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: 450 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. Are any of faults – P0203,P0268/267 appears Follow their respective rectification procedure and rectify those faults Go to Step 2 2. Are any of following faults appears – P0351, P0352, P0353 Follow their respective rectification procedure and rectify those faults Go to step 3 3 Are Ignition Coil B, HT Cables, Spark plugs properly functional Rectify/Replace the faulty Components Go to step 4 4 Faulty/Clogged Injector cylinder 3? Replace/Clean Injectors Go to step 5 5 Compression Pressure Low? Rectify the faulty component Go to Step 6 6 Improper Valve Clearance? Rectify according to specification Go to step 7 7 Improper Valve Timing? Correct valve timing through calibration Go to Step 8 8 Any faults related to Engine Coolant Temperature Sensor or faulty Sensor? Rectify/Replace Sensor Go to Step 9 9 Is EMS ECU connector tight? Go to step 10 Refit the connector tightly 10 If fault still persists? Replace the EMS ECU DTC’s confirmation:- After rectification, ensure the following points by referring engine parameters using TML diagnostic tool before handing over to customer. Recheck the fault, fault shall not re appear.