TIAGO/TIGOR AMT Gasoline DTC Troubleshooting Guide Version: 4.0 Date: 18-04-2017 Author: Sathi/Anupama Page: 354 of 427 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. 3 a> Run IO control on Clutch, shift and Gear Electrovalves, if any Control is failing, rectify referring respective DTC. In case problem not located, next step b b> Unmount the TCU from the valve body and investigate any loose contacts/damaged valves/ sensor connectors. Is any kit component damaged? c> Disassemble kit from transmission, check for correct kit assembly and inspect transmission components for any obstruction to actuator movements/damaged teeth/synchro rings/forks etc. Is problem located in transmission? Replace/Rectify the problematic transmission component Replace the transmission (including kit) 4 a> Recheck list mentioned in point 2 of “Preliminary Checks” and check for any missing input from the list (for example brake switch problem, low battery voltage etc) Is problem located? Rectify the problem Replace the relevant component 5 a>Check the AMT Clutch lever interface b>Disassemble Clutch assembly, check for correct clutch assembly and inspect clutch for any obstruction to actuator movements/incorrect clutch stroke/damaged beleville, springs/ etc. b> Mechanical damage to the clutch Is problem located in clutch assembly? Replace/Rectify the problematic clutch component Recheck the above steps Replace the relevant component 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. After key ON with TML TCU diagnostic tool connected, monitor the “Selflearned Mask” and confirm that variable “Successful EOL Executed” is TRUE. 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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