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TIAGO/TIGOR AMT Gasoline
DTC Troubleshooting Guide
Version: 4.0
Date: 18-04-2017
Author: Sathi/Anupama
Page: 66 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.
On first occurrence, clear the DTC and drive the vehicle for 2-3 kms, read the DTC again. On fault confirmed again, follow
below steps.
Step Checks
IF YES
IF NO
1.
Unmount and remove the TCU from the valve
body. Inspect the condition of the Hydraulic
sensor (OPS) (refer fig below). Is the sensor
and pins visibly undamaged?
Go to Step 2
Replace the sensor/TCU.
2.
Inspect the sensor connector on TCU main
board for loose fit/disconnection/pin damage. Is
the sensor connected properly?
Go to Step 3
Fit the sensor back
properly.
If sensor connector
damage then replace the
TCU.
3. Replace the TCU
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: