Vehicle Platform: Nexon-EV ,Nexon-MCE ECU Name: Telematics Control Unit (TCU) DTC Troubleshooting Data Version: 1.4 Date: 16-09-2020 Author: TCM COC Page: 4 of 121 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. U0100 - 08:- Lost Communication with ECM/PCM "A" - Bus Signal / Message Failures ....................................... 52 U0164 - 08 :- Lost Communication With HVAC Control Module - Bus Signal / Message Failures ....................... 54 U0155 - 08:- Lost Communication With Instrument Panel Cluster Control Module - Bus Signal / Message Failures ................................................................................................................................................................................ 56 U0151 - 08:- Lost Communication with Restraints Control Module - Bus Signal / Message Failures .................. 58 B2800 - 57:- Internet connection error - invalid / incomplete software component .................................................. 60 B2802 - 96:- SIM card error - component internal failure............................................................................................. 62 B2806 - 09:- Acceleration Sensor - Component Failures ............................................................................................ 64 U1605 - 09:- Internal Control Module Battery - Component Failures ......................................................................... 66 B2809 - 57:- Error communicating with board controller (Base band) - invalid / incomplete software component .............................................................................................................................................................................................. 68 B280C - 57:- Startup error of TCU - invalid / incomplete software component ........................................................ 70 B281D - 00:- Invalid firmware - no sub type information .............................................................................................. 72 B281E - 00:- Client certificate missing - no sub type information ............................................................................... 74 B282C - 00:- Internal IO Chip Error - no sub type information .................................................................................... 76 B282E - 12 :- LTE Antenna - Circuit Short To Battery................................................................................................. 78 B282F - 00 :- Internal battery not found - no sub type information ............................................................................. 81 B283F - 00 :- Internal battery not charging - no sub type information ....................................................................... 83 B2840 - 00 :- Internal Battery Temperature Low - no sub type information .............................................................. 85 B2841 - 00 :- Internal Battery Temperature High - no sub type information ............................................................. 87 B2833 - 11 :- Wake-Up Input from VCU - circuit short to ground ............................................................................... 89 B2833 - 12 :- Wake-Up Input from VCU - Circuit Short To Battery: .......................................................................... 92 B283D - 12 :- Wake-Up Output from BCM - Circuit Short To Battery ....................................................................... 95 B283D - 11 :- Wake-Up Output from BCM - circuit short to ground .......................................................................... 98 B2834 - 11 :- Analog Input - circuit short to ground .................................................................................................... 101 B2834 - 12 :- Analog Input - Circuit Short To Battery ................................................................................................. 104 B2834 - 13 :- Analog Input - Circuit Open .................................................................................................................... 107 B2836 - 11 :- Digital Output - circuit short to ground .................................................................................................. 110 B2836 - 12 :- Digital Output - Circuit Short To Battery ............................................................................................... 113 B283A - 13 :- Ignition Hardware Input Pin - Circuit Open ........................................................................................ 116 B282D – 00 :- Internal ADC error- no sub type information....................................................................................... 119
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