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: 26 of 301 Probable Trouble Area Either or both Motor drive lines is open circuited (Can be detected only when motor movement is requested) 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) Read ECU parameter Target Position of Driver Temperature Door Flap and Driver Temperature Door flap Position (Internal Value) for actual and target position of Actuator Trouble Shooting:-
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