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: 47 of 301 DTC’s confirmation:- START CONNECTTHEDIAGNOSTICTOOL ANDCHECKFORDTC’S ISDTC PRESENT? CHECKDTCPRESENTISPERMANENTOR HISTORY ISDTC PERMANENT? CLEARDTC CHECKTHEFATCHVACSIDECONNECTOR ( BLUE)&FRESHRECIRCULATIONACTUATOR FORPINBACKOUT AREPINS OK? ISCONTINUITY PRESENT? MODEMOTORDRIVELINEISSHORT TOBATTERY IFALLTHE ABOVECHECKS FAIL STOP FIXTHE PROBLEM ISDTC PRESENT? NO YES CHECKFORTHECONTINUITYBETWEENPINNO5,PIN NO21OFFATCHVACSIDEECUCONNECTOR(BLUE) ANDBATTERYPINN015,16OFVEHICLESIDE( GREEN)CONNECTOR HIGHRISKOF ECUDAMAGE RECTIFYTHE WIRING HARNESS REPLACEECU B1F2E- MODE(AIR 12:: DISTRIB)DRIVE LINESHORTTO BATTERY YES YES NO NO YES NO CRANKTHE VEHICLEAND CHECKFOR DTC’S NO ECUISFAULTY YES
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