`17 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 LV Service Schematic ............................................................................................................................................................................. 309 HV Service Schematic ............................................................................................................................................................................ 310 Component & Connector Location (On Vehicle) Image:-....................................................................................................................... 311 View from Front Bumper side ............................................................................................................................................................... 311 Connector View & Information:- ................................................................................................................................................................ 313 U1320 – 87 :- Lost Communication With Vehicle Control Unit (VCU) - missing message ................................................................... 314 Overview: .............................................................................................................................................................................................. 314 Write up for the system:-....................................................................................................................................................................... 314 Trouble Shooting:-................................................................................................................................................................................. 315 Flow Diagram for diagnosing the Fault:.................................................................................................................................................. 315 Conditions/Points to be Checked after Repair:- .................................................................................................................................... 315 Schematic Block Diagram:- ................................................................................................................................................................... 316 LV Service Schematic ............................................................................................................................................................................. 316 HV Service Schematic ............................................................................................................................................................................ 317 Component & Connector Location (On Vehicle) Image:-....................................................................................................................... 318 View from Front Bumper side ............................................................................................................................................................... 318 Connector View & Information:- ................................................................................................................................................................ 320 U0028 – 88 :- Vehicle Communication Bus "A" - bus off.................................................................................................................... 321 Overview: .............................................................................................................................................................................................. 321 Write up for the system:-....................................................................................................................................................................... 321 Trouble Shooting:-................................................................................................................................................................................. 322 Flow Diagram for diagnosing the Fault:.................................................................................................................................................. 322 Conditions/Points to be Checked after Repair:- .................................................................................................................................... 322 Schematic Block Diagram:- ................................................................................................................................................................... 323 LV Service Schematic ............................................................................................................................................................................. 323 HV Service Schematic ............................................................................................................................................................................ 324 Component & Connector Location (On Vehicle) Image:-....................................................................................................................... 325 View from Front Bumper side ............................................................................................................................................................... 325 Connector View & Information:- ................................................................................................................................................................ 327 P309F – 44 :- Error in checksum Calculation in-between MCU and VCU-Data Memory Failure ......................................................... 328 Overview:- ............................................................................................................................................................................................. 328 Write up for the system:-....................................................................................................................................................................... 328 Trouble Shooting:-................................................................................................................................................................................. 329 Flow Diagram for diagnosing the Fault:.................................................................................................................................................. 329 Conditions/Points to be Checked after Repair:- .................................................................................................................................... 329
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