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: 758 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. Window Winding B1326 – 12: Express down output_Short_to_Battery Overview: ISO Code B1326 – 12 Customer Symptom Window Up/Down will not operate Fault Effects (On Vehicle) 1. Window Up/Down will not operate. 2. Battery Drain Lamp Status (If Any) NA Fault Detection Condition This fault gets logged by BCM when window output is shorted to battery. Normal Operating Condition Window operates up and down normally when switch is pressed. Probable Trouble Area 1. BCM connector Fault 2. Window output wire Short to battery or open circuit 3. BCM ECU fault 4. Mating connector fault Healing Condition 1. Ignition OFF  ON 2. Clear DTC Command Component Details: NA Preliminary Checks: 1. Check Battery Voltage (12.5 V & above) 2. Check ECU pins for oxidation, bending & damage.