`19 5 Author: Neha Patil/Ganesh Kalkekar 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 LR DTC Troubleshooting Data Version: 1.0 Date: 18-07-2023 P3097 - 4B :- Drive Motor - over temperature Overview: ISO Code (If applicable) P3097 - 4B Customer Symptom Vehicle gets Stop. Fault Effect (On Vehicle) Vehicle goes from D-N Mode and Vehicle can’t be Cranked. Vehicle cannot be driven. Lamp Status (If Any) HV critical alert lamp on cluster glows HV Critical lamp on cluster glows DTC Trigger Condition This DTC gets logged if the temperature of the motor temperature is above 140°C160°C. Probable Causes (Trouble Area) Pressure drop in cooling system is more. Coolant is in bad condition i.e. the ratio of water and glycol is not maintained (50:50). Flow rate of the coolant is not maintained desired limit i.e. 8 to 12LPM. Traction Coolant line Leakage. Low Coolant level High Coolant temperature Vehicle is overloaded Losses in motor increases due to degradation Motor winding gets short circuited Cooling system failure/Vehicle overload Healing Condition Ignition Reset Write up for the system:- E-drive is a three in one unit which consist of Electric motor, Motor Controller Unit and Gear- Box, Where this unit draws power from the High voltage battery and convert that electric power into kinetic energy which helps to rotate the vehicle. During braking vehicle kinetic energy convert in to electric energy.
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