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: 363 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. Adequate fuel available in Tank? Go to Next Step Refuel the vehicle and try to crank 2. Is there any air entry in the low pressure fuel line? Clear the same Go to Next Step 3. Is fuel filter clogged? Rectify / Replace Fuel filter Go to Next Step 4 Are there any leakages in the High Pressure fuel line? Rectify the leakages Go to Next Step 5 Check the connector of IMV fitted properly for proper Functionality of IMV. Is the fitment proper? Reconnect the Connector. Go to Next Step 6 Check for IMV related faults (P0251, P0252, P0253,P0254) If found refer rectification process for IMV fault Go to Next Step 7 Check for Rail pressure (HP) sensor faults (P0192, P0193) if present uses the rectification process of P0192; P0193 fault Go to Next Step 8 Are there any pins backed out from the EMS ECU Connector? Check ECU pins and connector if found faulty Rectify/Replace Connectors Go to Next Step 9 Check the Injectors for mechanical damage Rectify / Replace Injectors Go to Next Step 10 Check HP circuit whether its faulty or not if problem identified refer HP circuit check and rectification procedure Go to Next Step 11 Check whether the HP pump is sucking fuel from Fuel Tank Go to Next Step Perform necessary repairs 12 Perform the leak detection test for leakages? Is Test result Negative Perform necessary repairs to arrest leakages Go to Next step 13 Fault Still Persists? Call the 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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