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: 56 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 Vbatt or not 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
RkJQdWJsaXNoZXIy MTIwNTUz