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: 51 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. Trouble Shooting:- Start Connect the diagnostic tool Read DTCs and check whether it s permanent or in history Check LIN B communication from BCM side. Change broken harness for proper LIN communication. NO YES Is DTC Permanent? Clear DTC Stop (DTC in history) U1303– 88 – LIN Bus B - bus off Check LIN transceiver Faulty Replace LIN transceiver Is LIN harness faulty? Is LIN transceiver faulty?
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