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: 164 of 244 Fault Effects (On Vehicle) The Fresh Air / Recirc switch is stuck and air inlet door is not changing it state. Lamp Status (If Any) NA Fault Detection Condition Fresh Air / Recirc Request Button -Signal Stuck Low Normal Operating Condition The Recirc request push button allows the user to manually choose the position of the air inlet door, as a manually selected two state function, the air inlet door will be either fresh air (Fresh) or in-cabin recirculation (Recirc). Probable Trouble Area Mode switch component failure. Healing Condition NA Component Details: Fresh Air / Recirc switch Button is shown in above image. The user shall be able to choose the position of the air inlet door by pressing Fresh Air / Recirc Request Button. Preliminary Checks: Switch On the IGN & perform the following check. 1) Connect the Diagnostics tool & check the DTC fault code 2) If the fault code exists, refer the corrective actions Trouble Shooting:- Turn ON Ignition. Connect the TML Diagnostic Tool. Check the status of DTC’s (Memorized/Current) Record the DTC & Clear DTC’s Turn Ignition OFF & ON Verify If DTC B1F39 – 23 is present
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