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. connector and VCU connector. Go to Step 2 PDU to VCU wiring harness Action: Replace wiring harness 2. Observe the pin on the VCU side Check for pin backout or Short to battery or short to ground in harness connecting VCU Problem is in VCU or VCU connector Action: Replace VCU Go to step 3 3. Check for Short to battery or short to ground on C813 Pin 2 of 3in1 combo side Check for pin backout or Short to battery or short to ground on 3in1 combo side Problem is in 3 in 1 combo unit Action: Refer 3 in 1 combo DTC troubleshooting document for more details NA DTC’s confirmation: - After rectification, ensure that DTC is not present in VCU memory using TML diagnostic tool before handing over to customer. Circuit Schematic Diagram: Component Location & Image: -
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