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: 340 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. P226D-00: DFC to indicate hose line error. Overview: DTC Description (User Friendly) DFC to indicate hose line error. ECU Pin Number K042, K016, K015 Customer Symptom MIL OFF, CEL OFF Fault Effects (On Vehicle) - Lamp Status (If Any) - Fault Detection Condition (Root cause) An error is detected if the filtered differential pressure signal below the minimum value -18hPa and the Cold Condition is recognized. Normal Operating Condition Proper wire harness between particulate filter differential pressure sensor. Probable Trouble Area Wire harness between particulate filter differential pressure sensor. Healing Condition Rectify the error Clear through diagnostic tool. Ignition OFF & ON Component Details: Particulate filter, differential pressure sensor is mainly used to monitor the soot loading of a particulate filter on a diesel engine or gas turbine. Preliminary Checks: 1. Check whether the customer voice / view about the issue is matching with the fault effects mentioned in above Table. If yes, go ahead with next steps. If not, check for other DTC’s presence. 2. Check whether other customers report similar complaints earlier. If yes, perform the preliminary checks with respect to earlier issue closure. 3. Check for Damage in EMS ECU connector / Particulate filter differential pressure sensor. 4. Check for any back out of pins at EMS ECU connector / particulate filter differential pressure sensor. 5. Check for any damage of pins at EMS ECU connector / Particulate filter differential pressure sensor. Trouble Shooting:
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