Gravitas/SAFARI/X451/NEXON FATC DTC Troubleshooting Data Version: 1.1 Date: 28-Apr-2021 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. Author: ERC Page: 165 of 244 DTC’s confirmation:- After rectification, ensure the following points before handing over the system to the customer. a) Fresh Air / Recirc request is changing when requested. Is DTC B1F39 -23 is Present? Check for Fresh Air / RecircRequest Button functionality. Check the Fresh Air / Recircshall bechange by pressing Fresh Air / Recircbutton Is Fresh Air / Recircbutton stucked? Check and lubricate switch if still the Fresh Air / Recircbutton is stucked then replace control panel. Clear the DTC from the ECU memory. Turn Ignition OFF & ON. Check the Fresh Air / Recircshall bechange by pressing Fresh Air / Recircbutton Stop Stop YES NO YES NO
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