`31 4 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 U1320 – 87 :- Lost Communication With Vehicle Control Unit (VCU) - missing message Overview: ISO Code (If applicable) U1320 – 87 Customer Symptom Vehicle gets Stop. Fault Effect (On Vehicle) Vehicle goes from D-N Mode and Vehicle can’t be Cranked. Lamp Status (If Any) HV critical alert lamp on cluster glows DTC Trigger Condition This DTC is logged if the CAN communication from VCU is lost for more than 500ms. Probable Trouble Area Wiring Harness is broken VCU is not sending the messages. Line Damage 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 converts that electric power into kinetic energy which helps to rotate the vehicle. During braking vehicle kinetic energy convert in to electric energy.
RkJQdWJsaXNoZXIy MTIwNTUz