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: 59 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 Rectify/Replace if found main relay is faulty Go to step 3 3. Are there any pins damaged at EMS ECU Connector Replace the connector or wiring harness Go to step 4 4 Are there any pins backed out from the EMS ECU Connector Rectify/Replace Connectors Go to Step 5 5 Fault Still Persists Replace relay and then if Fault still persists then Replace the ECU Follow the steps again for reconfirmation DTC’s confirmation: • After rectification ensure the following before handing over to customer. • Check the Atmospheric pressure sensor reading at ignition key on, idle & fly up condition. • Clear the errors & confirm that no any errors present in ECU. Circuit Schematic: NA Component Location & Image:- Connector View & Information: - NA Atmospheric Pressure sensor
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