Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 425 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 P0003-18: Fuel Volume Regulator Current Feedback Low Overview: Code Cause Effect on Vehicle Fault Code: P0003-18 1. Low IMV current feedback 2. IMV open circuit or short circuit to ground 3. ECU connector loose connection/pin backout. 4, ECU terminal pin damage or bend 1. CE Lamp ON 2. Moderate Drivability 3. Reduced vehicle performance 4. Disabled drive mode option 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 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 for open circuit or short circuit to ground - Step 5 Check the IMV connector physically - Step 6 If the problem persists, replace the HP pump -
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