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: 66 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. U1006 – 42 :- Control Module Internal – general memory failure Overview: ISO Code U1006 - 42 Customer Symptom BCM will probably not function or will function intermittently or partially Fault Effects (On Vehicle) HU unit inoperative Lamp Status (If Any) None Fault Detection Condition Fault logged in the event of an error in the data flash memory Normal Operating Condition Normal operating range: ECU will be awake from 6V to 16 V. Full assistance is b/w 11.5 to 16 volts. Reduced assistance is b/w 9 to 11.5 V Probable Trouble Area BCM internal damage Healing Condition N/A Component Details: N/A Preliminary Checks: 1. Voltage at the battery terminals should be greater than 11.5V. 2. BCM power supply connector should have greater than 11.5V for full assistance. 3. Check battery cable and BCM connector terminals for damage. 4. Check BCM ECU for pin bend/damage. 5. Alternator output voltage should be between 13.5 V to 14.5 V in engine running condition.