Kanger2.0: DTC Troubleshooting Document for BMS Version: 3.0 Date: 14th Jan 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. INTRODUCTION The HV battery pack in Kanger2.0 project is built-in with a Battery Management System (BMS) which communicates in real time with the powertrain e-VCU for ensuring safe and reliable operation of the powertrain system during vehicle operations like drive and charging. The BMS is located internal to the sealed battery pack and is only accessible through the LV connector that is present on the front face of the battery pack as referred in the picture below. This female connector is coupled with the male connector coming from the vehicle LV harness. IMPORTANT INFORMATION Any internal repairs to the HV battery pack cannot be performed at the TML service station and any such activity may void the battery pack’s warranty. The only removable component from the battery pack assembly represented by 8060R group in PLM is during the SW troubleshooting is the Manual Service Disconnect (MSD) switch. MSD disconnection instructions are provided in the APPENDIX-B below. Under ideal and intended operating conditions for all the HV components, the battery pack is not supposed to show any DTCs during any of the vehicle operations. Powertrain e-VCU is already incorporated with safety locks the ensure that the battery pack operates within the intended limitations. The DTCs are likely to be triggered when the battery pack of Kanger has been operated in scenarios that are not design-inteded. The operation manual covers the conditions for intended usage, handling and storage of the battery pack. PURPOSE OF DOCUMENT The purpose of this document is to serve as a detailed guide for servicing of HV battery pack for Kanger 2.0 project for reaching conclusions of diagnostics and troubleshooting in case the vehicle inwarded for servicing has battery faults.
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