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: 97 of 301 C1 ACTUATOR Amp no 01355082-1 1 PotentiometerGnd Potentiometer Ground with FB- Gnd 2 PotentiometerFbSig Potentiometer feedback signal Analog 3 PotentiometerSpply Potentiometer Supply with FB- Power 4 NC NC NC 5 Mot + Motor signal is + in CW and Motor signal is - in CCW Digital 6 Mot - Motor signal is - in CW and Motor signal is + in CCW Digital Inspection Method: - 1) If there is no continuity between the Temperature feedback line & ECU connector then correct the wiring harness 2) If there is continuity between the Temperature feedback line and Battery line correct the wiring harness (wiring harness short to Battery) B1F54-11:- Co-Driver Air Temperature Feedback Signal - Circuit Short To Ground; ISO Code B1F54 – 11 Customer Symptom System is less responsive to user control and environmental conditions Fault Effects (On Vehicle) 4) If Motor learning is in process, end stops will not be learnt properly 5) Motor will not be positioned accurately 6) Cooling and Heating will not be accurate Lamp Status (If Any) NA
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