Nexon EV Instrument Cluster DTC Troubleshooting Data Version: 1.1 Date: 13-July-2021 Author: Deepak Pujari Page: 29 of 108 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 & VICM. Check VICM power supply & working properly. Is problem with VICM? CAN communication or VICM ECU is not working properly. Rectify Fault at wiring Harness to recover the fault. Clear the DTC & verify the function of Odometer on TFT 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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