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. Action: replace WH 4. Remove the VCU connector. Check if there is a continuity between A02 Pin No. of VCU and the ground (Chassis). Problem in VCU connector or VCU. (Change VCU connector or VCU) TBD Action: Go to step 4 Go to step 5 5. Observe the pin on the VCU side Check for pin backout on the VCU side Action: Replace the VCU and go to step 5 Problem is in wiring harness between 3 in 1 combo-PDU and VCU Action: replace WH DTC’s confirmation: - After rectification, send Clear the DTC command by using TML diagnostic tool. Ensure no DTC is in defect/ confirmed state before handing over to customer. Circuit Schematic Diagram:
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