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: 344 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. Trouble Shooting: Step Checks IF YES IF NO 1. Is there any rust/oxidization observed on Sensor Terminals. Clean the Rust or repair or replace Go to Step 2. 2. If the Cold Condition is recognized, and either the adapted raw pressure value is above the tolerance limit 18 hPa or the absolute difference between the upstream pressure and environmental pressure is greater than the tolerance limit 40 hPa with no error in environmental pressure. Establish continuity by rectifying harness connections as per the circuit schematic. Go to step 3. 3. Are there any pins damaged at Sensor/EMS ECU Connector. Replace the connector or wiring Harness. Go to step 4. 4. Are there any pins backed out from the Sensor/EMS ECU Connector. Rectify/Replace Connectors. Go to Step 5. 5. Is Sensor pin K016 short circuited to GND/Battery or Open? Repair the harness as per the schematic. Go to Step 6. 6. Is sensor physically Damaged? Replace Sensor. Go to Step 7. 7. 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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