TML Gen3 IVI DTC Troubleshooting guide Version: 0.4 Draft Date: 04-Aug-23 Author: Hemant Mitra Page: 272 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-56: TCM-HU TLS certificate-Invalid/incomplete configuration Overview: Trouble Shooting: - Below given flowcharts guides to troubleshoot the fault: ISO Code B1C6A-56 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 expired 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 expired in HU Healing Condition To Fix the issue, the “TCM-HU TLS certificate” is required to be updated in HU
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