TIAGO TIGOR BSVI - SERVICE MANUAL - DTC 24-12-2021

TML 7” Infotainment DTC Troubleshooting guide for Tigor Version: 0.1 Date: 13 th Aug 18 Author: Pritam Bansod Page: 3 of 55 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. Contents Change History ......................................................................................................................................................... 2 B1C01-13: AM/FM Antenna Signal Input Open Circuit ............................................................................................ 4 B1C33-2A: Hard Switch Signal Input – Stuck in Range ............................................................................................. 8 B1C0E-13: Microphone Signal Input Open Circuit .................................................................................................11 B1C0A-13:Rear Left speaker-Open circuit..............................................................................................................16 B1C0B-13: Rear Right speaker-Open circuit ...........................................................................................................21 B1C08-13: Front Left speaker-Open Circuit ...........................................................................................................25 B1C09-13: Front Right speaker-Open Circuit .........................................................................................................29 B1C20-2A : Steering Wheel control Signal Input – Stuck in Range ........................................................................34 B1C20-13 : Steering Wheel control Signal Input Open Circuit/Short to Battery....................................................39 CAN Bus Architecture .............................................................................................................................................44 Preliminary Check...................................................................................................................................................46 U0028-13:- Vehicle Communication Bus A - open circuit ......................................................................................47 U0028-88:- Vehicle Communication Bus A - Bus off ..............................................................................................49 U0424-81:- Invalid Data received from HVAC Control Module- Invalid serial data received ................................51 Appendix.................................................................................................................................................................54 End Of Document ...................................................................................................................................................55