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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: 401 of 737
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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.
B1609 - 12: Door Lock Relay - Circuit Short to Battery
ISO Code
B1609 - 12
Customer Symptom
No locking action happened on operating the vehicle lock.
Fault Effects (On Vehicle)
Driver's door will not lock
Lamp Status (If Any)
NA
Fault Detection Condition
If short to battery fault is detected for Driver Door Lock Signal,
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 Fault
2. Cockpit wiring harness Short to battery or open circuit
3. Actuator is damaged or stuck or faulty
4. BCM ECU fault
Healing Condition
1. Ignition OFF
ON
2. Clear DTC Command
Component Details:
Door Relay, BCM connector
Functionality:
If the Driver door Actuator is short to Battery or Open Circuit, then the Driver's door will not lock.
Preliminary Checks:
1. Check Battery Voltage (12.5 V & above)
2. Check ECU pins for oxidation, bending & damage.
Trouble Shooting: