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: 1166 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 relevant functional DTCs in the ABS/ ESP ECU. Follow the procedure to diagnose relevant functional DTCs in the ABS/ ESP ECU. NO YES Is DTC Permanent? Clear DTC Stop (DTC in history) U1609–81–Invalid Data Received From Antilock Braking System/Electronic Stability Program (ABS/ESP) Control Module–invalid serial data received ABS/ESP ECU Faulty Replace PEPS ECU
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