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: 670 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.
A
Is connector
faulty?
Check continuity between BCM connector
pin
[C1-28]
and BCM battery
[C3-2/C3-1]
.
Continuity
found?
1. Remove express down matting connector.
2. Perform visual check of connector for pins bend or damaged etc.
Is connector
faulty?
1. Remove all BCM connector.
2.. Reconnect all connectors including battery.
3. Check if express down operation is working
properly.
Is function
working properly
?
BCM ECU faulty
Replace BCM ECU
Correct connector
fault(Terminals bend)
Correct BCM side wiring
harness.(Short to battery)
Correct connector
fault(Terminals bend)
No
No
No
Yes
Yes
Yes
B
Yes
B1326– 12 :Express down output – STB
No
DTC’s confirmation:-
After rectification, ensure the following points by using TML diagnostic tool before handing over to customer.




