2004 SUBARU FORESTER engine oil

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Page 2037 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-13
ENGINE (DIAGNOSTIC)
Electrical Component Location
 SOLENOID VALVE, ACTUATOR, EMISSION CONTROL SYSTEM PARTS AND IGNITION SYSTEM
PARTS
(1) Wastegate control solenoid valve (3) Ignitio

Page 2043 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-19
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
Radiator fan relay 2 con-
trolB135 24ON: 0.5, or less
OFF: 10 — 13ON: 0.5, or less
OFF: 13 — 14Model with A/C only
Malf

Page 2044 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-20
ENGINE (DIAGNOSTIC)
Engine Control Module (ECM) I/O Signal
Electronic throttle con-
trol motor (+)B137 5 Duty waveform Duty waveform Drive frequency: 500 Hz
Electronic throttle con-

Page 2083 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-59
ENGINE (DIAGNOSTIC)
Diagnostics for Engine Starting Failure
D: IGNITION CONTROL SYSTEM
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4D

Page 2084 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-60
ENGINE (DIAGNOSTIC)
Diagnostics for Engine Starting Failure
Step Check Yes No
1 CHECK SPARK PLUG CONDITION.
1) Remove the spark plug. <Ref. to 
IG(H4DOTC)-6, INSTALLATION, Spark Plug

Page 2085 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-61
ENGINE (DIAGNOSTIC)
Diagnostics for Engine Starting Failure
6 CHECK HARNESS BETWEEN ECM AND IG-
NITION COIL & IGNITOR ASSY CONNEC-
TOR.
Measure the resistance of harness between 
ECM

Page 2240 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-216
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BT:DTC P2088 OCV SOLENOID VALVE SIGNAL A CIRCUIT OPEN (BANK 1)
DTC DETECTING CONDITION:
Two consecutive d

Page 2241 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-217
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK HARNESS BETWEEN ECM AND OIL 
FLOW CONTROL SOLENOID VALVE.
1) Turn the ignition