Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 488 of 668 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: 3.0 Date: 05-June-2023 Schematic shown below for illustration Battery>>>>>Fuse>>>>Relay>>>>>>>Sensor/Actuator>>>>>ECU CHAMBER A 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 15 GND Power GND CHAMBER B Pin No. Pin Name Description 3 BLRC Rear middle seat belt buckle switch Please refer Airbag ECU Pin Assignment for more details. Inspection Method: - N.A. + 12 V Battery A15 CAN L Igniti on Switch CAN H A1 A6 - RESTRAINTS CONTROL MODULE Rear Middle Seatbelt Buckle Switch A11 A12 Fuse 10A B3 BLRC V bat
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