Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU1998LEGACY BRIGHTON WAGON AWD F4-2.2L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTLOCATIONSPART 1 OF 2
1998 Subaru Legacy Brighton Wagon AWD F4-2.2L SOHC
Part 1 of 2
1998 Subaru Legacy Brighton Wagon AWD F4-2.2L SOHCSECTION Part 1 of 2
ELECTRICAL COMPONENTS LOCATION
ENGINE (2200cc FWD MODEL)





1. MODULE
(1) Engine control module (ECM)
(2) Data link connector (for Subaru select monitor only)
(3) Data link connector (for Subaru select monitor and OBD-II general scan tool)
(4) Test mode connector
(5) CHECK ENGINE malfunction indicator lamp (MIL)













2. SENSOR
(1) Pressure sensor
(2) Mass air flow sensor
(3) Engine coolant temperature sensor
(4) Throttle position sensor
(5) Knock sensor
(6) Camshaft position sensor
(7) Crankshaft position sensor
(1) Front oxygen sensor
(2) Rear oxygen sensor
(3) Front catalytic converter
(4) Rear catalytic converter















3. SOLENOID VALVE, EMISSION CONTROL SYSTEM PARTS AND IGNITION SYSTEM PARTS
(1) Pressure sources switching solenoid valve
(2) Idle air control solenoid valve
(3) EGR valve (Except 2200 cc MT vehicles)
(4) EGR control solenoid valve (Except 2200 cc MT vehicles)
(5) Purge control solenoid valve
(6) Ignitor
(7) Ignition coil
(1) Inhibitor switch (AT vehicles only)
(2) Fuel pump
(3) Main relay
(4) Fuel pump relay
(5) Radiator main fan relay 1 (With A/C models only)
(6) Radiator main fan relay 2 (With A/C models only)
(7) Radiator sub fan relay 1 (With A/C models)
Main fan relay (Without A/C models)
(8) Radiator sub fan relay 2 (With A/C models only)
(9) Starter
ENGINE (2200cc FWD MODEL)
1. MODULE
(1) Engine control module (ECM)
(2) Data link connector (for Subaru select monitor only)
(3) Data link connector (for Subaru select monitor and OBD-II general scan tool)
(4) Test mode connector
(5) CHECK ENGINE malfunction indicator lamp (MIL)
2. SENSOR
(1) Pressure sensor
(2) Mass air flow sensor
(3) Engine coolant temperature sensor
(4) Throttle position sensor
(5) Knock sensor
(6) Camshaft position sensor
(7) Crankshaft position sensor
(1) Front oxygen sensor
(2) Rear oxygen sensor
(3) Front catalytic converter
(4) Rear catalytic converter
3. SOLENOID VALVE, EMISSION CONTROL SYSTEM PARTS AND IGNITION SYSTEM PARTS
(1) Pressure sources switching solenoid valve
(2) Idle air control solenoid valve
(3) EGR valve (Except 2200 cc MT vehicles)
(4) EGR control solenoid valve (Except 2200 cc MT vehicles)
(5) Purge control solenoid valve
(6) Ignitor
(7) Ignition coil
(1) Inhibitor switch (AT vehicles only)
(2) Fuel pump
(3) Main relay
(4) Fuel pump relay
(5) Radiator main fan relay 1 (With A/C models only)
(6) Radiator main fan relay 2 (With A/C models only)
(7) Radiator sub fan relay 1 (With A/C models)
Main fan relay (Without A/C models)
(8) Radiator sub fan relay 2 (With A/C models only)
(9) Starter
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.