Vehicle Platform: All ECU Name: Telematics Control Unit (TCU) DTC Troubleshooting Data Version: 1.12 Date: 02-06-2022 Author: TCM COC Page: 100 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. B283D - 11 :- Wake-Up Output from BCM - circuit short to ground Overview: ISO Code B283D – 11 Wake-Up Output from BCM - circuit short to ground Customer Symptom Following Telematics features will not be working:- Remote Lock/Unlock, Remote Lights on/off, Remote climate/HVAC control, Remote charging On/Off, Unauthorized Car Access Alert - Intrusion Alert, Alerts about critical car parameters (Including battery related alerts),View Trip details and Provide drive pattern analytics with Driver Score (Should be sharable on social media),EV range prediction - VCU Calculated, View Car Health Dashboard, Remote Horn, Panic Notification 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 TCU wake-up input from BCM pin is shorted to ground Normal Operating Condition Wake-Up Output from BCM pin is working properly in normal condition Probable Trouble Area Faulty TCU TCU Connector Fault Wake-up input from BCM(pin:22) is shorted to battery Internal Component failure TCU pin have problem with oxidation, bending & damage 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. Replace TCU connector 6. If problem persists after above steps (from 1 to 5) then replace TCU
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