NEXON NEW MCE-2 DCT BS VI DTC Troubleshooting Guide Version: 1.0 Date: 16-06-2023 Author: Akash/Rahul Page:614 of 645 Copyright ©TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. 1 Check Gear shifting at engine ON condition Press brake, move lever from Park position to Reverse, Neutral, Drive and manual. a)Reverse gear engaged b) 1st gear engaged in manual mode and tip up requested then second gear engaged. Above a & b condition should be monitored on cluster. If successfully shifting for a number of times then HCU system is OK. 2 TCU ignition, battery supply & TCU ground, vehicle CAN_High & CAN_Low Available on fuse box in engine compartment, Check ground Pin 3 of TCU 3 CAN Line fault CAN H and CAN L continuity and resistance 1] Check CAN High and CAN Low connection short or open. 2] Check resistance between pin number 14 and 15 of TCU connector It should be 60 ohm CAN Bus Architecture &Network Topology
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