TML Gen3 IVI DTC Troubleshooting guide Version: 0.4 Draft Date: 04-Aug-23 Author: Hemant Mitra Page: 99 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. B1C55-13: Channel 8 Speaker Assembly Output Power / Channel 8 Speaker 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 B1C55-13 Customer Symptom No audible audio output from Channel 8 speaker. Fault Effects (On Vehicle) No audible audio output from Channel 8 speaker. Lamp Status (If Any) No Fault Detection Condition 1. No audible audio output from Channel 8 speaker. 2. This DTC gets logged when connection between Channel 8 speaker 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. Probable Trouble Area 1. Wiring harness between HU and speakers 2. HU Connector and connector terminals 3. Speaker connector and its terminals 4. Intermittent connector and their terminal Healing Condition None
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