Q501 4 Cylinder MT Application DTC Troubleshooting Data Version: 0.1 Date: 21-Sep-2018 Prepared By: Mithi Prasad, Sarang Kulkarni, Manish Gupta Checked By: Yogesh Jadhav Approved By: Satish Kumar P Page: 886 of 1052 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. 4 Are there any pins damaged at EMS ECU Connector Replace the connector or wiring harness Go to Next Step 5 Are there any pins backed out from the EMS ECU Connector Rectify/Replace Connectors Go to Next Step 6 Check whether the ECM pin K090 is shorted to Ground Rectify the wiring harness connections Go to Next Step 7 Fault Persists. Call Hotline Repeat the above steps for reconfirmation DTC’s confirmation: After rectification, Test Drive the vehicle for 2 KM and ensure that no DTC’s are logged in ECM. Perform the IO / Actuator Test for AC Relay. Test shall be successful. Circuit Schematic: Connector View and Information: NA Component Location & Image:- Check in the Engine Compartment fuse box for the AC relay. Fuse Box Cover Image is shown below. R18 - AC Compressor Clutch Relay
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