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: 916 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. Also check continuity from low speed fan Relay pin 1 to GND. the circuit 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 the ECM pin K037 is short circuited to ground Rectify the wiring harness connections as per the schematic 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 for Low Speed fan Relay. Test shall be successful. Circuit Schematic:
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