Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 727 of 834 Copyright by TATA MOTORS Ltd. This document must not be used in any w ay, such as copying and redistributing to third parties, w ithout our consent P2458-00- Particulate Filter Regeneration Duration Bank 1 Overview: Code Cause Effect on Vehicle Fault Code: P2458-00 10. DPF is regenerating frequently 11. Aging of DP sensor 12. DP sensor loose connection 13. Electrical wiring damage 14. ECU connector loose connection 15. DP sensor malfunctioning 16. Clogging of DPF 17. Leakage in intake air path 18. ECU terminal pin damage or bend 1. No lamp reaction 2. Increase in oil level 3. Oil thinning 4. Mileage deterioration Lamp status: Check Engine Lamp off Malfunction Indicator Lamp off Checkpoints: 2. Check whether there is any fault related to DP sensor, MDP or other electrical faults related to AMF, EGR, DP sensor, Injector, VGT, Throttle, WRAF and other FIE relevant faults. If found, address it first. 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 properly - Step 2 Check for continuity between sensor connector pins 1, 3, 2 and ECU pins A57, A49, A45 respectively and for catalyst temperature sensors. - Step 3 Check whether the ECU connector is connected properly - Step 4 Check whether the ECU terminal pin for any damage or bend - Step 5 Check the DP sensors physically for any damage - Step 7 Check intake air path (hoses) & exhaust path for leakage and correct, if leaking -
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