NEXON 2.0 EV DTC Troubleshooting Document for VCU Version: 1.0 draft Date: 31-Jan-2022 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. connector C776B pin 101. DC-DC Converter signal connector C492 pin 2 (CAN L) and VCU connector C776B pin 102. Action: Replace the pins/ terminals or LV harness and go to step 1 DTC’s confirmation: - After rectification, ensure the following points by referring to DC-DC Converter DID list using TML diagnostic tool before handing over to customer. 1. Check if DC-DC Converter output is 14V at LV battery terminals after crank is ON. 2. Check whether the Tell-tale is off.
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