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Home >> Subaru >> 2023 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2.0L (Except For HEV)) (Diagnostics) - Introduction >> General Description >> System Block Diagram

System Block Diagram

G11257247Courtesy of SUBARU OF AMERICA, INC.
G16348832Courtesy of SUBARU OF AMERICA, INC.
(1) Engine control module
(2) Ignition coil and Electronic ignition
(3) Crankshaft position sensor
(4) Intake camshaft position sensor
(5) Electronic control throttle
(6) Fuel injector
(7) Engine coolant temperature sensor
(8) Manifold absolute pressure sensor
(9) Intake air temperature sensor & Mass airflow sensor
(10) EVAP canister purge valve
(11) Knock sensor
(12) Positive crankcase ventilation valve
(13) Air cleaner
(14) Canister
(15) Ignition relay
(16) Fuel pump relay
(17) Fuel filter
(18) Fuel pump
(19) Front catalyst
(20) Rear catalyst
(21) Primary oxygen sensor
(22) Secondary oxygen sensor
(23) Radiator fan control Relay
(24) Radiator fan
(25) Malfunction indicator lamp
(26) Air filter
(27) Park/Neutral position switch
(28) Fuel level sensor
(29) Resonator chamber
(30) Electronically controlled EGR
(31) Oil control valve for in-VVT
(32) Engine oil temperature sensor
(33) Evaporative leak check module
(34) Tumble generator valve motors and tumble generator valve position switch
(35) Inhibitor switch for continuously variable transmission vehicle
(36) Acceleration pedal position sensor
(37) Exhaust camshaft position sensor
(38) Oil control valve for ex-VVT
(39) EGR Cooler
(40) High-pressure fuel pump
(41) High-pressure fuel sensor
(42) Transmission control unit
(43) ABS unit or VDC unit
(44) T/M control unit (CVT)
(45) Car speed
(46) SELECT MONITOR
(47) Ignition switch
(48) A/C Relay
(49) A/C Control unit
(50) A/C Compressor
(51) IG l
G16348833Courtesy of SUBARU OF AMERICA, INC.
(1) Electronic Control Unit
(2) Starter
(3) Fuel Tank
(4) Air Flow Meter
(5) Direct Fuel Injector
(6) Cam Angle Sensor
(7) Oxygen Sensor
(8) A/F Sensor
(9) High-pressure fuel pump
(10) Coolant Temperature Sensor
(11) Pressure Sensor
(12) Throttle Body
(13) Cam Angle Sensor
(14) Fuel Pressure Sensor
(15) Direct Fuel Injector
(16) Crank Angle Sensor
(17) Fuel Filter
(18) Pressure Regulator
(19) Low Pressure Fuel Pump