Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1.0 Date: 30/11/2019 Author: ERC Page 98 of 610 Copyright by TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without our consent P243C-00- Particulate Filter Regeneration Frequency Bank 2 Overview: Code Cause Effect on Vehicle Fault Code: P243C-00 1.Aging of sensor 2.Sensor connection 3.Electrical wiring 4.ECU connection 5.Sensor malfunctioning 6. Clogging of DPF 1.CE Lamp will glow 2. Increase in oil level 3. Mileage deterioration Checkpoints: Check sensor Voltages for Differential pressure and catalyst temperature sensors. Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check connector of DP sensor and catalyst temperature sensor are connected properly Remove and connect again Step 2 Check for continuity between sensor connector pins 1, 2, 3 and ECU pins A57, A49, A45 respectively and for catalyst temperature sensors. Check the continuity between the sensor and ECU Step 3 Check the ECU connector is connected properly Connect the ECU connector properly Step 4 Check the sensors physically Physical check Step 5 If the problem persists, replace faulty sensor - Step 6 Check air path leakage Physical check Step 7 Check actuator connections whether working correctly for VGT, Throttle and EGR Physical check Step 8 Clogged filter Service regeneration. Circuit Schematic Diagram:
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