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: 14.0 Date: 14-February-2017 Prepared by:Airbag COC Review & Approved by:Sanjeev VM Page: 359 of 548 U0422-81 Invalid Data Received from BCM- invalid serial data received DTC’s confirmation:- After rectification, ensure the following points using TML diagnostic tool before handing over to customer. e) Clear the DTC’s & make sure no DTC’s are present for Airbag system f) Check whether any new DTC’s are getting qualified for repeated cranking. g) Ensure the Airbag Warning Lamp Indication is continuously ON in Instrument Cluster for 4 seconds after Ignition ON h) Ensure the Airbag Warning Lamp Indication goes OFF after 4 seconds from Ignition ON.
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