TML Gen3 IVI DTC Troubleshooting guide Version: 0.4 Draft Date: 04-Aug-23 Author: Hemant Mitra Page: 423 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. Is DTC B1909-15 is Present? Check for continuity between Connector A, Pin No.5 (Batt) & Connector C, Pin no 9 (FLS input) of ECU Connector or FLS is Open Circuited. Is STB or Open present? FLS input is Short Circuit to Battery. Rectify Fault at wiring Harness & wait for 20sec to recover the fault. Clear the DTC & Check the CAN signals transmitted by IPC & check the change in fuel level in Fuel bars. Clear the DTC from the ECU memory. Turn Ignition OFF & ON. Check the change in fuel level in Fuel bars. Stop Stop YES NO YES NO Stop
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