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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 554 (Exterior Lighting System (DTC/Circuit Diagnosis)) >> Circuit Diagnosis >> Headlamp (Hi) Circuit >> Description

Headlamp (Hi) Circuit: Description

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

The IPDM E/R (intelligent power distribution module engine room) controls the headlamp high relay based on inputs from the BCM via the CAN communication lines. When the headlamp high relay is energized, power flows through fuses 34 and 35, located in the IPDM E/R.

(For USA) power then flows to the front combination lamp LH high beam and the daytime running light relay 2 which becomes energized and then power is sent to the front combination lamp RH high beam.

(For Canada) power then flows to the front combination lamp LH and RH high beams.

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