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

Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 205 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 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:- Fig:77 Driver Knee Airbag Pin No. Pin Name Description 12 CAN_H CAN High 11 CAN_L CAN Low 6 A_GND Common Switch GND 1 V bat Supply Voltage Battery CHAMBER A + V 12 Battery A15 CAN L Ignition Switch CAN H A1 A6 - RESTRAINTS CONTROL MODULE Driver Knee Airbag A11 A12 Fuse 10A B23 B24 KA1FD- KA1FD+ Vbat