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. 3 Change the duty cycle value – actuator command- Traction cooling pump PWM Duty cycle to 93 % (0x 5D hex) Confirm whether positive response is received. Go to step 4 Ensure the preconditions to be OK (Vehicle is in Ignition mode; vehicle speed is 0 and LV battery Voltage is >11 V) Check for the negative response ID and Go to step 1 4 Read the vehicle parameter - Traction cooling pump PWM Duty cycle (DID No: 3439) 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 Pump DTC’s confirmation: - After rectification, ensure the following points by referring to VCU DID list using TML diagnostic tool before handing over to customer. Circuit Schematic Diagram:
RkJQdWJsaXNoZXIy MTIwNTUz