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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: 549 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.
1.Remove Combi Switch mating connector
2. Check continuity between BCM harness side connector pin
[C4-
19]
and Front wiper High speed switch contact at combi switch
[pin details TBD].
Open Circuit?
Perform the visual check of connectors for pin bend or damaged etc.
Is connector
faulty?
Check continuity at combi switch Front wiper High speed switch
contact
[ pin details TBD]
with ground
[ pin details TBD]
Continuity found?
BCM ECU Faulty
Correct wiring harness
(Open Circuit)
YES
NO
Correct connector fault
(Terminal Bend)
Correct connector fault at combi switch
mating connector
(Open Circuit)
YES
NO
YES
NO
Replace BCM ECU
1. Connect combi switch mating connector
2. Put combi switch at Front wiper High speed switch contact
3. check continuity between combi switch Front wiper High
speed switch contact
[ pin details TBD]
with ground
[ pin
details TBD]
Continuity found?
YES
Combi switch fault .
Replace combi switch
NO
A
B
B220E -12: Front Wiper High Speed Switch - circuit short to
Battery