2004 SUBARU FORESTER Service Repair Manual

Page 2177 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-153
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AK:DTC P0503 VEHICLE SPEED SENSOR INTERMITTENT/ERRATIC/HIGH
DTC DETECTING CONDITION:
Immediately at fault

Page 2178 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-154
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK SPEEDOMETER OPERATION IN 
COMBINATION METER.Does speedometer operate 
normally?

Page 2179 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-155
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AL:DTC P0512 STARTER REQUEST CIRCUIT
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SY

Page 2180 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-156
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK OPERATION OF STARTER MOTOR.Does the starter motor operate 
when ignition switch

Page 2181 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-157
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AM:DTC P0519 IDLE CONTROL SYSTEM MALFUNCTION (FAIL-SAFE)
DTC DETECTING CONDITION:
Immediately at fault re

Page 2182 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-158
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
WIRING DIAGRAM:
EN-02364
B317
34
12
B22
125678
131415169101112
34
17181920
B21
123
4
56
78
9
1011 12
1314

Page 2183 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-159
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Inspect the rele-
vant DTC

Page 2184 of 2870

SUBARU FORESTER 2004  Service Repair Manual EN(H4DOTC 2.5)-160
ENGINE (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AN:DTC P0545 EXHAUST GAS TEMPERATURE SENSOR CIRCUIT LOW - BANK 1
DTC DETECTING CONDITION:
Immediately at