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

Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 382 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 TURN ON IGNITION. CONNECT THE DIAGNOSTIC TOOL AND CHECK FOR DTC’s IS DTC PRESENT? CLEAR DTC & CHECK FOR DTC’s IS DTC STILL PRESENT ? 1. TURN OFF IGN, REMOVE PASSENGER FIS SENSOR CONNECTOR FROM VEHICLE W/H. 2. TURN ON IGNITION . CLEAR DTC’s & CHECK FOR DTC’s. IS DTC B 1 00 F - 1 2 PRESENT? REPLACE THE PASSENGER FIS YES NO NO YES NO YES TURN OFF & ON THE IGNITION & CHECK FOR DTC’s IS DTC S TILL PRESENT? NO CHECK WHETHER THE VOLTAGE AT O UT P UT PINS OF W/H W.R.T VEHICLE GROUND IS IN THE RANGE OF 10 TO V 12 STOP RE - CONNECT THE ECU, PASSENGER FIS & W/H MODULE IN THE VEHICLE NO YES REPLACE THE PASSENGER FIS SENSOR IS VOLTAGE IS IN 10 T0 12 V? REPLACE AIRBAG ECU WITH A NEW ONE. YES YES NO 1. TURN OFF IGN. REPLACE AIRBAG W/H. 2. CONNECT THE AIRBAG ECU, W/H & PASSENGER FIS IN VEHICLE. 3. TURN ON IGNITION. CLEAR DTC’s & CHECK FOR DTC’s. IS DTC B 1 00 F - PRESENT? 12 START B 1 0 0 F 1 2 :: Frontal Impact Passenger S ensor circuit short to battery . B100F-12:- Frontal Impact Right Sensor Short to Battery