Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 422 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 P0004-19: Fuel Volume Regulator Current Feedback High Overview: Code Cause Effect on Vehicle Fault Code: P0004-19 1. High IMV current feedback 2. IMV short circuit to 12V 3.ECU connector loose connection/Pin backout 4. ECU terminal pin damage or bend 1. CE Lamp ON 2. Disabled drive mode option 3. Reduced vehicle performance Lamp status: Check Engine Lamp on Malfunction Indicator Lamp off Checkpoints: 1. Check Battery Voltage at Ignition off (Nominal Range 11.5V ~ 12.8V) Trouble Shooting Steps: Sr. No. Steps Specifications Step 1 Check if the IMV connector is connected properly. Remove and connect again properly - Step 2 Check for continuity between IMV sensor connector pins 1, 2 and ECU pins (B3, B5 or B6)T87, A25, respectively. - Step 3 Check the ECU terminal pin for any damage or bend. Check the ECU connector for any pin backout - Step 4 Check the wiring corresponding to IMV connector pin 2 for short circuit to 12V or short circuit to ground - Step 5 Check the IMV connector physically for any damage - Step 6 If the problem persists, replace the HP pump -
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