TIGOR AMT

TIAGO/TIGOR AMT Gasoline DTC Troubleshooting Guide Version: 4.0 Date: 18-04-2017 Author: Sathi/Anupama Page: 318 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. 102. P062F- 08: TCU EEPROM– Grid Data Alteration Error Overview: ISO Code P062F- 08 Customer Symptom Transmission Fault Lamp ON No gearshifts No creeping Gearshift malfunctions Fault Effects (On Vehicle) No gearshifts No creeping Gearshift malfunctions Lamp Status (If Any) Transmission Fault Lamp ON Fault Detection Condition This fault gets detected during TCU power ON, if Grid data stored in EEPROM is found altered. Normal Operating Condition EEPROM integrity is valid Probable Trouble Area TCU damage Healing Condition Immediately after detection of valid EEPROM integrity Component Details: The Problem may occur due to an internal damage to TCU. Preliminary Checks: 1) Battery voltage 2) Check for damage or back out of pins at TCU connectors. 3) Check correct fitment of ground cable connections on vehicle chassis (tightness, corrosion of mounting bolts etc.) . Trouble Shooting:- Step Checks IF YES IF NO 1 Check Battery and Ignition supplies at pins 1,3and 5 respectively. Both are correct? Go to Step 2 rectify harness connections as per the circuit schematic 2 Is there any pin back out/damage/rust/oxidation observed on TCU Connector? Clean or repair or replace connector Go to Step 3 3 Fault Still Persists? Replace TCU Follow the steps again for reconfirmation 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: Component Location & Image:- Connector Location: - Connector View & Information: -