above threshold........................................................................................................... 72 P30A2 - 19 :- BMS charging current overload second level alarm - circuit current above threshold........................................................................................................... 73 P30A3 - 19 :- BMS charging current overload third level alarm - circuit current above threshold........................................................................................................... 74 P30A4 - 98 :- BMS PCB high temperature ................................................................. 75
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