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: 753 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. connector or wiring harness 4 Are there any pins backed out from the EMS ECU Connector Rectify/Replace Connectors Go to Next Step 5 Measure the Valve Coil Inductance value and check whether it is above than 120 mH at 100 HZ. Replace Valve Go to Next Step 6 Measure the fly-back voltage appearing at ECM pin A069 when Valve is turned Off. Is the voltage > 20 V? Replace Valve Go to Next Step 6 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 forEGr cooler bypass valve. Test shall be successful. Circuit Schematic:
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