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: 44 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. Step Checks IF YES IF NO 1. Disconnect the connector of boost pressure signal. Identify the pin number 2 on the harness side connector. Check the continuity between pin 2 of the harness side connector and battery ground.If the continuity is observed then there is a open circuit in the harness. Follow electrical continuity check Procedure. Replace/rectify harness if required Go to Step 2. 2. Are there any pins damaged at EMS ECU Connector, boost pressure and temperature sensor connector. Replace the connector or wiring harness. Go to Step 3. 3. Are there any pins backed out from the EMS ECU Connector, boost pressure and temperature sensor connector. Rectify/Replace Connectors. Go to Step 4. 4. Check whether the EMS ECU pin 61 is short circuited to Battery / Ground. If problem identified replace the AMF sensor also rectify the wiring harness. Go to Step 5. 5. If fault still persists. then replace sensor and if fault still persists then call hotline. Follow the above procedure again for Reconfirmation. DTC’s confirmation(checks before handing over vehicle to customer): 1. Check the errors at Ignition ON, engine running @ Idle & Fly-up with different vehicle speeds also 2. If error present, then rectify the errors. 3. Confirm that there is no error logged in EMS before handing over vehicle to customer. Circuit Schematic:
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