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: 3 of 301 Table of Contents B1F1B-11:- Solar Radiation Sensor Circuit - Circuit short to Ground; ------------------------------------------------ 5 B1F1B-15:- Solar Radiation Sensor Circuit - Circuit short to battery or open; ------------------------------------- 9 B1F23-11:- Evaporator Temperature Sensor Signal - Circuit Short to Ground; ---------------------------------- 11 B1F23-15:- Evaporator Temperature Sensor Signal - Circuit Short to Battery or Open; ---------------------- 14 B1F2D-11:- Driver side Air Temperature Motor Drive Line - Circuit Short to Ground; ------------------------- 18 B1F2D-12:- Driver side Air Temperature Motor Drive Line - Circuit Short to Battery;-------------------------- 22 B1F2D-13:- Driver side Air Temperature Motor Drive Line - Circuit Open; ----------------------------------------- 25 B1F56-11:- Co-Driver Air Temperature Motor Drive Line - Circuit Short to Ground; --------------------------- 29 B1F56-12:- Co-Driver Air Temperature Motor Drive Line - Circuit Short to Battery; ---------------------------- 33 B1F56-13:- Co-Driver Air Temperature Motor Drive Line - Circuit Open; ------------------------------------------- 37 B1F2E-11:- Air Distribution Motor Drive Line– Circuit short to Ground;-------------------------------------------- 41 B1F2E-12:- Air Distribution Motor Drive Line– Circuit short to Battery; -------------------------------------------- 45 B1F2E-13:- Air Distribution Motor Drive Line – Circuit Open; ---------------------------------------------------------- 50 B1F2C-11:- Fresh Air/RECIRC Motor Drive Line- Circuit Short to Ground; ---------------------------------------- 54 B1F2C-12:- Fresh Air/RECIRC Motor Drive Line- Circuit Short to Battery;----------------------------------------- 58 B1F2C-13:- Fresh Air/RECIRC Motor Drive Line- Circuit Open: -------------------------------------------------------- 62 B1F2F-11:- Blower Motor Drive Signal - Circuit Short to Ground;----------------------------------------------------- 66 B1F2F-12:- Blower Motor Drive Signal - Circuit Short to battery; ----------------------------------------------------- 69 B1F28-11:- Blower Motor Diagnostic feedback - Circuit Short to Ground;----------------------------------------- 72 B1F28-15:- Blower Motor Diagnostic feedback - Circuit Short to battery or open; ----------------------------- 76 B1F5E-11:- Rear Blower Motor Drive Signal - Circuit Short to Ground;--------------------------------------------- 79 B1F5E-15:- Rear Blower Motor Drive Signal - Circuit Short to battery/open; ------------------------------------- 83 B1F5F-09:- Rear blower input signal failure-Component failure ------------------------------------------------------- 86 B1F1F-11:- Driver Side Air Temperature Feedback Signal - Circuit Short To Ground; ------------------------ 90 B1F1F-15:- Driver Side Air Temperature Feedback Signal - Circuit Short to Battery or Open; ------------- 94 B1F54-11:- Co-Driver Air Temperature Feedback Signal - Circuit Short To Ground;--------------------------- 97 B1F54-15:- Co-Driver Air Temperature Feedback Signal- Circuit Short to Battery or Open; ---------------101 B1F21-11:- Air Distribution Feedback Signal – Circuit Short to Ground; ------------------------------------------105 B1F21-15:- Air Distribution Feedback Signal – Circuit Short to battery or Open; ------------------------------110 B1F1D-11:- Fresh Air/RECIRC Feedback Signal - Circuit Short to Ground; --------------------------------------113 B1F1D-15:- Fresh Air/RECIRC Feedback Signal - Circuit Short to Battery or open;---------------------------117 B1F3E-71:- Driver Side Temperature Door Control Motor - Actuator stuck;--------------------------------------120 B1F3E-54:- Driver Side Temperature Door Control Motor Calibration Fault; -------------------------------------124 B1F57-71:- Co-Driver Side Temperature Door Control Motor - Actuator stuck; ---------------------------------128 B1F57-54:- Co-Driver Side Temperature Door Control Motor Calibration Fault; --------------------------------132 B1F3D-71:- Air Distribution Motor Drive Line– Actuator stuck; ------------------------------------------------------- 136 B1F3D-54:- Air Distribution Motor Drive Line– Missing calibration; ------------------------------------------------- 140 B1F3F-71:- Fresh Air/RECIRC Drive Motor – Actuator stuck; ---------------------------------------------------------- 144 B1F3F-54:- Fresh Air/RECIRC Drive Motor – Missing calibration; ---------------------------------------------------- 149
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