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 – DTC Troubleshooting Guide Version: 15.0 Date: 05-December-2017 Prepared by:Airbag CoC Review & Approved by:Sanjeev VM Page: 20 of 548 TURN ON IGNITION. CONNECT THE DIAGNOSTIC TOOL AND CHECK FOR DTC’s IS DTC PRESENT? CLEAR DTC . TURN OFF & ON IGNITION & CHECK FOR DTC’s at ( least 2 to 3 times) IS DTC STILL PRESENT ? TURN OFF IGNTION. AND REPLACE AIRBAG WIRING HARNESS WITH A NEW ONE . YES NO NO YES NO TURN OFF & ON IGNITION . CLEAR DTC’s & CHECK FOR DTC’s IS DTC PRESENT? NO TURN ON IGNITION. CLEAR DTC’s & CHE CK FOR DTC’s. STOP CONNECT THE AIRBAG ECU, W/H & DRIVER AIRBAG MODULE IN VEHICLE 1. TURN OFF IGNITION. 2. REPLACE THE AIRBAG ECU WITH A NEW ONE. YES IS DTC STILL PRESENT? YES START B0 0 01 2 B :: Driver Frontal Stage 1 Deployment Control signal cross coupled .
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