Vehicle Platform: All ECU Name: Telematics Control Unit (TCU) DTC Troubleshooting Data Version: 1.12 Date: 02-06-2022 Author: TCM COC Page: 72 of 150 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. B280C - 57:- Startup error of TCU - invalid / incomplete software component Overview: ISO Code B280C – 57 Start-up error of TCU - invalid / incomplete software component 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 Relevant functional DTCs present in TCU .DTC is set in case of Start-up error of TCU. Normal Operating Condition TCU doesn’t have Start-up error of TCU in normal condition. Probable Trouble Area Improper flashing of TCU Faulty TCU Internal Component failure Healing Condition 1. Verify DTC ageing-Clear in case of ageing 2. Verify any other communication related DTCs present 3. Verify TCU DTCs and check for any related DTCs 4. Follow TCU trouble shooting guideline to clear the relevant functional DTCs 5. Clear DTC and reflash TCU 6. If problem persists after above steps (from 1 to 5) then replace TCU
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