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. positive pin and EVCU positive pin side positive pin C776B-A67 Action: Repair harness 3. Check for continuity between Vehicle Inlet Motor Lock negative pin and EVCU negative pin Check for continuity between Vehicle Inlet Motor Lock negative pin C448-1 and EVCU side negative pin C776B-A88 Problem is in Vehicle Inlet Motor Lock Action: Replace Actuator and try Fast Charging again Problem is in wiring harness between Vehicle Inlet Motor Lock and EVCU negative pins Action: Repair harness DTC’s confirmation: - After rectification, read DTC using TML diagnostic tool and Clear the DTC Ensure no DTC is in defect/confirmed state before handing over to customer. Circuit Schematic Diagram: Component Location: - Vehicle charging inlet, DC Fast charging socket of vehicle.
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