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. Step No. Description Check point If Yes If No 1. Examine the wiring connections to the sensor Check for LV loose connections and cuts Repair or replace the wiring harness Go to step 2 2. Check if any other DTC of P3017 is present DTC present? Go to Step 3 Check if DTC related to and P3016 is present. Go to corresponding troubleshooting. 3. Remove the LV connector of sensor side and VCU side connector to check continuity Check if there is continuity between Vehicle inlet connector C448A Pin 2 and VCU connector C776 Pin K50 Go to Step 4 Problem is in the harness Action: Repair the harness and Go to step 3. 4. Check for any short in circuit Check if there is a continuity between C776 Pin K50 Pin No. of VCU and the LV battery or in Pin K50 and Chassis Problem is in the harness Action: Repair the harness and Go to step 4 Go to Step 5 5. Remove the Inline connectors and check continuity. Check end to end continuity considering in-line connectors C001UM, C001UF, C001EF, C001EM, C001RBM, C001RBF. (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 DTC absent? Problem resolved Go to step 2
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