NEXON 3.0 EV DTC Troubleshooting Document for VCU Version: 2.0 Date: 22-Sep-2023 Copyright © TATA MOTORS Ltd. This document must not be used in anyway, such as copying and redistributing to third parties, without the consent of author. U1006 - 04: - Control Module Internal - System Internal Failures ISO Code U1006 - 04 Customer Symptom Vehicle is operable with reduced power. If control module unrecoverable failure, vehicle may not respond as per the inputs given by driver Fault Effects (On Vehicle) Vehicle speed will be limited to 50 kmph. If unrecoverable control module failure, vehicle Electronic Control Unit (VECU) may be non-responsive for some or all functions on vehicle Lamp Status (If Any) Limp home telltale blinking. Fault Detection Condition VCU internal component failure Normal Operating Condition VECU functions normally for vehicle drivability. Probable Trouble Area Vehicle Control Unit Hardware Healing Condition NA Component Details: Vehicle Electronic Control Unit (VECU) is responsible to control the Powertrain components as per the inputs received from user/driver for vehicle drivability. Preliminary Checks: The above DTC is indication of an addressing error in system RAM or a write error in the RAM controller resulting in corrupted RAM access. This is internal error of Vehicle Control Unit Hardware. Check whether VECU hardware is properly mounted and connected. Trouble Shooting: - Step No. Description Check point If Yes If No
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