EN(H6DO)(diag)-34
Read Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
10.Read Diagnostic Trouble
Code (DTC)
A: OPERATION
1. SUBARU SELECT MONITOR (NORMAL
MODE)
1) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display
screen, select the {Engine} and press the [YES]
key.
3) Press the [YES] key after the information of en-
gine type has been displayed.
4) On the «Engine Diagnosis» screen, select the
{DTC Display}, and then press the [YES] key.
5) On the «Diagnostic Code(s) Display» screen,
select the {Current Diagnostic Code(s)} or {History
Diagnostic Code(s)}, and then press the [YES] key.
NOTE:
•For detailed operation procedure, refer to the
“SUBARU SELECT MONITOR OPERATION
MANUAL”.
•For details concerning DTC, refer to “List of Diag-
nostic Trouble Code (DTC)”.
Code (DTC).>
2. SUBARU SELECT MONITOR (OBD
MODE)
1) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display
screen, select the {Engine} and press the [YES]
key.
3) Press the [YES] key after the information of en-
gine type has been displayed.
4) On the «Engine Diagnosis» display screen, se-
lect the {OBD System} and press the [YES] key.
5) On the «OBD Menu» display screen, select the
Diagnostic Code(s) Display and press the [YES]
key.
6) Make sure DTC is shown on the screen.
NOTE:
•For detailed operation procedure, refer to the
“SUBARU SELECT MONITOR OPERATION
MANUAL”.
•For details concerning DTC, refer to “List of Diag-
nostic Trouble Code (DTC)”.
3. GENERAL SCAN TOOL
Refer to the data denoting emission-related power-
train DTC.
For details concerning DTC, refer to “List of Diag-
nostic Trouble Code (DTC)”.
NOTE:
Refer to the general scan tool manufacturer’s oper-
ation manual to access powertrain DTC (MODE
$03).
EN(H6DO)(diag)-35
Inspection Mode
ENGINE (DIAGNOSTICS)
11.Inspection Mode
A: PROCEDURE
When performing the diagnosis not listed in “List of Diagnostic Trouble Code (DTC)”, refer the item on the
drive cycle.
DTC Item On condition
P0011 Intake Camshaft Position Timing - Over-Advanced (Bank 1) —
P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1) —
P0018 Crankshaft Position - Camshaft Position Correlation (Bank 2) —
P0021 Intake Camshaft Position Timing - Over-Advanced (Bank 2) —
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) —
P0051 HO2S Heater Control Circuit Low (Bank 2 Sensor 1) —
P0052 HO2S Heater Control Circuit High (Bank 2 Sensor 1) —
P0057 HO2S Heater Control Circuit Low (Bank 2 Sensor 2) —
P0058 HO2S Heater Control Circuit High (Bank 2 Sensor 2) —
P0077 Intake Valve Control Circuit High (Bank 1) —
P0083 Intake Valve Control Circuit High (Bank 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 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1) —
P0132 O2 Sensor Circuit High Voltage (Bank 1 Sensor 1) —
P0137 O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) —
P0138 O2 Sensor Circuit High Voltage (Bank 1 Sensor 2) —
P0140 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 2) —
P0151 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1) —
P0152 O2 Sensor Circuit High Voltage (Bank 2 Sensor 1) —
P0157 O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2) —
P0158 O2 Sensor Circuit High Voltage (Bank 2 Sensor 2) —
P0160 O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2) —
P0182 Fuel Temperature Sensor “A” Circuit Low Input —
P0183 Fuel Temperature Sensor “A” Circuit High Input —
P0197 Engine Oil Temperature Sensor Circuit Low —
P0198 Engine Oil Temperature Sensor Circuit High —
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 —
P0327 Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor) —
P0328 Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor) —
P0332 Knock Sensor 2 Circuit Low Input (Bank 2) —
P0333 Knock Sensor 2 Circuit High Input (Bank 2) —
P0335 Crankshaft Position Sensor “A” Circuit —
P0336 Crankshaft Position Sensor “A” Circuit Range/Performance —
EN(H6DO)(diag)-36
Inspection Mode
ENGINE (DIAGNOSTICS)
P0340 Camshaft Position Sensor “A” Circuit (Bank 1 or Single Sensor) —
P0345 Camshaft Position Sensor “A” Circuit (Bank 2) —
P0447 Evaporative Emission Control System Vent Control Circuit Open —
P0448 Evaporative Emission Control System Vent Control Circuit Shorted —
P0452 Evaporative Emission Control System Pressure Sensor Low Input —
P0453 Evaporative Emission Control System Pressure Sensor High Input —
P0458 Evaporative Emission Control System Purge Control Valve Circuit Low —
P0462 Fuel Level Sensor Circuit Low Input —
P0463 Fuel Level Sensor Circuit High Input —
P0500 Vehicle Speed Sensor—
P0512 Starter Request Circuit—
P0513 Incorrect Immobilizer Key —
P0519 Idle Control System Malfunction (Fail-Safe) —
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 —
P0692 Cooling Fan 1 Control Circuit High —
P0700 Transmission Control System (MIL Request) —
P1152 O2 Sensor Circuit Range/Performance (Low) (Bank 1 Sensor 1) —
P1153 O2 Sensor Circuit Range/Performance (High) (Bank 1 Sensor 1) —
P1154 O2 Sensor Circuit Range/Performance (Low) (Bank 2 Sensor 1) —
P1155 O2 Sensor Circuit Range/Performance (High) (Bank 2 Sensor 1) —
P1160 Return Spring Failure—
P1518 Starter Switch Circuit Low Input —
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 —
P1578 Meter Failure—
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 —
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 —
P2227 Barometric Pressure Circuit Range/Performance —
P2228 Barometric Pressure Circuit Low Input —
P2229 Barometric Pressure Circuit High Input —
DTC Item On condition
EN(H6DO)(diag)-37
Inspection Mode
ENGINE (DIAGNOSTICS)
1. PREPARATION FOR THE INSPECTION
MODE
1) Check battery voltage is more than 12 V and fuel
remains half [20 to 40 2 (5.3 to 10.6 US gal, 4.4 to
8.8 Imp gal)].
2) Lift-up the vehicle using a garage jack and place
it on rigid racks, or drive the vehicle onto free roll-
ers.
WARNING:
•Before lifting-up the vehicle, ensure parking
brakes are applied.
•Do not use a pantograph jack in place of a rig-
id rack.
•Secure a rope or wire to the front or rear tow-
ing hooks to prevent the lateral runout of front
wheels.
•Do not abruptly depress/release clutch pedal
or accelerator pedal during works even when
the engine is operating at low speeds since this
may cause vehicle to jump off free rollers.
•In order to prevent the vehicle from slipping
due to vibration, do not place any wooden
blocks or similar items between the rigid racks
and vehicle.
•Since the rear wheels will also rotate, do not
place anything near them. Also, make sure that
nobody goes in front of the vehicle.
2. SUBARU SELECT MONITOR
1) After clearing the memory, check for any remain-
ing unresolved trouble data.
2) Idle the engine.
3) Prepare the Subaru Select Monitor kit.
eral Description.>
4) Connect the diagnosis cable to Subaru Select
Monitor.
5) Insert the cartridge to Subaru Select Monitor.
6) Connect the test mode connector (A) located un-
der the glove box.
(A) Rigid racks
(B) Free rollers
EN-00041
(A)
(B)
EN-00038
EN-00039
EN-03694
(4)
EN(H6DO)(diag)-38
Inspection Mode
ENGINE (DIAGNOSTICS)
7) Connect the Subaru Select Monitor to the data
link connector at the lower portion of instrument
panel (on the driver's side).
CAUTION:
Do not connect any scan tools except Subaru
Select Monitor or general scan tool.
8) Turn the ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.
9) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
10) On the «System Selection Menu» display
screen, select the {Engine} and press the [YES]
key.
11) Press the [YES] key after the information of en-
gine type has been displayed.
12) On the «Engine Diagnosis» display screen, se-
lect the {D Check} and press the [YES] key.
13) When the “Perform D Check?” is shown on the
screen, press the [YES] key.
14) 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
“SUBARU SELECT MONITOR OPERATION
MANUAL”.
•For details concerning DTC, refer to “List of Di-
agnostic Trouble Code (DTC)”.
•Release the parking brake.
•The speed difference between front and rear
wheels may light the ABS warning light, but this
indicates no malfunctions. When engine control
diagnosis is finished, perform the ABS memory
clearance procedure of self-diagnosis function.
3. GENERAL SCAN TOOL
1) After performing the diagnostics and clearing the
memory, check for any remaining unresolved trou-
ble data.
2) Idle the engine.
3) Connect the test mode connector (A) located un-
der the glove box.
4) Connect the Subaru Select Monitor to the data
link connector at the lower portion of instrument
panel (on the driver’s side).
CAUTION:
Do not connect any scan tools except Subaru
Select Monitor or general scan tool.
(A) Power switch
EN-03693
(A)
EN-00040
EN-03694
(4)
EN-03693
EN(H6DO)(diag)-39
Inspection Mode
ENGINE (DIAGNOSTICS)
5) Start the engine.
NOTE:
Make sure the select lever is placed in “P” position
before starting.
6) Using the select lever, turn the “P” position
switch and the “N” position switch to ON.
7) Depress the brake pedal to turn brake switch
ON.
8) Keep the engine speed in 2,500 — 3,000 rpm
range for 40 seconds.
9) Shift the select lever in the “D” range and drive
the vehicle at 5 to 10 km/h (3 to 6 MPH).
NOTE:
•For AWD model, release the parking brake.
•The speed difference between front and rear
wheels may light the ABS warning light, but this in-
dicates no malfunctions. When engine control diag-
nosis is finished, perform the ABS memory
clearance procedure of self-diagnosis system.
10) Using the general scan tool, check DTC and
record the result(s).
NOTE:
•For detailed operation procedure, refer to the
general scan tool operation manual.
•For details concerning DTC, refer to “List of Diag-
nostic Trouble Code (DTC)”.
EN(H6DO)(diag)-40
Drive Cycle
ENGINE (DIAGNOSTICS)
12.Drive Cycle
A: PROCEDURE
For the troubleshooting, there are five driving pat-
terns of drive cycles A to E. Driving in the specified
pattern allows to diagnose malfunctioning items
listed below. After the repair of the following trouble
items, be sure to drive the vehicle with the specified
drive patterns to check whether the function is re-
sumed correctly.
1. PREPARATION FOR DRIVE CYCLE
1) Check battery voltage is more than 12 V and fuel
remains half [20 to 40 2 (5.3 to 10.6 US gal, 4.4 to
8.8 Imp gal)].
2) After performing the diagnostics and clearing the
memory, check for any remaining unresolved trou-
ble data.
3) Disconnect the test mode connectors.
NOTE:
•Perform the diagnosis after warming up the en-
gine except when the engine coolant temperature
at starting is specified.
•Perform the diagnosis twice if the DTC marked
with *. After completing the first diagnosis, stop the
engine and perform second diagnosis in same con-
dition.
EN(H6DO)(diag)-41
Drive Cycle
ENGINE (DIAGNOSTICS)
2. DRIVE CYCLE A — DRIVE THE VEHICLE WITH 80 KM/H (50 MPH) FOR 20 MINUTES, AND
THEN IDLE THE ENGINE FOR A MINUTE.
DTC Item On condition
*P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control
Engine coolant temperature at
engine start is 20°C (68°F) or
less.
*P0128Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Tem-
perature)—
*P0133 O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) —
*P0153 O2 Sensor Circuit Slow Response (Bank 2 Sensor 1) —
*P0171 System Too Lean (Bank 1)Complete diagnosis for drive
cycle B or C
*P0172 System Too Rich (Bank 1)Complete diagnosis for drive
cycle B or C
*P0174 System Too Lean (Bank 2)Complete diagnosis for drive
cycle B or C
*P0175 System Too Rich (Bank 2)Complete diagnosis for drive
cycle B or C
*P0196 Engine Oil Temperature Sensor Circuit Range/performance —
*P0301 Cylinder 1 Misfire DetectedComplete diagnosis for drive
cycle B or C
*P0302 Cylinder 2 Misfire DetectedComplete diagnosis for drive
cycle B or C
*P0303 Cylinder 3 Misfire DetectedComplete diagnosis for drive
cycle B or C
*P0304 Cylinder 4 Misfire DetectedComplete diagnosis for drive
cycle B or C
*P0305 Cylinder 5 Misfire DetectedComplete diagnosis for drive
cycle B or C
*P0306 Cylinder 6 Misfire DetectedComplete diagnosis for drive
cycle B or C
*P0420 Catalyst System Efficiency Below Threshold (Bank 1) —
*P0442 Evaporative Emission Control System Leak Detected (Small Leak)
Engine coolant temperature at
engine start is 25°C (77°F) or
less.
*P0451 Evaporative Emission Control System Pressure Sensor —
*P0456 Evaporative Emission Control System Leak Detected (Very Small Leak)
Engine coolant temperature at
engine start is 25°C (77°F) or
less.
*P0457 Evaporative Emission Control System Leak Detected (Fuel Cap Loose/ Off)
Engine coolant temperature at
engine start is 25°C (77°F) or
less.
*P0464 Fuel Level Sensor Circuit Intermittent —
P1443 Vent Control Solenoid Valve Function Problem —
*P2096 Post Catalyst Fuel Trim System Too Lean (Bank 1)Complete diagnosis for drive
cycle B or C
*P2097 Post Catalyst Fuel Trim System Too Rich (Bank 1)Complete diagnosis for drive
cycle B or C
*P2098 Post Catalyst Fuel Trim System Too Lean (Bank 2)Complete diagnosis for drive
cycle B or C
*P2099 Post Catalyst Fuel Trim System Too Rich (Bank 2)Complete diagnosis for drive
cycle B or C
P2103 Throttle Actuator Control Motor Circuit HighComplete diagnosis for drive
cycle B or C