Gravitas FATC Gen 3 DTC Troubleshooting Data Version: 1.0 Date: 15-July-2023 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: 156 of 301 B1F4D-23:- Air Distribution Request Button-Signal Stuck Low Overview:- ISO Code B1F4D – 23 Customer Symptom Air Distribution Request Buttoncannot be manually selected Fault Effects (On Vehicle) Air Distribution Request Button is stuck and mode can’t be changed. Lamp Status (If Any) NA Fault Detection Condition Air Distribution Request Button -Signal Stuck Low Normal Operating Condition The mode can be changed by pressing Air Distribution button. Probable Trouble Area Mode switch component failure. Healing Condition NA Component Details: Air Distribution Button is shown in above image. This button used to change the Mode. 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
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