{Osprey CCM} DTC Troubleshooting Data Version: 2.0 Date: 28-Jul-17 Author: ERC Page: 16 of 244 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. B1F3E-54:- Temperature Door Control Motor Calibration Fault;: ISO Code B1F3E-54 Customer Symptom No air temperature control (manual or automatic) Fault Effects (On Vehicle) The motor is blocked and its motion toward either end is not possible Lamp Status (If Any) NA Fault Detection Condition Temperature Door Control Motor Calibration fault Normal Operating Condition Air Temperature Drive Motor is Functional Probable Trouble Area Motor learning is not accomplished because of 1) Shorting of Motor drive to battery or ground 2) Motor is stuck while calibrating 3) System over/under voltage during calibration 4) Motor feedback fault short to battery or ground Healing Condition NA Component Details: The actuator controls the position of the temperature blend door based on the voltage signal from the FATC module. Potentiometer, inside the actuator, sends a feedback signal to the controller and controller cuts off the voltage signal coming from the controller when the required door position is achieved. 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 Trouble Shooting
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