X104 CNG (Nexon) 4” Instrument Cluster DTC Troubleshooting Data Version: 2.0 Date: 19-August-24 Author: Suraj Shivsharan Page: 62 of 160 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 B1937 -31 is present Is DTC B1937-31 is Present? Check for continuity of CAN lines between IPC & BCM / PEPS. Check BCM / PEPS power supply & working properly. Is problem with BCM / PEPS? CAN communication or BCM / PEPS ECU is not working properly. Rectify Fault at wiring Harness to recover the fault. Clear the DTC & verify the function of Odometer on LCD display by running the vehicle for some distance. Clear the DTC from the ECU memory. Turn Ignition OFF & ON. Check whether the same DTC is coming again or not. Stop Stop YES NO YES NO Stop
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