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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 298 (Heater & Air Conditioning Control System (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> Water Valve Circuit >> System Description >> Component Description

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.

Water Valve 

The water valve cuts the flow of engine coolant to the front and rear heater cores to allow for maximum cooling during A/C operation. It is controlled by the front air control.

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