TML Gen3 IVI DTC Troubleshooting guide Version: 0.4 Draft Date: 04-Aug-23 Author: Hemant Mitra Page: 524 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 U100F -06 is present Is DTC U100F-06 is Present? Check for continuity between Connector A, Pin No.8 (Gnd) & connector A, pin no 11 of ECU Connector. Is Continuity Present? Ignition Input is Short Circuit to Ground and if there is mismatch of power mode between BCM & IC Rectify Fault at wiring Harness to recover the fault. Clear the DTC & verify the weather cluster is getting ON. If cluster is getting ON Try to read DTC’s from BCM to find out the root cause. Clear the DTC from the ECU memory. Turn Ignition OFF & ON. Check weather cluster is getting ON & functioning properly. Stop Stop YES NO YES NO Stop
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