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: 59 of 301 Trouble Shooting:- START CONNECTTHEDIAGNOSTICTOOL ANDCHECKFORDTC’S ISDTC PRESENT? CHECKDTCPRESENTISPERMANENTOR HISTORY ISDTC PERMANENT? CLEARDTC CHECKTHEFATCHVACSIDECONNECTOR BLUE)&FRESHRECIRCULATIONACTUATOR ( FORPINBACKOUT AREPINS OK? ISCONTINUITY PRESENT? FRESH/RECIRCMOTORDRIVELINEIS SHORTTOBATTERY IFALLTHE ABOVECHECKS FAIL STOP FIXTHE PROBLEM ISDTC PRESENT? NO YES CHECKFORTHECONTINUITYBETWEENPINNO7,PIN NO23OFFATCHVACSIDEECUCONNECTOR(BLUE) ANDBATTERYPINN015,16OFVEHICLESIDE( GREEN)CONNECTOR HIGHRISKOF ECUDAMAGE RECTIFYTHE WIRING HARNESS REPLACEECU B1F2C- FRESH/ 12:: RECIRCDRIVE LINESHORTTO BATTERY YES YES YES NO NO YES NO CRANKTHE VEHICLEAND CHECKFOR DTC’S NO ECUISFAULTY
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