Gravitas/SAFARI/X451/NEXON FATC DTC Troubleshooting Data Version: 1.1 Date: 28-Apr-2021 Copyright © TATA MOTORS Ltd. This document must not be used in any way, such as copying and redistributing to third parties, without the consent of author. Author: ERC Page: 187 of 244 1) Battery Voltage is between 9 to 16V. Circuit Schematic Diagram:- Schematic shared separately in PDF. Component Location & Image:- NA Connector Location: -Behind the CCM ECU Body. Connector View & Information: (HVAC SIDE CONNECTOR) Inspection Method: - Use multimeter check continuity pin C2-14& battery pin. P0604-00:- Internal Control Module Random Access Memory (RAM) Error Overview: ISO Code P0604 - 00 Customer Symptom FATC Malfunctions or goes OFF Fault Effects (On Vehicle) FATC will be Malfunctions/OFF Lamp Status (If Any) NA Fault Detection Condition NA Normal Operating Condition FATC shall work normally in the operating voltage range of: 9V to 16V (Tolerance ± 0.2V). Probable Trouble Area • ECU RAM Failure • Incorrect Software Flashed Healing Condition N/A Component Details: +Vbat(pin 16) Reference voltage for HVAC sensors (C2-14)
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