NEXON DIAGNOSTIC MANUAL

Vehicle Platform: OSPREY

ECU Name: Hella Body Control Module (BCM) DTC

Troubleshooting Data

Version: 1.1

Date: 03 Mar 2017

Author: Body CoC

Page: 431 of 784

TATA MOTORS Ltd.

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Check countinuty between BCM connector pin

[C1-

30]

and BCM Battery voltage pin

[C3-1/ C3-2]

Continuity found?

Correct BCM side wiring harness

(Short To Battery)

Yes

1.Remove Horn Relay mating connector

2.Perform the visual check of connectors for pin bend or

damaged etc.

Is connector faulty?

Correct connector fault

(Terminals Bend)

1.Remove all BCM connector

2.Take out Horn Relay output wire

[C1-30]

from connector

3.Reconnect all connectors including battery

4.Check if Horn funtionality is ON?

Horn functionality

is ON?

Reconnect all

connectors firmly

BCM ECU faulty

Replace BCM ECU

Yes