TIGOR AMT

TIAGO/TIGOR AMT Gasoline

DTC Troubleshooting Guide

Version: 4.0

Date: 18-04-2017

Author: Sathi/Anupama

Page: 289 of 427

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.

respectively, Are electrical connections

OK?

connections as per the

circuit schematic

Using TCU diagnostic tool, initiate a

hydraulic pump activation routine and

monitor the hydraulic pressure, does the

pump turn ON audibly and hydraulic

pressure is 38-51 bar?

Clear the DTC and drive the

vehicle through all gears for 5

kms ,Recheck the above

steps if fault recurring

If No pump turn ON:

Go to Step 5

If Pump turns ON but no

pressure build up:

Go to Step 6

Check the Electric motor (refer DTC

P185C), are the connections and

grounding proper?

Replace the motor and

recheck step 3,

If problem persists Goto step

Rectify/Replace the motor

Replace parts in following order and re-

verify:

If the pump failed to turn ON:

1> Replace the Pump relay

2> Replace the TCU

3> Replace the Kit

If the pump turns ON but no Pressure build

up:

1> Check Kit oil, refill if necessary

2> Check for oil leakage / damage to

hydraulic pipes.

3> Replace the TCU

4> Replace the Kit

Recheck the above steps

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.



Read Engineering parameter “Misuse Error counter” through the diagnostic tool and keep as record



Drive the vehicle through all gears in both Automatic and Manual modes and ensure no DTC is active and

Transmission Fault Lamp is OFF.



Read Engineering parameter “Misuse Error counter” through the diagnostic tool and ensure it stays at last read value

before handing over vehicle to the customer.

Circuit Schematic Diagram:

Component Location & Image:-