X104 MCE Instrument Cluster DTC Troubleshooting Data Version: 1.4 Date: 14-Dec-19 Author: Muni Balaji / Jeeva Raj Page: 24 of 135 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. 2. Check Fuel lines for Pinch/Cut. 3. Check ECU & Sensor pins for oxidation, bending & damage. 4. Check and ensure Fuel Sensor is giving linear Resistance output w.r.to the Fuel level. 5. Check Sensor resistance on Pin no. J1-11(FLS i/p) & J1-24(FLS Gnd) of the wired connector, whether it is according to the design specifications. Trouble Shooting:- DTC’s confirmation:- After rectification, ensure the following points before handing over the system to the customer. 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 B1909 -15 is present Is DTC B1909-15 is Present? Check for continuity between Pin No.J1-1(Batt) & J1-11(FLS input) of ECU Connector or FLS is Open Circuited. Is STB or Open present? FLS input is Short Circuit to Ground. Rectify Fault at wiring Harness & wait for 20sec to recover the fault. Clear the DTC & In low-end variant vehicle check the function of Fuel Bars change on LCD display. & In high-end variant vehicle check the change in fuel level in Fuel bars. Clear the DTC from the ECU memory. Turn Ignition OFF & ON. In low-end variant vehicle check the function of Fuel Bars change on LCD display. & In high-end variant vehicle check the change in fuel level in Fuel bars. Stop Stop YES NO YES NO Stop
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