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: 162 of 244 DTC’s confirmation:- After rectification, ensure the following points before handing over the system to the customer. a) Rear Defog request is change from ON to OFF or vice versa when requested. Circuit Schematic Diagram:- “Refer the circuit schematics from the tool” Component Location & Image:- Is DTC B1F38 -23 is Present? Check for Rear Defog Request Button functionality. Check the Rear Defog Request shall bechange by pressing Rear Defog button Is Rear Defog button stucked? Check and lubricate switch if still the Rear Defog button is stucked then replace control panel. Clear the DTC from the ECU memory. Turn Ignition OFF & ON. Check the Rear Defog Request shall bechange by pressing Rear Defog button Stop Stop NO YES NO
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