NEXON 3.0 EV DTC Troubleshooting Document for VCU Version: 2.0 Date: 22-Sep-2023 Copyright © TATA MOTORS Ltd. This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author. If VECU is powered up, VECU pin can get damaged during continuity check. 5. Remove the Inline connectors and check continuity. Check end to end continuity considering in-line connectors C001WBF, C001WBM, C001AJF, C001AJM, C001RAM, C001RAF. (Refer schematic for details and pin number. Connector all connections and check for DTC. Go to step 6 Problem is in the harness Action: Repair the harness and Go to step 5. 6. Ensure all connections are okay Switch vehicle ignition ON and read DTC. DTC absent? Problem resolved Go to step 2 DTC’s confirmation: - After rectification, read DTC by using TML diagnostic tool and Clear the DTC. Ensure no DTC is in defect/ confirmed state before handing over to customer. Circuit Schematic Diagram:
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