TML HARRIER Infotainment DTC Troubleshooting guide Version: 0.2 Draft Date: 31-Jul-18 Author: Vijaya Bhaskar B/Pritam Bansod Page: 57 of 113 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 Input Signal - circuit open 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 silver box is Open/Short to Battery. Normal Operating Condition When user changes settings of volume/media/radio using steering wheel Control, accordingly infotainment system will process it. Probable Trouble Area Wiring harness between silver box and Steering wheel control. silver box connector and connector terminals Steering wheel control connector and its terminals Intermittent connector and their terminals Healing Condition None
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