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: 4 of 244 B1F3F-71:- Fresh Air/RECIRC Drive Motor – Actuator stuck; --------------------------------------------------------123 B1F3F-54:- Fresh Air/RECIRC Drive Motor – Missing calibration; --------------------------------------------------128 B1F4A-23:- AC Request Button-Signal Stuck Low ----------------------------------------------------------------------132 B1F4D-23:- Air Distribution Request Button-Signal Stuck Low -----------------------------------------------------135 :- Driver side Air Temperature Up-Signal Stuck Low -------------------------------------------------------------------138 :- Driver side Air Temperature Down - Signal Stuck Low --------------------------------------------------------------141 :- Co-Driver side Air Temperature Up-Signal Stuck Low --------------------------------------------------------------145 :- Co-Driver side Air Temperature Down-Signal Stuck Low ----------------------------------------------------------148 B1F33-23:- Auto Request Button-Signal Stuck Low --------------------------------------------------------------------151 B1F36-23:- Control Panel Request Button-Signal Stuck Low --------------------------------------------------------154 B1F37-23:- Max. Defrost Request Button-Signal Stuck Low ---------------------------------------------------------157 B1F38-23:- Rear Defog Request Button -Signal Stuck Low -----------------------------------------------------------160 B1F39-23:- Fresh Air / Recirc Request Button -Signal Stuck Low --------------------------------------------------163 U3006-16:- Control Module Input Power “A” – Circuit Voltage below Threshold ------------------------------166 U3006-17:- Control Module Input Power “A” – Circuit Voltage above Threshold ------------------------------171 B1F50-11:- Control Module output power for FATC Control Head- Circuit Short to ground ---------------175 B1F50-15:-Control Module output power for FATC Control Head- Circuit Short to battery and Open --178 B1F48-14:- All HVAC & non-HVAC sensors Voltage reference pin- Circuit Short to ground or Open --181 B1F48-12:-All HVAC & non-HVAC sensors Voltage reference pin- Circuit Short to battery ----------------184 P0604-00:- Internal Control Module Random Access Memory (RAM) Error -------------------------------------187 P062F-00:- Internal Control Module EEPROM Error ---------------------------------------------------------------------190 P0605-00:- Internal Control Module Read Only Memory (ROM) Error ---------------------------------------------192 CAN Bus Architecture: -----------------------------------------------------------------------------------------------------------194 Wiring Harness ----------------------------------------------------------------------------------------------------------------------194 Preliminary Check ------------------------------------------------------------------------------------------------------------------195 U0028-13:- Vehicle Communication Bus A-open circuit ---------------------------------------------------------------196 U0028-88:- Vehicle Communication Bus A-Bus off----------------------------------------------------------------------198 U131D-88:- CCH LIN Bus A ------------------------------------------------------------------------------------------------------199 U2416-81:- Invalid Data Received From IN CAR Temperature Sensor --------------------------------------------201 B1F4E-02:- CCM is configured as Dual while CCH as Single (Zone 2) – General signal Failure ----------203 B1F4F-02:- CCM configured as Single while CCH as Dual (Zone 3) – General signal Failure -------------205 U2417-57:- Flash Image Record Data Mismatch- Invalid /Incompatible Software component -------------207 B1F52-4B:- Half Bridge Driver Thermal Warning –Over Temperature ---------------------------------------------209 B1F53-55:- CCH_CCM Read ECU Parameter Routine –Not Configured ------------------------------------------211 U0100-08:- Lost communication with ECM- Message Timeout Failure -------------------------------------------214 U0155-08:- Lost communication with instrument Panel Cluster- IPC Message Time Out Failure --------220 U0140-08:- Lost communication with Body Control Module- Message Timeout Failure --------------------224 U0401-81:- Invalid Data Received From ECM ------------------------------------------------------------------------------231 U0423-81:- Invalid Data Received From IPC -------------------------------------------------------------------------------234 B1F5D - 96:- Dust Sensor Failure – Component Internal Failure ----------------------------------------------------236 B1F5D-4B:- Dust Sensor Failure Over Temperature --------------------------------------------------------------------237 B1F5D - 09:- Dust Sensor Failure(Permanent Fault) – Component failure ---------------------------------------239 U1331-08:- Lost Communication with Dust Sensor – Bus Signal/Message Failure ---------------------------240 U1332-88:- CCM LIN Bus B – Buss Off --------------------------------------------------------------------------------------243
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