2069 / 4910
Vehicle Platform: Tiago,Tigor & Osprey
ECU Name: Hella Body Control Module (BCM)
DTC Troubleshooting Data
Version: 2.0
Date: 22-10-2018
Author: Parag K
Page: 726 of 737
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.
B160B - 14:Door Unlock control driver Relay/ Tailgate Unlock
Control Relay- Circuit Short to Ground or Open
START
Connect Diagnostic tool and check for DTCs
Is DTC B160B –
14 present?
STOP
NO
Check DTC present is Permanent or Historic
Is History?
1. Clear the DTC from memory
2. Turn the IGN to OFF
3. Start the IGN
Is DTC B160B -
14 present?
NO
YES
YES
NO
Disconnect vehicle battery connection.
(Please follow the safety guidelines)
Check the physical connection of the BCM
connector & All door UnLock/Tailgate Unlock
relay connector.
Are connectors
loose ?
Reconnect
connectors firmly
YES
1.Remove BCM side wiring harness Connector.
2.Perform visual check of connectors for pins bent or
damaged etc.
Is connector
faulty?
Correct connector fault
(Terminals Bend)
YES
NO
NO
B
1) Remove relay from its mounting base.
2) Check continuity between BCM connector pin no
[C1-42]
to door unlock relay connector.
Correct connector fault
(Open Circuit)
NO
Continuity
found?
NO
YES
YES
A