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

Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 522 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 U1006-49:- Control Module Internal - internal electronic failure ISO Code U1006-49 Customer Symptom SRS Warning Lamp continuously ON in Instrument Cluster. Fault Effects (On Vehicle) Crash detection performance is degraded. Firing of any devices is not guaranteed & none of the external device monitoring is guaranteed. Lamp Status (If Any) SRS Warning Lamp continuously ON in Instrument Cluster. Fault Detection Condition This fault gets logged due to an internal failure in Airbag ECU Normal Operating Condition Internal electronic failure should not be present. Probable Trouble Area Internal electronic failure of Airbag ECU. Healing Condition Replace the Airbag ECU with the new one (ensure the correct configuration as per VC). Report to BOSCH. Component Details:- (Refer Annexure 2 for Mounting Location of AB12 Airbag ECU) Airbag ECU : - It is fitted in the floor of central console in the car. The Airbag Electronic Control Unit (ECU) controls the deployment system to allow an appropriate igniting of the Airbags and belt pre-tensioners to restrain the driver and passengers Preliminary Checks:- 1. Check Battery Voltage (12 V & above) 2. Check for any faults in Airbag Warning Lamp indication in Instrument Cluster. 3. Ensure the proper locking of Airbag ECU wiring harness connectors in the vehicle by the locking sound. Troubleshooting:-