Vehicle Platform: Nexon-EV ,Nexon-MCE ECU Name: Telematics Control Unit (TCU) DTC Troubleshooting Data Version: 1.4 Date: 16-09-2020 Author: TCM COC Page: 18 of 121 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. U1006 - 4B:- Control Module Internal - over temperature Overview: ISO Code U1006 - 4B Control Module Internal - over temperature Customer Symptom Telematics ECU features will not be working Fault Effects (On Vehicle) Remote , Vehicle security, Alerts and other telematics features will not be working Fault Detection Condition DTC is set in case of control module internal temperature is high Normal Operating Condition TCU ECU communicates properly with other partner ECU’s under normal temperature range with in <To be updated> to <To be updated> Probable Trouble Area TCU internal hardware errors TCU Faulty Poor electrical connection Temperature on TCU is high Healing Condition 1. Verify DTC ageing-Clear in case of ageing 2. Verify if any other functional DTCs present like component failures, replace the TCU in case of faulty DTCs after clearing the DTCs and power cycle 3. Check the harness connector-Replace the harness in case of faulty harness 4. Check TCU connector in general, connect firmly in case of loose-Replace TCU in case of connector damage 5. If problem persists after above steps (from 1 to 4) then replace TCU
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