Vehicle Platform: All ECU Name: Telematics Control Unit (TCU) DTC Troubleshooting Data Version: 1.12 Date: 02-06-2022 Author: TCM COC Page: 5 of 150 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. B283A - 13 :- Ignition Hardware Input Pin - Circuit Open ........................................................................................ 118 B282D – 00 :- Internal ADC error- no sub type information....................................................................................... 121 B2842- 12:E-Call switch – Circuit short to battery....................................................................................................... 123 B2842- 11:E-Call switch – Circuit short to ground ...................................................................................................... 126 Overview: ................................................................................................................................................................... 126 B2842- 13:E-Call switch – Circuit open ........................................................................................................................ 129 Overview: ................................................................................................................................................................... 129 Troubleshooting: ....................................................................................................................................................... 130 B2843- 12: B-Call switch – Circuit short to battery ..................................................................................................... 132 Overview: ................................................................................................................................................................... 132 Troubleshooting: ....................................................................................................................................................... 133 B2843- 11: B-Call switch – Circuit short to ground ..................................................................................................... 135 Overview: ................................................................................................................................................................... 135 Troubleshooting: ....................................................................................................................................................... 136 B2843- 13: B-Call switch – Circuit open ....................................................................................................................... 138 Overview: ................................................................................................................................................................... 138 Troubleshooting: ....................................................................................................................................................... 139 B2844- 13:Horn Hardwired- Circuit open ..................................................................................................................... 141 Overview: ................................................................................................................................................................... 141 Troubleshooting: ....................................................................................................................................................... 142 B2802 - 95:- SIM card not registered – Incorrect Assembly ...................................................................................... 144 Troubleshooting: ....................................................................................................................................................... 145 B281B - 00:- Cloud Communication Error – no subtype information ....................................................................... 146 Troubleshooting: ....................................................................................................................................................... 147 U0127 - 08:- Lost Communication With Tire Pressure Monitor Control Module - Bus Signal / Message Failures ............................................................................................................................................................................................ 148 Troubleshooting: ....................................................................................................................................................... 149 List of DTCs masked in the Tool: ................................................................................................................................... 150
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