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Home >> Nissan-Datsun >> 2021 >> NV3500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 251 (Security Control System) >> System Description >> Component Parts >> Vehicle Security System >> Component Description
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Component Description

WARNING: This page is about a different car, the 2018 Nissan NV3500 HD, 2018 Nissan NV2500 HD, and 2018 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

Item

Function

BCM

Verifies the received signal from ignition key, then informs ECM whether to allow engine start.

Door switch

Provides the BCM with the status of each monitored door.

Security indicator

Indicates the status of the security system.

IPDM E/R

Controls the horn and headlamps operation.

Horn

Sounds when the vehicle security system is triggered.