TIAGO

TIAGO AMT Gasoline

DTC Troubleshooting Guide

Version: 2.0

Date: 06-06-2016

Author: Sathi/Anupama

Page: 357 of 424

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.

Perform Ignition key ON-OFF (wait min 30

sec after key OFF), Is DTC P080A cleared?

Release vehicle to customer

after final drive test

Check ignition and battery

power and ground connections

of TCU (check toggling of ign

voltage with key ON-OFF).

If power healthy -Replace TCU

Recheck the above steps

Check ignition and battery power

connections of TCU (check toggling of

ignition voltage with key ON-OFF). Also

check CAN communication wires.

Is power and CAN communication healthy?

Go to step 5

Rectify the connections

a>with engine ON and slight vehicle pickup

in 1

gear, read through the diag. tool

rising values as vehicle is picked up from

rest. Any problem with clutch speed?

b> Observe Clutch speed with the diag. tool

keeping gearbox in neutral, is zero speed

observed?

c>Disassemble Clutch assembly, check for

correct clutch assembly and inspect clutch

for any obstruction to movements/incorrect

clutch stroke/damaged beleville, springs/

etc.

d> Mechanical damage to the clutch

e> Check the AMT Clutch lever interface

Is problem located in clutch assembly?

a>Replace clutch speed

sensor

b&c&d>Replace/Rectify the

problematic clutch

component

Recheck the above steps

Replace the transmission

(including kit)

Recheck the above steps

the following points by referring TCU parameters using TML diagnostic tool

before handing over to customer.

After key ON with TML TC

Kiss

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: -

Connector View & Information: -

Inspection Method: -