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. Check for the negative response ID and Go to step 1 4 Read the vehicle parameter - Battery cooling pump PWM Duty cycle (DID No: 3437) Check whether value is 93. Let the pump to run for 1min and Go to step 5. Go to step 1 5 Check if pump is running. If pump stops abruptly, go to step 1. Repeat the process 3 times Check if pump is running okay If the pump is following the request, conclude that Issue is resolved Replace BCS Pump 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: Component Location & Image:
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