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: 50 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 for electrical continuity between ECU to AMF connector as per circuit schematic Go to step 2 Rectify wiring harness connections as per schematic 2. Are there any pins damaged at EMS ECU Connector Replace the connector or wiring harness Go to step 3 3. Are there any pins backed out from the EMS ECU Connector Rectify/Replace Connectors Go to Step 4 4. Check for charge air leakage Got to step 5 Rectify the fault 5. Check for AMF sensor functionality and also check whether the EMS ECU pin number K76 is short to ground Repair the leakages Go to Step 6 6. If fault still persists Call Hotline Repeat above procedure for reconfirmation DTC’s confirmation: After rectification, Test Drive the vehicle for 2 KM and ensure that no DTC’s are logged in ECM. Call Hot Line and check whether the fault is rectified or not. Circuit Schematic: +12V Supply EMS ECU
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