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

Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 11 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 SRS AB12 ECU Pin Assignment CHAMBER - A CHAMBER Pin No. P1 Description Chamber A 1 VBAT/VIGN Power Line, Ignition 2 CRO(AIO2) Crash Output 3 BLFP+PDM Belt Lock Front Passenger +Passenger Detection Mat 4 PADI PADI Lamp 5 BLFD+PDM Belt Lock Front Driver +Passenger Detection Mat 6 AGND Analog GND 7 UFSL- Front Left Sensor 8 UFSL+ Front Left Sensor 9 UFSR+ Front Right Sensor 10 UFSR- Front Right Sensor 11 CANL CAN_Low 12 CANH CAN_High 13 BLRD+PDM Belt Lock Rear Driver + Passenger Detection Mat 14 BLRP+PDM Belt Lock Rear Passenger + Passenger Detection Mat 15 GND Power GND 16 Reserve Aout Reserve Analog out 17 BT1FP- Belt Tensioner 1st stage Front Passenger Minus 18 BT1FP+ Belt Tensioner 1st stage Front Passenger Plus 19 BT1FD+ Belt Tensioner 1st stage Front Driver Plus 20 BT1FD- Belt Tensioner 1st stage Front Driver Minus 21 AB1FP- Airbag 1st Stage Front Passenger Minus 22 AB1FP+ Airbag 1st Stage Front Passenger Plus 23 AB1FD+ Airbag 1st Stage Front Driver Plus 24 AB1FD- Airbag 1st Stage Front Driver Minus