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: 660 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 there any rust/oxidization / Sulphation observed on Battery Terminals Clean the Rust or repair. Go to Step 2 2 Is Alternator and Rectifiers functioning Go to Step 3 Repair / Replace 3 Load Dump Observed? Rectify Go to Step 4 4 Is Rectifiers in Alternator functioning properly? Repair / Replace Go to Step 5 5 Fault Still Persists? Replace EMS ECU and if fault still persists then replace Battery Follow the steps 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. Check Battery voltage parameter value.. it should be in range of 12.5 to 14.5 volts