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

Prepared by: Airbag COC Review Approved by: Sanjeev VM Page: 141 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 Troubleshooting:- DTC’s confirmation:- After rectification, ensure the following points using TML diagnostic tool before handing over to customer. 1. Clear the DTC’s & make sure no DTC’s are present for Airbag system 2. Check whether any new DTC’s are getting qualified for repeated cranking. 3. Ensure the Airbag Warning Lamp Indication is continuously ON in Instrument Cluster for 3 seconds after Ignition ON 4. Ensure the Airbag Warning Lamp Indication goes OFF after 3 seconds from Ignition ON. IS DTC PRESENT? CLEAR DTC ’s . TURN OFF & ON IGNITION . CHECK FOR DTC’s (2 t o 3 times) IS DTC STILL PRESENT ? 1. REPLACE THE PSP SENSOR. 2. TURN OFF & ON THE IGN ITION. 3. CLEAR DTC’s 4. CHECK WHETHER THE DTC IS STILL PRESENT. IS DTC PRESENT? REPLACE THE ECU WITH A NEW ONE YES NO NO YES YES NO TURN OFF & ON IGNITION . CL EAR DTC & CHECK FOR DTC’s IS DTC PRESENT? NO STOP CONNECT THE ECU , PSP SENSOR & W/H MODULE IN THE VEHICLE YES START B100D-64:- Right Side Peripheral sensor signal plausibility failure TURN ON IGNITION. CONNECT THE DIAGNOSTIC TOOL AND CHECK FOR DTC’s