NEXON NEW MCE-2 DCT BS VI DTC Troubleshooting Guide Version: 1.0 Date: 16-06-2023 Author: Akash/Rahul Page:575 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 the engine controller, if this issue is reported. Diagnose the crank sensor input to EMS (Refer EMS service manual), is there a problem with crank sensor or crank sensor to EMS connection? Fix the problem on engine controller or engine speed sensor/speed sensor wiring harness. Go to step 2 2 If this issue is only reported in TCU, disconnect the vehicle side connector on TCU & connect it back again. Clear the DTC and check if the DTC does not come back. Go to step 3 3 If issue persists, check wiring harness towards TCU. If damaged, replace the vehicle side transmission wiring harness. Clear the DTC and check if the DTC does not come back. DTC’s confirmation:- After rectification, clear all DTC’s and ensure the following points by referring TCU parameters using TML diagnostic tool before handing over to customer. • Drive the vehicle through all gears in both Automatic and Manual modes. • Ensure no DTC is active and Transmission Fault Lamp is OFF. Circuit Schematic Diagram:- Component Location & Image:- Connector Location:-
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