TIAGO TIGOR BSVI - SERVICE MANUAL - DTC 24-12-2021

TATA BSVI Gasoline Program – EMS ECU Bosch DTC Troubleshooting Service Manual Version: 1.2 Date: 18-12-2019 Prepared By: Sunita Mandlik Checked By: Yeshwant Jadhav Approved By: Satish Kumar Document Part No: 2921 02 xxx xxxx Page: 827 of 1498 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. Is the Clutch Switch setting proper? Go to step 2 Correct the setting as per the clutch switch TML drawing 2. Is there continuity exists between Top Travel Input (10%) pin 3 and EMS ECU pin 118 && Top Travel Input (10%) clutch switch pin 3 and Ground. Go to step 3 Rectify the wiring harness connections as per the schematic 3. Is there continuity exists between Extended Travel Input (90%) pin 2 and EMS ECU pin 119 && Extended Travel Input (90%) pin 2 and Ground. Go to step 4 Rectify the wiring harness connections as per the schematic 4. Check whether EMS ECU pins 118 / 119 shorted to battery supply / Ground Go to step 5 Rectify the wiring harness connections as per the schematic 5 Are there any pins damaged at EMS ECU Connector Replace the connector or wiring harness Go to step 6 6 Are there any pins backed out from the EMS ECU Connector Rectify/Replace Connectors Go to Step 7 7 Is clutch switch connector damaged or pins got backed out Rectify/Replace Connectors Go to step 8 8 If fault still persists, then replace clutch switches and if fault still persists then replace EMS ECU. Follow the above procedure again for reconfirmation DTC’s confirmation:- After rectification, ensure the following points by referring engine parameters using TML diagnostic tool before handing over to customer. Drive the vehicle in different gears till vehicle speed reaches 70 Kmph and then check whether the fault is logged or not. If fault doesn’t get logged then confirm that fault gets rectified.