Q501 4 Cylinder MT Application DTC Troubleshooting Data Version: 0.1 Date: 21-Sep-2018 Prepared By: Mithi Prasad, Sarang Kulkarni, Manish Gupta Checked By: Yogesh Jadhav Approved By: Satish Kumar P Page: 749 of 1052 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. schematic. 4 Are there any pins damaged at EMS ECU Connector Replace the connector or wiring harness Go to Next Step 5 Are there any pins backed out from the EMS ECU Connector Rectify/Replace Connectors Go to Next Step 6 Check whether ECM pin A069 is shorted to Battery / Ground / Open circuited Rectify the wiring Harness Connections Go to Next Step. 7 Fault Persists. Call Hotline Repeat the above steps for reconfirmation DTC’s confirmation: After rectification, Test Drive the vehicle for 2 KM and ensure that no DTC’s are logged in ECM. Perform the IO / Actuator Test for EGR cooler bypass valve. Test shall be successful. Circuit Schematic:
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