ENGINE (DIAGNOSTICS)(H4DO) > Inspection Mode

PROCEDURE

Perform the diagnosis shown in the following DTC table.

When performing the diagnosis not listed in “List of Diagnostic Trouble Code (DTC)”, refer the item on the drive cycle.

DTC

Item

Condition

P0011

Intake Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)

P0021

Intake Camshaft Position - Timing Over-Advanced or System Performance (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)

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 Sensor 1 Circuit Low

P0113

Intake Air Temperature Sensor 1 Circuit High

P0117

Engine Coolant Temperature Circuit Low

P0118

Engine Coolant Temperature Circuit High

P0122

Throttle/Pedal Position Sensor/Switch “A” Circuit Low

P0123

Throttle/Pedal Position Sensor/Switch “A” Circuit High

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)

P0222

Throttle/Pedal Position Sensor/Switch “B” Circuit Low

P0223

Throttle/Pedal Position Sensor/Switch “B” Circuit High

P0327

Knock Sensor 1 Circuit Low (Bank 1 or Single Sensor)

P0328

Knock Sensor 1 Circuit High (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)

P0413

Secondary Air Injection System Switching Valve “A” Circuit Open

P0418

Secondary Air Injection System Control “A” Circuit Open

P0458

Evaporative Emission System Purge Control Valve Circuit Low

P0459

Evaporative Emission System Purge Control Valve Circuit High

P0462

Fuel Level Sensor “A” Circuit Low

P0463

Fuel Level Sensor “A” Circuit High

P0502

Vehicle Speed Sensor Circuit Low Input

P0503

Vehicle Speed Sensor Circuit High Input

P0512

Starter Request Circuit

P0513

Incorrect Immobilizer Key

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

Fan 1 Control Circuit Low

P0700

Transmission Control System (MIL Request)

P0851

Park/Neutral Switch Input Circuit Low (AT Model)

P0852

Park/Neutral Switch Input Circuit High (AT Model)

P1160

Return Spring Failure

P1410

Secondary Air Injection System Switching Valve Stuck Open

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

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)

P2100

Throttle Actuator Control Motor Circuit/Open

P2101

Throttle Actuator Control Motor Circuit Range/Performance

P2102

Throttle Actuator Control Motor Circuit Low

P2109

Throttle/Pedal Position Sensor “A” Minimum Stop Performance

P2111

Throttle Actuator Control System - Stuck Open

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 Correlation

P2138

Throttle/Pedal Position Sensor/Switch “D”/“E” Voltage Correlation

P2228

Atmospheric Pressure Sensor Circuit Malfunction (Low Input)

P2229

Atmospheric Pressure Sensor Circuit Malfunction (High Input)

P2432

Secondary Air Injection System Air Flow /Pressure Sensor Circuit Low

P2433

Secondary Air Injection System Air Flow /Pressure Sensor Circuit High

P2444

Secondary Air Injection System Pump Stuck On

P2503

Generator Circuit Low Input

1. PREPARATION FOR THE INSPECTION MODE

1. Check that the battery voltage is 12 V or more and approx. half of fuel remains [20 — 40 L (5.3 — 10.6 US gal, 4.4 — 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 rollers.

WARNING:

Before raising the vehicle, ensure parking brakes are applied.

Do not use a pantograph jack in place of a rigid rack.

Secure a rope or wire to the front or rear towing 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.

(A)

Rigid racks

(B)

Free rollers

2. SUBARU SELECT MONITOR

1. Warm-up the engine.

2. Prepare the Subaru Select Monitor kit.

3. Connect the diagnosis cable to the Subaru Select Monitor.

4. Insert the cartridge to the Subaru Select Monitor.

5. Connect the test mode connector (A) located at the lower portion of instrument panel (on the driver’s side).

(A)

Test mode connector

6. Connect the Subaru Select Monitor to data link connector located in the lower portion of the instrument panel (on the driver’s side).

CAUTION:

Do not connect any scan tools except the Subaru Select Monitor or general scan tool.

7. Turn the ignition switch to ON (engine OFF) and Subaru Select Monitor switch to ON.

(A)

Power switch

8. On the «Main Menu» display screen, select {Each System Check} and press the [YES] key.

9. On the «System Selection Menu» display screen, select {Engine Control System} and press the [YES] key.

10. Press the [YES] key after the information of engine type has been displayed.

11. On the «Engine Diagnosis» display screen, select {D Check} and press the [YES] key.

12. When the “Perform Inspection (Dealer Check) Mode” is shown on the screen, press the [YES] key.

13. Perform subsequent procedures as instructed on the display screen.

If trouble still remains in the memory, the corresponding 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 Diagnostic Trouble Code (DTC)”.

Release the parking brake.

The speed difference between front and rear wheels may illuminate the ABS warning light, but this does not indicate a malfunction. When engine control diagnosis is finished, perform the ABS memory clearance procedure of the self-diagnosis system.

3. GENERAL SCAN TOOL

1. Warm-up the engine.

2. Connect the test mode connector (A) located at the lower portion of instrument panel (on the driver’s side).

3. Connect the general scan tool to data link connector located in the lower portion of the instrument panel (on the driver’s side).

CAUTION:

Do not connect any scan tools except the Subaru Select Monitor or general scan tool.

4. Start the engine.

NOTE:

Make sure the select lever is placed in “P” position before starting. (AT model)

Depress the clutch pedal when starting engine. (MT model)

5. Using the select lever or shift lever, turn the P position switch and N position switch on.

6. Depress the brake pedal to turn the brake switch ON. (AT model)

7. Keep the engine speed in 2,500 — 3,000 rpm range for 40 seconds.

8. Place the select lever or shift lever in D position (AT model) or 1st gear (MT model) and drive the vehicle at 5 — 10 km/h (3 — 6 MPH).

NOTE:

For AWD model, release the parking brake.

The speed difference between front and rear wheels may illuminate the ABS warning light, but this indicates no malfunctions. When engine control diagnosis is finished, perform the ABS memory clearance procedure of the self-diagnosis system.

9. Using the general scan tool, check for 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 Diagnostic Trouble Code (DTC)”.