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: 125 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. U1612 – 62 :- Head Unit Pairing Detection - signal compare failure Overview: ISO Code U1612-56 Customer Symptom HU remains in Media Off mode. Fault Effects (On Vehicle) HU works with reduced functionality Lamp Status (If Any) N.A Fault Detection Condition Relevant functional DTCs present in BCM. CAN communication from BCM to HU interrupted or BCM HU Authentication Failure due to key does not match. Normal Operating Condition CAN communication is proper from BCM to HU and HU configuration is matched with BCM then HU should work properly. Probable Trouble Area 1. CAN communication error. 2. Incorrect configuration. Healing Condition 1. Do proper HU configuration. 2. Establish proper CAN communication from HU to BCM. 3. Clear DTC Command