TML Gen3 IVI DTC Troubleshooting guide Version: 0.4 Draft Date: 04-Aug-23 Author: Hemant Mitra Page: 559 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. Trouble Shooting:- Turn ON Ignition. Connect the TML Diagnostic Tool. Check the status of DTC’s (Memorized/Current) Record the DTC & Clear DTC’s Turn Ignition OFF & ON Verify If DTC B193D -01 is present Is DTC B193D-01 is Present? Ensure the DCS switch is in CAN communication, check all other ECU’s TOD, IPC, ABS/ESP, and EMS is in CAN communication Is Continuity not Present? Rectify Fault at wiring Harness to recover the fault. Clear the DTC & verify the weather cluster is getting ON. If cluster is getting ON then check DCS LEDs are working properly. Read the DID 4676 and check which ECU not in communication or sending the Invalid data and rectify the fault accordingly, Clear the DTC and ensure all the Drive mode is able to select and the same is displayed in the cluster YES NO YES NO Stop
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