Vehicle Platform & ECU Name DTC Troubleshooting Data Ver: 1 Date: 23/11/2022 Author: ERC Page 396 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 Step 6 If there is a mismatch, replace the ECU - Associated Parameters: Parameter Label Description DID Monitoring Battery voltage raw Current Battery voltage read by the ECU FE00 Nominal range - 11.5V to 12.8 V Verification condition: Drive the vehicle in city and highway condition for 20 mins. Circuit Description: ECM continuously monitors its internal memory status, internal circuits. These are basically self-checks that ensure that ECM is functioning properly. If any malfunction is detected, ECM will set the DTC. ECM is supplied voltage from the battery positive supply through Main relay. ECM ground connection is connected to the battery negative supply. ECM functionality critically depends on ensuring proper ground connection. Circuit Schematic Diagram: Component location and image:
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