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

Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 62 of 648 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. SRS / Airbag ECU AB12 DTC Troubleshooting Guide Version: 2.0 Date: 21-June-2021 Troubleshooting:- DTC’s confirmation:- After rectification, ensure the following points using TML diagnostic tool before handing over to customer. 1. Clear the DTC’s & make sure no DTC’s are present for Airbag system 2. Check whether any new DTC’s are getting qualified for repeated cranking. 3. Ensure the Airbag Warning Lamp Indication is continuously ON in Instrument Cluster for 3 seconds after Ignition ON 4. Ensure the Airbag Warning Lamp Indication goes OFF after 3 seconds from Ignition ON. IS DTC PRESENT? CLEAR DTC . TURN OFF & ON IGNITION. AND CHECK FOR DTC’s ( at least ). to 3 times 2 IS DTC STILL PRESENT ? 1. READ EXISTING AIRBAG ECU SYSTEM CONFIGURATION USING EOL or SERVICE TOOL. 2. VERIFY WHETHER T HE VEHICLE IS HAVING THE CORRECT AIRBAG ECU SYSTEM CONFIGURATION AS PER THE VC? IS CONFIG. CORRECT ? WRITE THE CORRECT SYSTEM CONFIGURATION IN A IR B AG ECU USING EOL or SERVICE TOOL YE S NO NO YES NO YES TURN OFF & ON THE IGNITION & CHECK FOR DTC’s IS DTC PRESENT? NO STOP RE - CONNECT THE ECU & W/H MODULE IN THE VEHICLE YES TURN ON IGNITION. CONNECT THE DIAGNOSTIC TOOL AND CHECK FOR DTC’s START B0028-55