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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: 440 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.
Is connector faulty?
Correct connector fault
(Terminals Bend)
YES
Check continuity between BCM connector pin
[ C1-21
] and
BCM ground
[C1-34/C1-47]
Continuity
found?
Correct BCM side wiring harness
( Short to Ground)
YES
1. Remove Ignition switch mating connector
2. Perform the visual check of connectors for pin bend or
damaged etc.
Is connector faulty?
Correct connector fault
(Terminals Bend)
YES
NO
Check continuity between two terminals of Crank
switch
Continuity found?
1. Switch is faulty
2. Replace front fog lamp
switch
BCM ECU Faulty
Replace BCM ECU
Check continuity between Ignition switch terminal and
ground
[C1-34/C1-47]
Continuity
Found?
Correct Facia switch side
wiring harness
( Short to Ground)
NO
YES
NO
NO
NO
YES
A
B
DTC’s confirmation:-