TIAGO

TIAGO AMT Gasoline

DTC Troubleshooting Guide

Version: 2.0

Date: 06-06-2016

Author: Sathi/Anupama

Page: 91 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.

Are any GSL Sensor Signal Pins Short circuited to

GND/Battery? Check for inter-short among themselves

also. (check pins 17, 15, 13 and 11 at TCU 28 pin

connector)

Repair the harness

as per the schematic Go to Step 7

Check Ignition and ground connections on Lever connector

(pin 3 and pin 1 respectively on lever 6pin connector), are

they OK?

Go to Step 8

Repair the harness

as per the

schematic

Fault Still Persists?

Replace GSL lever,

if fault persists

Replace TCU

Follow the steps

again for

reconfirmation

the following points by referring TCU parameters using TML diagnostic tool

before handing over to customer.

After key ON with TML diagnostic tool connected, move the lever to each position and check corresponding position is

correctly displayed in the tool.

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: