Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 9 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 B0073-2B:- Second Row Driver Seatbelt Pretensioner Deployment Control Signal cross coupled ...................599 B0073-55:- Second Row Driver Seatbelt Pretensioner Deployment Control not configured ..............................602 B0075-11:- Second Row Passenger Seatbelt Pretensioner Deployment Control circuit short to ground ..........605 B0075-12:- Second Row Passenger Seatbelt Pretensioner Deployment Control circuit short to battery...........608 B0075-1A:- Second Row Passenger Seatbelt Pretensioner Deployment Control circuit resistance below threshold ...............................................................................................................................................................612 B0075-1B:- Second Row Passenger Seatbelt Pretensioner Deployment Control circuit resistance above threshold ...............................................................................................................................................................615 B0075-2B:- Second Row Passenger Seatbelt Pretensioner Deployment Control Signal cross coupled ...........618 B0075-55:- Second Row Passenger Seatbelt Pretensioner Deployment Control not configured ......................621 B00D5-14:- Restraint System Passenger Airbag Indicator circuit short to ground or open ................................624 B00D5-55:- Restraint System Passenger Airbag Indicator not configured..........................................................627 B00D5-12:- Restraint System Passenger Airbag Indicator circuit short to battery..............................................631 B100B-12:- Passenger Deactivation Switch circuit short to battery ....................................................................635 B100B-1A:- Passenger Deactivation Switch circuit resistance below threshold .................................................638 B100B-1B:- Passenger Deactivation Switch circuit resistance above threshold.................................................642 B100B-2B:- Passenger Deactivation Switch Signal cross coupled .....................................................................646 B100B-55:- Passenger Deactivation Switch not configured ................................................................................649 B100B-1F:- Passenger Deactivation Switch circuit Intermittent ..........................................................................653 Appendix 1 – Masking Status of DTC’s ................................................................................................................656 Appendix 2 – Reading Input Output Resistance value using Service tool ..........................................................662 Annexure 1 – General Instructions to handle Airbag ECU and its Components .................................................664 Annexure 2 – Mounting Location of AB12 Airbag ECU .......................................................................................666
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