NEXON 3.0 EV DTC Troubleshooting Document for VCU Version: 2.0 Date: 22-Sep-2023 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. P3084 - 68: - High Voltage battery Level 3 Fault CAN signal received by VECU - event information ISO Code P3084 - 68 Customer Symptom Vehicle will not crank. If vehicle is in driving condition, it will go from Drive/Sports/Reverse to Neutral. Battery pack is disconnected. Air conditioning and charging will not happen. Fault Effects (On Vehicle) Vehicle will not be drive able. If vehicle is in running condition, it will go from Drive/Sports/Reverse to Neutral. Air conditioning and charging will be disabled. Vehicle will not crank in the next Ignition cycle if this error is in confirmed state. Air conditioning and charging will not happen. Lamp Status (If Any) HV critical lamp Blinking Limp home telltale blinking. Fault Detection Condition HV Battery has level 3 fault as received on CAN signal by VECU Normal Operating Condition HV Battery pack will be functional and vehicle will be drivable Probable Trouble Area HV Battery pack, HV battery LV and HV connectors, HV and LV wiring harness connected to HV battery. (refer Battery trouble shooting document for more information) Healing Condition If DTC trigger condition is healed, DTC is present only in memory Component details: HV battery is used to drive the power train components. When HV battery level 3 fault is received to VECU from BMS as a CAN signal, HV battery is disconnected by opening contactors. Preliminary Checks:
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