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: 360 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. Trouble Shooting: Step Checks IF YES IF NO 1. Check whether the EMS ECU is getting power supply and GND Go to step 2 Rectify wiring Harness as per the schematic if found faulty 2. Check whether the Main relay is faulty or not also check Rail pressure sensor connector is properly connected to the IMV or not Rectify/Replace if found main relay is faulty Go to Next Step 3 3. Check if there is any mud, dirt, foreign particle accumulation on the connector Remove dirt and foreign particle accumulated on the connector Go to Next Step 4 4 Are there any pins damaged at EMS ECU Connector? Also check electrical continuity of wiring harness between ECU and rail pressure sensor as per circuit schematics. Rectify the connection Go to Next Step 5 Fault Still Persists?? Fault still persists then Call Hot line. Follow the steps again for reconfirmation DTC’s confirmation: • Check the errors at Ignition ON, engine running @ Idle & Fly-up with different vehicle speeds also • If error present, then rectify the errors. Confirm that there is not error logged present before handed over • vehicle to customer.
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