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. 3 If there are any inline connectors, remove each of them Check if there is continuity between chassis and LSD pin of consecutive connectors Problem in wiring between the inline connectors Action: change LV wiring harness connector and repeat step 3 Go to Step 4 4 Check if chassis is short with Reverse Lamp enable pin Check if there is continuity between chassis and LSD pin in harness side VCU connector Problem is in VCU side LV wiring harness connector Action: change LV wiring harness connector and repeat step 4 Go to step 5 5 Remove the VCU connector. Check if there is a continuity between LSD pin K36 of VCU and the chassis Problem in VCU connector or VCU. (Change VCU connector or VCU) Action: Go to step 5 DTC’s confirmation: - After rectification, send Clear DTC command by using TML diagnostic tool. Ensure no DTC is in defect/ confirmed state before handing over to the customer. Circuit Schematic Diagram:
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