TIAGO TIGOR BSVI - SERVICE MANUAL - DTC 24-12-2021

Vehicle Platform: Zest, Bolt, Tiago, Tigor, Osprey, Q501, X451, Q502 ECU Name: Hella Body Control Module (BCM) DTC Troubleshooting Data Version: 3.1 Date: 30-11-2019 Author: BCM COC Page: 1083 of 1106 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. U1609 – 81 :- Invalid Data Received From Antilock Braking System/Electronic Stability Program (ABS/ESP) Control Module – invalid serial data received Overview: ISO Code U1609-81 Customer Symptom Only ABS CAN signal is brake lamp redundancy check. Fault Effects (On Vehicle) Only ABS CAN signal is brake lamp redundancy check. Lamp Status (If Any) N.A Fault Detection Condition Relevant functional DTCs present in ABS/ESP. ESCL uses default data values. Normal Operating Condition ABS/ESP ECU sends correct serial data in normal condition. Probable Trouble Area 1. Incorrect serial data received from ABS/ESP. 2. Partner ABS/ESP ECU Fault. Healing Condition 1. After rectifying relevant functional failures in the ABS/ESP ECU. 2. Clear DTC Command