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

Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 338 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 IS DTC STILL PRESENT ? 1. TURN OFF IGN, REMOVE DRIVER F IS SENSOR CONNECTOR FROM VEHICLE W/H. 2. TURN ON IGNITION . CLEAR DTC’s & CHECK FOR DTC’s. IS DTC B 1 00 E - 1 2 PRESENT? REPLACE THE DRIVER FIS YES NO NO YES NO YES TURN OFF & ON THE IGNITION & CHECK FOR DTC’s IS DTC PRESENT? NO CHECK WHETHER THE VOLTAGE A T O UT P UT PINS OF W/H W.R.T VEHICLE GROUND IS IN THE RANGE OF 10 TO 12 V STOP RE - CONNECT THE ECU, SENSOR & W/H MODULE IN THE VEHICLE NO YES REPLACE THE DRIVER FIS SENSOR IS VOLTAGE IS IN 10 T0 12 V? REPLACE AIRBA G ECU WITH A NEW ONE. YES YES NO 1. TURN OFF IGN. REPLACE AIRBAG W/H. 2. CONNECT THE AIRBAG ECU, W/H & DRIVER FIS IN VEHICLE. 3. TURN ON IGNITION. CLEAR DTC’s & CHECK FOR DTC’s. IS DTC B 1 00 E - 12 PRESENT? START B 1 0 0 E 1 2 :: Frontal Impact Driver Sensor circuit short to battery . B100E-12:- Frontal Impact Left Sensor Circuit Short to Battery