TATA BSVI Gasoline_Bifuel Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 1.9 Date: 24-01-2022 Prepared By: Veer K. Singh / Prudhvi B Varma Checked By: Yeshwant Jadhav Approved By: Sanjeev M. Document Part No: 2921 02 xxx xxxx Page: 960 of 1692 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 receiving supply and Ground Go to step 2 Rectify wiring harness connections as per schematic 2. Check whether the battery is healthy Go to step 3 Repair Battery 3 If fault still persists Replace EMS ECU Repeat above procedure for reconfirmation DTC’s confirmation:- After rectification, ensure the following points by referring engine parameters using TML diagnostic tool before handing over to customer. Replace EMS ECU and check whether the fault is rectified or not.
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