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

TML Tiago/Tigor Touch Based Level A Infotainment System DTC Troubleshooting Guide Version: 0.3 Date: 06 th Dec 19 Author: Pritam Bansod Page: 35 of 51 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. B1C20-13 : Steering Wheel control Signal Input Open Circuit/Short to Battery Overview: Write up for the Related Sensor/Actuator or system:- Steering wheel control module – This steering wheel control module is located on steering wheel. Using steering wheel control module, user can change volume/media/radio settings. Pre-Check Points: NO Trouble Shooting:- Below given flowcharts guides to troubleshoot the fault: ISO Code B1C20-13 Customer Symptom User is unable to change volume/media/radio settings using steering wheel control module. Fault Effects (On Vehicle) No Lamp Status (If Any) No Fault Detection Condition 1. User is unable to change volume/media/radio settings using steering wheel control module. 2. This DTC gets logged when connection between steering wheel control signal input and Head Unit is Open/Short to Battery. Normal Operating Condition When user changes settings of volume/media/radio using steering wheel Control, accordingly Head Unit will process it. Probable Trouble Area  Wiring harness between HU and Steering wheel control.  HU Connector and connector terminals  Steering wheel control connector and its terminals  Intermittent connector and their terminals Healing Condition None