Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 201
EN(H4DOTC)(diag)-28
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
Input/output name:
• Crankshaft position sensor
• Intake camshaft position sensor RH
• Intake camshaft position sensor LH
• Exhaust camshaft position sensor RH (models with SI-DRIVE)
• Exhaust camshaft position sensor LH (models with SI-DRIVE)
Measuring condition:
• After warming-up
• At idling
5 V
10 ms
0
0
0
0
0
EN-07431
INTAKE CAMSHAFT
POSITION SENSOR LH
INTAKE CAMSHAFT
POSITION SENSOR RH
CRANKSHAFT
POSITION SENSOR
EXHAUST CAMSHAFT
POSITION SENSOR LH
EXHAUST CAMSHAFT
POSITION SENSOR RH
ONE CRANKSHAFT ROTATION
ONE CAMSHAFT ROTATION
EN(H4DOTC)(diag)-29
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
A7
A5
A14
A15
B134
A:
A19
EN-09942
A28
A29
A34
A21
A22
A31
A32
A23
A33
A24
A25
A26
A27
A6
A4
A3
A2
A1
A11
A10
A13
A12
A18
A17
A16
SI
SI
SI
SI
SI
: WITH SI-DRIVE
INTAKE OIL FLOW CONTROL
SOLENOID VALVE LH
INTAKE OIL FLOW CONTROL
SOLENOID VALVE LH
ELECTRONIC THROTTLE CONTROL
FUEL INJECTOR No. 3
FUEL INJECTOR No. 4
FUEL INJECTOR No. 1
FUEL INJECTOR No. 2
ELECTRONIC THROTTLE CONTROL
ELECTRONIC THROTTLE CONTROL
ENGINE GROUND
ENGINE GROUND
ENGINE GROUND
INTAKE OIL FLOW CONTROL
SOLENOID VALVE RH
TUMBLE GENERATOR VALVE ASSY RH
TUMBLE GENERATOR VALVE ASSY RH
TUMBLE GENERATOR VALVE ASSY LH
WASTEGATE CONTROL SOLENOID VALVE
TUMBLE GENERATOR VALVE ASSY LH
IGNITION COIL No. 4
IGNITION COIL No. 3
IGNITION COIL No. 2
IGNITION COIL No. 1
INTAKE OIL FLOW CONTROL
SOLENOID VALVE RH
GROUNDS
ELECTRONIC THROTTLE CONTROL
POWER LINES
EXHAUST OIL FLOW CONTROL
SOLENOID VALVE RH
EXHAUST OIL FLOW CONTROL
SOLENOID VALVE LH
EXHAUST OIL FLOW CONTROL
SOLENOID VALVE LH
EXHAUST OIL FLOW CONTROL
SOLENOID VALVE RH
EN(H4DOTC)(diag)-30
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
B6
EN-09943
B11
B13
B14
B7
B23
B31
B26
B10
B15
B17
B22
B29
B30
B135
B:
B12
B24
B35
B4
B3
B8
B25
B27
B19
B21
B20
B9
MA
MA
ELCM
CLUTCH SWITCH
: MANUAL A/C MODEL
SECONDARY AIR COMBINATION VALVE RELAY 2
ACCELERATOR PEDAL POSITION SENSOR
A/C CONTROL PANEL
SECONDARY AIR PUMP RELAY
BODY INTEGRATED UNIT
SECONDARY AIR
COMBINATION VALVE RELAY 1
PRESSURE CONTROL SOLENOID VALVE
A/C RELAY
BODY INTEGRATED UNIT
MAIN FAN RELAY
GROUNDS
ACCELERATOR PEDAL POSITION SENSOR
POWER LINES
ELECTRONIC THROTTLE CONTROL RELAY
COMBINATION METER
FUEL PUMP CU
STARTER RELAY
ACCELERATOR PEDAL POSITION SENSOR
ACCELERATOR PEDAL POSITION SENSOR
ELECTRONIC THROTTLE CONTROL RELAY
DATA LINK CONNECTOR
RELAY CONTROLS
SUB FAN RELAY
REAR OXYGEN SENSOR
EN(H4DOTC)(diag)-31
Engine Control Module (ECM) I/O Signal
ENGINE (DIAGNOSTICS)
C16
EN-09944
C6
C5
C2
C22
C28
C3
C1
C4
C12
C7
C10
C9
C11
C13
C15
C21
C30
C31
C34
C35
C18
C19
C20
B136
C:
C33
C17
C29
MA
AA
AA
MA
ELCM
A/C CONTROL PANEL
EVAPORATOR SENSOR
: AUTO A/C MODEL
: MANUAL A/C MODEL
BODY INTEGRATED UNIT
(CAN COMMUNICATION)
FUEL PUMP CU
REAR OXYGEN SENSOR
FRONT OXYGEN (A/F) SENSOR
FRONT OXYGEN (A/F) SENSOR
NEUTRAL POSITION SWITCH
DELIVERY (TEST) MODE CONNECTOR
MASS AIR FLOW & INTAKE AIR
TEMPERATURE SENSOR
F/B FUSE No. 12
BRAKE SWITCH
CRUISE CONTROL SWITCH
MASS AIR FLOW & INTAKE AIR
TEMPERATURE SENSOR
SHIELDS
MASS AIR FLOW & INTAKE AIR
TEMPERATURE SENSOR (SHIELD)
PRESSURE SWITCH
CRUISE CONTROL SWITCH
GROUNDS
MAIN RELAY
STOP LIGHT SWITCH
BODY INTEGRATED UNIT
(CAN COMMUNICATION)
MASS AIR FLOW & INTAKE AIR
TEMPERATURE SENSOR
M/B FUSE No. 13
FRONT OXYGEN (A/F) SENSOR
FRONT OXYGEN (A/F) SENSOR
STARTER RELAY
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