Nexon_MCE2_7inch_Digital Instrument Cluster_DTC Trouble Shooting Data Version: 1.0 Date: 09-May-2023 Author: Suraj Patil / Rajesh Patil Page: 144 of 167 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 B193A -15 is present Is DTC B193A-15 is Present? Check for continuity between Pin No.J1-1 (Batt) & J1-29 (P/R/N/D output) of ECU side. Connector. Is Continuity Present? P/R/N/D o/p Short Circuit to Battery or open. Check the CAN signal o/p transmitted from IC ECU. Rectify Fault at wiring Harness & check for the PWM output. Clear the DTC & verify the function of dimming o/p signal from IC ECU. Clear the DTC from the ECU memory. Turn Ignition OFF & ON. Check the function of dimming o/p signal from IC ECU. YES NO YES NO Stop
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