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

Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 307 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 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. Circuit Schematic Diagram:- Schematic shown below for illustration Battery>>>>>Fuse>>>>Relay>>>>>>>Sensor/Actuator>>>>>ECU Component Location & Image:- Passenger Airbag is located inside the dashboard in front of the co-driver or passenger seat Fig:113 Passenger Airbag Module front side view Fig:114 Passenger Airbag Module + V 12 Battery A15 CAN L Ignition Switch CAN H A1 A6 - RESTRAINTS CONTROL MODULE Passenger Airbag A11 A12 Fuse 10A A22 A21 AB1FP+ AB1FP - Vbat