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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: 668 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 - 23: Internal Lock Switch - Signal stuck Low
ISO Code (DTC Code)
B1619 - 23
Customer Symptom
Customer is unable lock/unlock door through internal
lock switch.
Fault Effects (On Vehicle)
Door lock/unlock alternately not happen.
Lamp Status (If Any)
Fault Detection Condition
This fault will be logged with IGN ON and internal
lock/unlock switch output stuck to low.
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 stuck to low.
ECU fault.
Healing Condition
Run the input switch test routine and read the DTC. The
DTC B1619 – 23 shall not be logged.
Component Details:
BCM activate the door through internal lock/unlock Switch and output is stuck to low for DTC B1619 - 23.
Preliminary Checks:
Check Battery Voltage (9V-16V)
Check ECU pins for oxidation, bending & damage.
Trouble Shooting:-