TML Gen3 IVI DTC Troubleshooting guide Version: 0.4 Draft Date: 04-Aug-23 Author: Hemant Mitra Page: 139 of 584 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. B1C56-13: Right Subwoofer Assembly Output Power / Right Subwoofer Assembly Input Signal - circuit open Overview: Write up for the Related Sensor/Actuator or system:- Pre-Check Points: NO Trouble Shooting:- Below given flowcharts guides to troubleshoot the fault: ISO Code B1C56-13 Customer Symptom No audible audio output from Right subwoofer. Fault Effects (On Vehicle) No audible audio output from Right subwoofer. Lamp Status (If Any) No Fault Detection Condition 5. No audible audio output from Right subwoofer. 6. This DTC gets logged when connection between Right subwoofer and Head Unit is open. Normal Operating Condition When any media/radio source is played from Head Unit, audio output is heard from car speakers and subwoofer. Probable Trouble Area • Wiring harness between HU and subwoofer • HU Connector and connector terminals • subwoofer connector and its terminals • Intermittent connector and their terminal Healing Condition None
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