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: 501 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. Power Mode (OMM) DTCs U100F - 11: Ignition Power mode Input - Circuit Short to Ground Overview: ISO Code (DTC Code) U100F - 11 Customer Symptom Active power mode will not operate when in this power mode Fault Effects (On Vehicle) Active power mode will not operate when in this power mode Lamp Status (If Any) NA Fault Detection Condition This fault will be logged after the input switch test routine execution. User has to operate the switch manually during routine. If short to ground fault is detected for ignition power mode input switch then this DTC code will be returned with the Routine results. Normal Operating Condition There should not be any fault returned by routine. Probable Trouble Area 1. BCM connector wired wrong 2. Cockpit wiring harness short to ground 3. switch damaged 4. Ignition switch failure Healing Condition 1. Ignition OFF  ON 2. Clear DTC Command Component Details: Ignition power mode input switch is part of Ignition switch and interfaced to the BCM. If the Ignition power mode input switch is activated and all functionality will work properly and if user put the ignition switch to ignition power mode input position, all functionality will work. Ignition power mode input switch is active high. Preliminary Checks: 1. Check Battery Voltage (9V-16V) 2. Check ECU pins for oxidation, bending & damage. Trouble Shooting:-