Vehicle Platform: Zest, Bolt, Tiago, Tigor, Osprey, Q501, X451, Q502 ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 3.8 Date: 17-10-2022 Author: BCM COC Page: 867 of 1202 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. U130B – 87 : Lost Communication With Head Unit (HU) – Missing Message Overview: ISO Code U130B - 87 Customer Symptom No immediate symptom Fault Effects (On Vehicle) No immediate symptom Lamp Status (If Any) NA Fault Detection Condition CAN transceiver fault, partner ECU fault Normal Operating Condition Infotainment system should function normally Probable Trouble Area CAN transceiver fault, partner ECU fault, excessive network traffic Healing Condition Check with Service tool, check function of partner ECU Component Details: NA Preliminary Checks: 1. Check Battery Voltage (12.5 V & above) 2. Check ECU pins for oxidation, bending & damage.
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