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Home >> Infiniti >> 2018 >> QX30 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction) >> System Description >> Component Parts >> Component Parts Location >> Engine Room Compartment
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Engine Room Compartment

GNSJSBIB0501Z-501Courtesy of NISSAN NORTH AMERICA, INC.

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Fuse and fusible link block 1

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Battery under side

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Engine room center

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: Vehicle front

No.

Component

Function

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Pressure sensor downstream of air filter

Pressure Sensor Downstream of Throttle Valve 

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Intake camshaft valve lift switchover

Intake Camshaft Valve Lift Switchover 

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ECM

ECM 

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Decoupling relay

The decoupling relay is controlled by BCM and changes power supply circuit of on-board electrical system while restart the engine. (stop/start system)

For the details of the control, refer to System Description .

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Starter relay

The decoupling relay is controlled by ECM and supplies battery voltage to starter motor. For the details of control, refer to System Description .

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Motor relay

The motor relay is controlled by ECM and supplies battery voltage to ECU, actuator, sensor, and etc.

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Water pump relay

The water pump relay is controlled by ECM and supplies battery voltage to water pump. For the details of the control.

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EVAP purge control valve

EVAP Purge Control Valve 

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EVAP control system pressure sensor

The EVAP control system pressure sensor detects pressure in the purge line.