TML Gen3 IVI DTC Troubleshooting guide Version: 0.4 Draft Date: 04-Aug-23 Author: Hemant Mitra Page: 270 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. B1C6A-55: TCM-HU TLS certificate-not configured. Overview: Trouble Shooting: - Below given flowcharts guides to troubleshoot the fault: ISO Code B1C6A-55 Customer Symptom User is unable access telematics feature, share my location, Alexa, connected car voice commands, e-call display on HMI and FOTA Fault Effects (On Vehicle) No Lamp Status (If Any) No Fault Detection Condition 1. User is unable access telematics feature, share my location, Alexa, connected car voice commands, e-call display on HMI and FOTA 2. This DTC gets logged when “TCM-HU TLS certificate” is not available in HU. Normal Operating Condition User can access telematics feature, share my location, Alexa, connected car voice commands, e-call display on HMI and FOTA Probable Trouble Area “TCM-HU TLS certificate” is not available in HU Healing Condition To Fix the issue, the “TCM-HU TLS” certificate is required to be updated in HU
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