TML Gen3 IVI DTC Troubleshooting guide Version: 0.4 Draft Date: 04-Aug-23 Author: Hemant Mitra Page: 281 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. B1C51-13: Left Rear Tweeter Assembly Output Power / Left Rear Tweeter Assembly Input Signal Overview: Write up for the Related Sensor/Actuator or system:- Pre-Check Points: Trouble Shooting:- Below given flowcharts guides to troubleshoot the fault: ISO Code B1C51-13 Customer Symptom No audible audio output from left rear tweeter. Fault Effects (On Vehicle) No audible audio output from left rear tweeter. Lamp Status (If Any) No Fault Detection Condition 1. No audible audio output from left rear tweeter. 2. This DTC gets logged when connection between left rear tweeter 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 tweeters. Probable Trouble Area • Wiring harness between HU and tweeters • HU Connector and connector terminals • Tweeter connector and its terminals • Intermittent connector and their terminal Healing Condition None
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