2004 SUBARU FORESTER Service Repair Manual

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Page 2057 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC 2.5)-33
ENGINE (DIAGNOSTIC)
Subaru Select Monitor
NOTE:
For detailed operation procedure, refer to the “SUBARU SELECT MONITOR OPERATION MANUAL”.
SET/CST switch signal SET/COAST Switch ON

Page 2058 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC 2.5)-34
ENGINE (DIAGNOSTIC)
Read Diagnostic Trouble Code (DTC)
10.Read Diagnostic Trouble
Code (DTC)
A: OPERATION
1. SUBARU SELECT MONITOR (NORMAL
MODE)
1) On the «Main Menu» display scr

Page 2059 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC 2.5)-35
ENGINE (DIAGNOSTIC)
Inspection Mode
11.Inspection Mode
A: OPERATION
Perform the diagnosis on the “Diagnosis Trouble Codes (DTC) List” below.
Refer to the item of drive cycle when

EN(H4DOTC 2.5)-35
ENGINE (DIAGNOSTIC)
Inspection Mode
11.Inspection Mode
A: OPERATION
Perform the diagnosis on the “Diagnosis Trouble Codes (DTC) List” below.
Refer to the item of drive cycle when perform the diagnosis not on the “Diagnosis Trouble Codes (DTC) List”
below.
DTC Item On condition
P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1) —
P0032 HO2S Heater Control Circuit High (Bank 1 Sensor 1) —
P0037 HO2S Heater Control Circuit Low (Bank 1 Sensor 2) —
P0038 HO2S Heater Control Circuit High (Bank 1 Sensor 2) —
P0102 Mass or Volume Air Flow Circuit Low Input —
P0103 Mass or Volume Air Flow Circuit High Input —
P0107 Manifold Absolute Pressure/Barometric Pressure Circuit Low Input —
P0108 Manifold Absolute Pressure/Barometric Pressure Circuit High Input —
P0112 Intake Air Temperature Circuit Low Input —
P0113 Intake Air Temperature Circuit High Input —
P0117 Engine Coolant Temperature Circuit Low Input —
P0118 Engine Coolant Temperature Circuit High Input —
P0122 Throttle/Pedal Position Sensor/Switch “A” Circuit Low Input —
P0123 Throttle/Pedal Position Sensor/Switch “A” Circuit High Input —
P0131 O
2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
—
P0132 O
2 Sensor Circuit High Voltage (Bank 1 Sensor 1)
—
P0137 O
2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)
—
P0138 O
2 Sensor Circuit High Voltage (Bank 1 Sensor 2)
—
P0222 Throttle/Pedal Position Sensor/Switch “B” Circuit Low Input —
P0223 Throttle/Pedal Position Sensor/Switch “B” Circuit High Input —
P0230 Fuel Pump Primary Circuit —
P0245 Turbo/Super Charger Wastegate Solenoid “A” Low —
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) —
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) —
P0335 Crankshaft Position Sensor “A” Circuit —
P0340 Camshaft Position Sensor “A” Circuit (Bank 1 or Single Sensor) —
P0345 Camshaft Position Sensor “A” Circuit (Bank 2) —
P0458 Evaporative Emission Control System Purge Control Valve Circuit Low —
P0459 Evaporative Emission Control System Purge Control Valve Circuit High —
P0462 Fuel Level Sensor Circuit Low Input —
P0463 Fuel Level Sensor Circuit High Input —
P0502 Vehicle Speed Sensor Circuit Low Input —
P0503 Vehicle Speed Sensor Intermittent/Erratic/High —
P0512 Starter Request Circuit—
P0513 Incorrect Immobilizer Key —
P0519 Idle Control System Malfunction (Fail-Safe) —
P0545 Exhaust Gas Temperature Sensor Circuit Low-Bank 1 —
P0600 Serial Communication Link —
P0604 Internal Control Module Random Access Memory (RAM) Error —
P0605 Internal Control Module Read Only Memory (ROM) Error —
P0607 Control Module Performance —
P0638 Throttle Actuator Control Range/Performance (Bank 1) —
P0691 Cooling Fan 1 Control Circuit Low —
P0700 Transmission Control System (MIL Request) —
P0851 Neutral Switch Input Circuit Low —

Page 2060 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC 2.5)-36
ENGINE (DIAGNOSTIC)
Inspection Mode
P0852 Neutral Switch Input Circuit High —
P1086 Tumble Generated Valve Position Sensor 2 Circuit Low —
P1087 Tumble Generated Valve Position S

EN(H4DOTC 2.5)-36
ENGINE (DIAGNOSTIC)
Inspection Mode
P0852 Neutral Switch Input Circuit High —
P1086 Tumble Generated Valve Position Sensor 2 Circuit Low —
P1087 Tumble Generated Valve Position Sensor 2 Circuit High —
P1088 Tumble Generated Valve Position Sensor 1 Circuit Low —
P1089 Tumble Generated Valve Position Sensor 1 Circuit High —
P1091 Tumble Generated Valve System 1 (Valve Close) —
P1093 Tumble Generated Valve System 2 (Valve Close) —
P1094 Tumble Generated Valve Signal 1 Circuit Malfunction (Open) —
P1095 Tumble Generated Valve Signal 1 Circuit Malfunction (Short) —
P1096 Tumble Generated Valve Signal 2 Circuit Malfunction (Open) —
P1097 Tumble Generated Valve Signal 2 Circuit Malfunction (Short) —
P1110 Atmospheric Pressure Sensor Circuit Malfunction (Low Input) —
P1111 Atmospheric Pressure Sensor Circuit Malfunction (High Input) —
P1160 Return Spring Failure—
P1518 Starter Switch Circuit Low Input —
P1544 High exhaust temperature detected —
P1560 Back-Up Voltage Circuit Malfunction —
P1570 ANTENNA—
P1571 Reference Code Incompatibility —
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 Circuit Open (Bank 1) —
P2089 OCV Solenoid Valve Signal A Circuit Short (Bank 1) —
P2092 OCV Solenoid Valve Signal A Circuit Open (Bank 2) —
P2093 OCV Solenoid Valve Signal A Circuit Short (Bank 2) —
P2101 Throttle Actuator Control Motor Circuit Range/Performance —
P2102 Throttle Actuator Control Motor Circuit Low —
P2103 Throttle Actuator Control Motor Circuit High —
P2109 Throttle/Pedal Position Sensor A Minimum Stop Performance —
P2122 Throttle/Pedal Position Sensor/Switch “D” Circuit Low Input —
P2123 Throttle/Pedal Position Sensor/Switch “D” Circuit High Input —
P2127 Throttle/Pedal Position Sensor/Switch “E” Circuit Low Input —
P2128 Throttle/Pedal Position Sensor/Switch “E” Circuit High Input —
P2135 Throttle/Pedal Position Sensor/Switch “A”/“B” Voltage Rationality —
P2138 Throttle/Pedal Position Sensor/Switch “D”/“E” Voltage Rationality —DTC Item On condition

Page 2061 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC 2.5)-37
ENGINE (DIAGNOSTIC)
Inspection Mode
1. PREPARATION FOR THE INSPECTION
MODE
1) Check battery voltage is more than 12 V and fuel
remains half [20 — 402 (5.3 — 10.6 US gal, 4.4 —

Page 2062 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC 2.5)-38
ENGINE (DIAGNOSTIC)
Inspection Mode
5) Connect the Subaru Select Monitor to data link
connector located in the lower portion of the instru-
ment panel (on the driver’s side).
CAUTI

EN(H4DOTC 2.5)-38
ENGINE (DIAGNOSTIC)
Inspection Mode
5) Connect the Subaru Select Monitor to data link
connector located in the lower portion of the instru-
ment panel (on the driver’s side).
CAUTION:
Do not connect the scan tools except for Suba-
ru Select Monitor and OBD-II general scan tool.
6) Turn the ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.
7) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
8) On the «System Selection Menu» display screen,
select the {Engine} and press the [YES] key.
9) Press the [YES] key after the information of en-
gine type was displayed.
10) On the «Engine Diagnosis» screen, select the
{D Check} and press the [YES] key.
11) When the “Perform D Check?” is shown on the
screen, press the [YES] key.
12) Perform subsequent procedures as instructed
on the display screen.
If trouble still remains in the memory, the corre-
sponding DTC appears on the display screen.
NOTE:
For detailed operation procedure, refer to the “SUB-
ARU SELECT MONITOR OPERATION MANUAL”.
For details concerning DTCs, refer to the List of
Diagnostic Trouble Code (DTC).
Trouble Code (DTC).>
Release the parking brake. The speed difference between front and rear
wheels may light either the ABS warning light, but this
indicates no malfunctions. When engine control diag-
nosis is finished, perform the ABS memory clearance
procedure of self-diagnosis function. 23, Clear Memory Mode.>
3. OBD-II GENERAL SCAN TOOL
1) Idle the engine.
2) Connect the test mode connector (A) located at
the lower portion of instrument panel (on the driv-
er’s side).
3) Connect the OBD-II general scan tool to its data
link connector in the lower portion of the instrument
panel (on the driver’s side).
CAUTION:
Do not connect the scan tools except for Suba-
ru Select Monitor and OBD-II general scan tool.
4) Start the engine.
NOTE:
Ensure the select lever is placed in the “P” range
before starting. (AT model)
Depress the clutch pedal when starting the en-
gine. (MT model)
5) Using the select lever or shift lever, turn the “P”
position switch and the “N” position switch to ON.
6) Depress the brake pedal to turn the brake switch
ON. (AT model)
7) Keep the engine speed in the 2,500 — 3,000
rpm range for 40 seconds.
8) Place the select lever or shift lever in the “D”
range (AT model) or “1st” gear (MT model) and
drive the vehicle at 5 to 10 km/h (3 to 6 MPH).
(A) Power switch
EN-02353
EN-00040
(A)
EN-00333
(A)
EN-02353

Page 2063 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC 2.5)-39
ENGINE (DIAGNOSTIC)
Inspection Mode
NOTE:
On AWD vehicles, release the parking brake.
The speed difference between front and rear
wheels may light either the ABS warning light, b

Page 2064 of 2870

SUBARU FORESTER 2004 Service Repair Manual EN(H4DOTC 2.5)-40
ENGINE (DIAGNOSTIC)
Drive Cycle
12.Drive Cycle
A: OPERATION
There are three driving patterns on diagnosis. Following trouble can be diagnosed with driving specified pat-
terns. After

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