SUBARU FORESTER 2004 Service Repair Manual
Manufacturer: SUBARU, Model Year: 2004, Model line: FORESTER, Model: SUBARU FORESTER 2004Pages: 2870, PDF Size: 38.67 MB
Page 1701 of 2870
EN(H4DOTC)-71
ENGINE (DIAGNOSTIC)
Diagnostics for Engine Starting Failure
F: FUEL INJECTOR CIRCUIT
CAUTION:
Check or repair only faulty parts.
After repair or replacement of faulty parts, conduct Clear Memory Mode
WIRING DIAGRAM:
LHD model
EN-02318
BATTERY
FUEL INJECTORS MAIN RELAY
E#4
1 2
SBF-5
#3
1
2
#2
1
2
F60
#1
1 2
1
9
10
11
12
6
7
8
9
6
5
4
3
1
7
12123
4
56
78
9
1011 12
1314 15 16
6
4
5
3
2
1
F60
F74
B136F74
B200
E5
E5
E3
E6
E6
E16
E16
E17
F44
F2
B100
B47
B61F44
E17
12345678
F2B47
34
12
56
56
782 1
94 310
24 22 23 2511 12 13
1415
26 27
2816
17 18 19 20 21
33 34 29
32 30
31 3534 12 8910 11
12 13 14 15 16 17 18 19 20 21 22 23 2456 7
1234 5678910 11 12 13 14 15 16 17 18 19 20
B136
ECM
Page 1702 of 2870
EN(H4DOTC)-72
ENGINE (DIAGNOSTIC)
Diagnostics for Engine Starting Failure
RHD model
EN-02319
BATTERY
FUEL INJECTORS MAIN RELAY
E#4
1 2
SBF-5
#3
1
2
#2
1 2
#1
1
2
1
9
10
11
12
12
12
7
8956 3410 11 12
19 20 2113 14 1516
17 1822
23
24123
4
56
78
9
1011 12
1314 15 16
6
4
5
3
2
1
B21
B21B136E5
E5
F2
E6
E6
E16
E16
E17
B47
E17
6
5
4
3
B136ECM
B47
34
12
56
Page 1703 of 2870
EN(H4DOTC)-73
ENGINE (DIAGNOSTIC)
Diagnostics for Engine Starting Failure
Step Check Yes No
1 CHECK OPERATION OF EACH FUEL INJEC-
TOR.
While cranking the engine, check that each
fuel injector emits operating sound.Use a
sound scope or attach a screwdriver to the
injector for this check.Does the fuel pump produce
operating sound?Check the fuel
pressure.
INSPECTION,
Fuel Pressure.>Go to step 2.
2 CHECK POWER SUPPLY TO EACH FUEL
INJECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from fuel injector.
3) Turn the ignition switch to ON.
4) Measure the power supply voltage between
fuel injector terminal and engine ground.
Connector & terminal
#1 (E5) No. 2 (+) — Engine ground (
−):
#2 (E16) No. 2 (+) — Engine ground (
−):
#3 (E6) No. 2 (+) — Engine ground (
−):
#4 (E17) No. 2 (+) — Engine ground (
−):Is the voltage more than 10 V? Go to step 3.Repair the har-
ness and connec-
tor.
N
OTE:
In this case repair
the following:
Open circuit in
harness between
main relay and fuel
injector connector
Poor contact in
main relay connec-
tor
Poor contact in
coupling connector
Poor contact in
fuel injector con-
nector
3 CHECK HARNESS BETWEEN ECM AND
FUEL INJECTOR CONNECTOR.
1) Disconnect the connector from ECM.
2) Measure the resistance of harness
between ECM and fuel injector connector.
Connector & terminal
(B136) No. 6 — (E5) No. 1:
(B136) No. 5 — (E16) No. 1:
(B136) No. 4 — (E6) No. 1:
(B136) No. 3 — (E6) No. 1:Is the resistance less than 1
Ω?Go to step 4.Repair the har-
ness and connec-
tor.
NOTE:
In this case repair
the following:
Open circuit in
harness between
ECM and fuel
injector connector
Poor contact in
coupling connector
4 CHECK HARNESS BETWEEN ECM AND
FUEL INJECTOR CONNECTOR.
Measure the resistance of harness between
ECM and fuel injector connector.
Connector & terminal
(B136) No. 6 — Chassis ground:
(B136) No. 5 — Chassis ground:
(B136) No. 4 — Chassis ground:
(B136) No. 3 — Chassis ground:Is the resistance less than 1
Ω?Repair ground
short circuit in har-
ness between
ECM and fuel
injector connector.Go to step 5.
5 CHECK EACH FUEL INJECTOR.
1) Turn the ignition switch to OFF.
2) Measure the resistance between each fuel
injector terminals.
Te r m i n a l s
No. 1 — No. 2:Is the resistance 5 — 20 Ω? Go to step 6.Replace the faulty
fuel injector.
6 CHECK POOR CONTACT.
Check poor contact in ECM connector.Is there poor contact in ECM
connector?Repair the poor
contact in ECM
connector.Inspection using
“General Diagnos-
tic Table”
295, INSPEC-
TION, General
Diagnostic Table.>
Page 1704 of 2870
EN(H4DOTC)-74
ENGINE (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
18.List of Diagnostic Trouble Code (DTC)
A: LIST
DTC Item NOTE
P0011 A Camshaft Position-Timing Over-
Advanced or System Performance
(Bank 1)
Procedure with Diagnostic Trouble Code (DTC).>
P0021 A Camshaft Position-Timing Over-
Advanced or System Performance
(Bank 2)
Procedure with Diagnostic Trouble Code (DTC).>
P0030 HO2S Heater Control Circuit (Bank
1 Sensor 1)
Code (DTC).>
P0031 HO2S Sensor Circuit Low Voltage
(Bank 1 Sensor 1)
Code (DTC).>
P0032 HO2S Sensor Circuit High Voltage
(Bank 1 Sensor 1)
Code (DTC).>
P0037 HO2S Sensor Circuit Low Voltage
(Bank 1 Sensor 2)
Code (DTC).>
P0038 HO2S Sensor Circuit High Voltage
(Bank 1 Sensor 2)
Code (DTC).>
P0068 Manifold Pressure Sensor Range/
Performance
Code (DTC).>
P0101 Mass or Volume Air Flow Circuit
Range/Performance
ble Code (DTC).>
P0102 Mass or Volume Air Flow Circuit
Low Input
(DTC).>
P0103 Mass or Volume Air Flow Circuit
High Input
(DTC).>
P0107 Manifold Absolute Pressure/Baro-
metric Pressure Circuit Low Input
cedure with Diagnostic Trouble Code (DTC).>
P0108 Manifold Absolute Pressure/Baro-
metric Pressure Circuit High Input
(DTC).>
P0111 Intake Air Temperature Circuit
Range/Performance
ble Code (DTC).>
P0112 Intake Air Temperature Circuit Low
Input
(DTC).>
P0113 Manifold Absolute Pressure/Baro-
metric Pressure Circuit High Input
(DTC).>
P0117 Engine Coolant Temperature Cir-
cuit Low Input
Code (DTC).>
P0118 Engine Coolant Temperature Cir-
cuit High Input
Code (DTC).>
Page 1705 of 2870
EN(H4DOTC)-75
ENGINE (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
P0121 Throttle/Pedal Position Sensor/
Switch “A” Circuit Range/Perfor-
mance
cedure with Diagnostic Trouble Code (DTC).>
P0122 Throttle/Pedal Position Sensor/
Switch “A” Circuit Low Input
Diagnostic Trouble Code (DTC).>
P0123 Throttle/Pedal Position Sensor/
Switch “A” Circuit High Input
Diagnostic Trouble Code (DTC).>
P0125 Insufficient Coolant Temperature
For Closed Loop Fuel Control
with Diagnostic Trouble Code (DTC).>
P0129 Barometric Pressure Too Low
P0131 O
2 Sensor Circuit Low Voltage
(Bank 1 Sensor 1)
Code (DTC).>
P0132 O
2 Sensor Circuit High Voltage
(Bank 1 Sensor 1)
Trouble Code (DTC).>
P0133 O
2 Sensor Circuit Slow Response
(Bank 1 Sensor 1)
Trouble Code (DTC).>
P0134 O
2 Sensor Circuit No Activity
Detected (Bank 1 Sensor 1)
tic Trouble Code (DTC).>
P0137 O
2 Sensor Circuit Low Voltage
(Bank 1 Sensor 2)
Code (DTC).>
P0138 O
2 Sensor Circuit High Voltage
(Bank 1 Sensor 2)
Trouble Code (DTC).>
P0139 O
2 Sensor Circuit Slow Response
(Bank 1 Sensor 2)
Trouble Code (DTC).>
P0171 System Too Lean (Bank 1)
P0172 System Too Rich (Bank 1)
P0230 Fuel Pump Primary Circuit
P0244 Turbo/Super Charger Wastegate
Solenoid “A” Range/Performance
dure with Diagnostic Trouble Code (DTC).>
P0245 Turbo/Super Charger Wastegate
Solenoid “A” Low
Trouble Code (DTC).>
P0246 Turbo/Super Charger Wastegate
Solenoid “A” High
Trouble Code (DTC).>
P0301 Cylinder 1 Misfire Detected
P0302 Cylinder 2 Misfire Detected
P0303 Cylinder 3 Misfire Detected
Page 1706 of 2870
EN(H4DOTC)-76
ENGINE (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
P0304 Cylinder 4 Misfire Detected
P0327 Knock Sensor 1 Circuit Low Input
(Bank 1 or Single Sensor)
nostic Trouble Code (DTC).>
P0328 Knock Sensor 1 Circuit High Input
(Bank 1 or Single Sensor)
nostic Trouble Code (DTC).>
P0335 Crankshaft Position Sensor “A” Cir-
cuit
(DTC).>
P0336 Crankshaft Position Sensor “A” Cir-
cuit Range/Performance
Diagnostic Trouble Code (DTC).>
P0340 Camshaft Position Sensor “A” Cir-
cuit (Bank 1 or Single Sensor)
Diagnostic Trouble Code (DTC).>
P0341 Camshaft Position Sensor “A” Cir-
cuit Range/Performance (Bank 1 or
Single Sensor)
Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0365 Camshaft Position Sensor “B” Cir-
cuit (Bank 1)
(DTC).>
P0390 Camshaft Position Sensor “B” Cir-
cuit (Bank 2)
(DTC).>
P0420 Catalyst System Efficiency Below
Threshold (Bank 1)
Trouble Code (DTC).>
P0458 Evaporative Emission Control Sys-
tem Purge Control Valve Circuit
Low
cedure with Diagnostic Trouble Code (DTC).>
P0459 Evaporative Emission Control Sys-
tem Purge Control Valve Circuit
High
Procedure with Diagnostic Trouble Code (DTC).>
P0461 Fuel Level Sensor Circuit Range/
Performance
Code (DTC).>
P0462 Fuel Level Sensor Circuit Low
Input
P0463 Fuel Level Sensor Circuit High
Input
P0464 Fuel Level Sensor Circuit Intermit-
tent
(DTC).>
P0483 Cooling Fan Rationality Check
P0502 Vehicle Speed Sensor Circuit Low
Input
(DTC).>
P0503 Vehicle Speed Sensor Intermittent/
Erratic/High
(DTC).>
P0506 Idle Control System RPM Lower
Than Expected
Code (DTC).> DTC Item NOTE
Page 1707 of 2870
EN(H4DOTC)-77
ENGINE (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
P0507 Idle Control System RPM Higher
Than Expected
Code (DTC).>
P0508 Idle Control System Circuit Low
P0509 Idle Control System Circuit High
P0512 Starter Request Circuit
P0513 Incorrect Immobilizer Key
P0519 Idle Control System Malfunction
(Fail-Safe)
Code (DTC).>
P0545 Exhaust Gas Temperature Sensor
Circuit Low - Bank 1
Trouble Code (DTC).>
P0546 Exhaust Gas Temperature Sensor
Circuit High - Bank 1
Code (DTC).>
P0558 Generator Circuit Low Input
P0559 Generator Circuit High Input
P0600 Serial Communication Link
P0604 Internal Control Module Random
Access Memory (RAM) Error
nostic Trouble Code (DTC).>
P0691 Cooling Fan 1 Control Circuit Low
P0692 Cooling Fan 1 Control Circuit High
P0700 Transmission Control System (MIL
Request)
(DTC).>
P0851 Neutral Switch Input Circuit Low
Code (DTC).> or
Diagnostic Trouble Code (DTC).>
P0852 Neutral Switch Input Circuit High
Code (DTC).> or
Diagnostic Trouble Code (DTC).>
P1086 Tumble Generated Valve Position
Sensor 2 Circuit Low
tic Trouble Code (DTC).>
P1087 Tumble Generated Valve Position
Sensor 2 Circuit High
tic Trouble Code (DTC).>
P1088 Tumble Generated Valve Position
Sensor 1 Circuit Low
tic Trouble Code (DTC).> DTC Item NOTE
Page 1708 of 2870
EN(H4DOTC)-78
ENGINE (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
P1089 Tumble Generated Valve Position
Sensor 1 Circuit High
tic Trouble Code (DTC).>
P1090 Tumble Generated Valve System 1
(Valve Open)
Code (DTC).>
P1091 Tumble Generated Valve System 1
(Valve Close)
Code (DTC).>
P1092 Tumble Generated Valve System 2
(Valve Open)
Code (DTC).>
P1093 Tumble Generated Valve System 2
(Valve Close)
Code (DTC).>
P1094 Tumble Generated Valve Signal 1
Circuit Malfunction (Open)
Diagnostic Trouble Code (DTC).>
P1095 Tumble Generated Valve Signal 1
Circuit Malfunction (Short)
Diagnostic Trouble Code (DTC).>
P1096 Tumble Generated Valve Signal 2
Circuit Malfunction (Open)
Diagnostic Trouble Code (DTC).>
P1097 Tumble Generated Valve Signal 2
Circuit Malfunction (Short)
Diagnostic Trouble Code (DTC).>
P1110 Atmospheric Pressure Sensor Cir-
cuit Malfunction (Low Input)
Diagnostic Trouble Code (DTC).>
P1111 Atmospheric Pressure Sensor Cir-
cuit Malfunction (High Input)
Diagnostic Trouble Code (DTC).>
P1152 O
2 Sensor Circuit Range/Perfor-
mance (Low) (Bank 1 Sensor 1)
Diagnostic Trouble Code (DTC).>
P1153 O
2 Sensor Circuit Range/Perfor-
mance (High) (Bank 1 Sensor 1)
Diagnostic Trouble Code (DTC).>
P1301 Misfire Detected (High Tempera-
ture Exhaust Gas)
Code (DTC).>
P1312 Exhaust Gas Temperature Sensor
Malfunction
ble Code (DTC).>
P1518 Starter Switch Circuit Low Input
P1544 Exhaust Gas Temperature Too
High
P1560 Back-Up Voltage Circuit Malfunc-
tion
(DTC).>
P1570 ANTENNA
P1571 Reference Code Incompatibility
Page 1709 of 2870
EN(H4DOTC)-79
ENGINE (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
P1572 IMM Circuit Failure (Except
Antenna Circuit)
P1574 Key Communication Failure
P1576 EGI Control Module EEPROM
P1577 IMM Control Module EEPROM
P2088 OCV Solenoid Valve Signal A Cir-
cuit Open (Bank 1)
Code (DTC).>
P2089 OCV Solenoid Valve Signal A Cir-
cuit Short (Bank 1)
Code (DTC).>
P2092 OCV Solenoid Valve Signal A Cir-
cuit Open (Bank 2)
Code (DTC).>
P2093 OCV Solenoid Valve Signal A Cir-
cuit Short (Bank 2)
Code (DTC).> DTC Item NOTE
Page 1710 of 2870
FUJI HEAVY INDUSTRIES LTD. G8080GE3
2004 FORESTER SERVICE MANUAL QUICK REFERENCE INDEX
ENGINE SECTION 2
This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reas-
sembling, inspection and adjustment of
components and diagnostics for guid-
ance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.
All information, illustration and specifi-
cations contained in this manual are
based on the latest product information
available at the time of publication
approval.FUEL INJECTION (FUEL SYSTEM) FU(H4DOTC)
EMISSION CONTROL
(AUX. EMISSION CONTROL DEVICE)EC(H4DOTC)
INTAKE (INDUCTION) IN(H4DOTC)
MECHANICAL ME(H4DOTC)
EXHAUST EX(H4DOTC)
COOLING CO(H4DOTC)
LUBRICATION LU(H4DOTC)
SPEED CONTROL SYSTEM SP(H4DOTC)
IGNITION IG(H4DOTC)
STARTING/CHARGING SYSTEM SC(H4DOTC)
ENGINE (DIAGNOSTIC) EN(H4DOTC)