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: 970 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. schematic. 3 Check whether the EMS pin A22 or A24 is short-circuited to Battery / Ground. Rectify the wiring harness connections as per the circuit schematic. Go to next step 4 Are there any pins damaged at EMS ECU Connector Replace the connector or wiring harness Go to Next Step 5 Are there any pins backed out from the EMS ECU Connector Rectify/Replace Connectors Go to Next Step 6 Fault Persists. Call Hotline Repeat the above steps for reconfirmation DTC’s confirmation: After rectification, Test Drive the vehicle for 2 KM and ensure that no DTC’s are logged in ECM. Incase the cylinder 2 injector or cylinder 3 injector replacement is needed, then perform below actions: 1. Perform IMA classification / Injector learning 2. “Reset Lambda sensor - 4.2.2 ‘Exchange of Injectors, Rail Pressure Sensor and MAF Sensor’ (LSU1 $ 02 05 XX) – Sub-function 02“. 3. “DPF injector reset (DPF5) – ‘Set EEPROM values for PFFlt_MassCalc Exchange of an emission relevant engine component’” Incase the EMS ECU replacement is needed, Check whether the old ECM is communicating or not. If Old EMS is communicating then perform actions specified in Sec. 4.1 of Component Replacement procedure document. If Old EMS is not communicating then perform actions specified in Sec. 4.2 of Component Replacement procedure document. Circuit Schematic:
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