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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: 111 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.
Open Circuit?
Perform the visual check of Combiswitch mating
connectors for pin bend or damaged etc.
Is connector faulty?
Check continuity at HeadlampON
contact
of combiswitch
mating connector with Battery ground.
Continuity found?
BCM ECU Faulty
Correct wiring harness
(Open Circuit)
YES
NO
Correct connector fault at combi
switch mating connector
(Terminal Bend)
Correct connector fault at combi switch
mating connector
(Short to ground)
YES
NO
YES
NO
Replace BCM ECU
Check continuity between HeadlampON terminal and
Battery ground terminal of combiswitch connector (Please
refer the combiswitch drawings)
Continuity found?
YES
1. Combiswitch is faulty
2. Replace combiswitch
NO
A
B
B221A – 11: HeadLampON signal – Circuit Short To Ground