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Vehicle Platform: OSPREY
ECU Name: Hella Body Control Module (BCM) DTC
Troubleshooting Data
Version: 1.4
Date: 15 May 2018
Author: Body CoC
Page: 665 of 855
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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.
B1619 - 12: Internal Lock Switch - Circuit Short to Battery
ISO Code (DTC Code)
B1619 - 12
Customer Symptom
Customer is unable to lock door.
Fault Effects (On Vehicle)
Door always unlocked.
Lamp Status (If Any)
Fault Detection Condition
This fault will be logged with IGN ON and internal
lock/unlock switch output short to battery.
Normal Operating Condition
This fault will be logged with IGN ON and internal
lock/unlock switch is pressed then door lock/unlock
operation happen alternately.
Probable Trouble Area
Lock/unlock switch output is Short to battery.
ECU fault.
Healing Condition
Run the input switch test routine and read the DTC. The
DTC B1619 – 12 shall not be logged.
Component Details:
BCM activate the door through internal lock/unlock Switch and output is STB for DTC B1619 - 12.
Preliminary Checks:
Check Battery Voltage (9V-16V)
Check ECU pins for oxidation, bending & damage.
Trouble Shooting:-