Q5/X451 FATC DTC Troubleshooting Data Version: 1.0 Date: 16-Oct-2018 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: 16 of 202 DTC’s confirmation:- After rectification, Press AC button from control Panel ensure the following points by AC parameters using TML diagnostic tool before handing over to customer. a) Physical check of temperature change when requested. b) Read ECU parameters 4A45, which should be requested values. Connector Location: - HVAC kit Connector View & Information: - Pin Details:- 1 EVAPSensSig Sensor Temperature Evaporator Signal 2 EVAPSensGnd Sensor Temperature Evaporator Gnd Inspection Method: - 1) If there is no continuity between the sensor connector & ECU connector then correct the wiring harness 2) If there is a continuity between the sensor signal and battery lines correct the wiring harness (wiring harness short to battery)
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