Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2008 Subaru Outback F4-2.5L SOHCFACTORY OEM SERVICE PROCEDURE
Subaru Select Monitor
Subaru Select Monitor
OPERATION
1. HOW TO USE THE SUBARU SELECT MONITOR
1. Prepare the Subaru Select Monitor kit.

2. Prepare the personal computer which has been installed the Subaru Select Monitor.
3. Connect the USB cable between SDI (Subaru Diagnosis Interface) and USB port on the personal computer (dedicated port for the Subaru Select Monitor).
NOTE: The dedicated port for the Subaru Select Monitor means the USB port which was used to install the Subaru Select Monitor.
4. Connect the diagnosis cable to the SDI.
5. Connect the SDI to data link connector located in the lower portion of the instrument panel (on the driver's side).

CAUTION: Do not connect the scan tools except for Subaru Select Monitor and general scan tool.
6. Start up the personal computer.
7. Turn the ignition switch to ON (engine OFF), and run the "PC application help for Subaru Select Monitor".
8. Call up DTC and data, then record them.
NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
2. READ DIAGNOSTIC TROUBLE CODE (DTC) FOR ENGINE (NORMAL MODE)
Refer to "Read Diagnostic Trouble Code" for information about how to indicate DTC. Read Diagnostic Trouble Code (DTC)
3. READ DIAGNOSTIC TROUBLE CODE (DTC) FOR ENGINE (OBD MODE)
Refer to "Read Diagnostic Trouble Code" for information about how to indicate DTC. Read Diagnostic Trouble Code (DTC)
4. READ CURRENT DATA FOR ENGINE (NORMAL MODE)
1. On the [[Main Menu]] display screen, select the {Each System Check}.
2. On the [[System Selection Menu]] display screen, select the {Engine Control System}.
3. Click the [OK] button after the information of engine type has been displayed.
4. On the [[Engine Diagnosis]] display screen, select the {Current Data Display & Save}.
5. On the [[Current Data Display & Save]] display screen, select the {Normal sampling}.
6. Using the scroll key, scroll the display screen up or down until the desired data is shown.
- A list of the support data is shown in the following table.



NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
5. READ CURRENT DATA FOR ENGINE (OBD MODE)
1. On the [[Main Menu]] display screen, select the {Each System Check}.
2. On the [[System Selection Menu]] display screen, select the {Engine Control System}.
3. Click the [OK] button after the information of engine type has been displayed.
4. On the [[Engine Diagnosis]] display screen, select the {OBD System}.
5. On the [[OBD Menu]] display screen, select the {Current Data Display & Save}.
6. On the [[Current Data Display & Save]] display screen, select the {All Data Display}.
7. Using the scroll key, scroll the display screen up or down until the desired data is shown.
- A list of the support data is shown in the following table.



NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
6. READ FREEZE FRAME DATA FOR ENGINE (OBD MODE)
1. On the [[Main Menu]] display screen, select the {Each System Check}.
2. On the [[System Selection Menu]] display screen, select the {Engine Control System}.
3. Click the [OK] button after the information of engine type has been displayed.
4. On the [[Engine Diagnosis]] display screen, select the {OBD System}.
5. On the [[OBD Menu]] display screen, select the {Freeze Frame Data Display}.
- A list of the support data is shown in the following table.

NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
7. V.I.N REGISTRATION
1. On the [[Main Menu]] display screen, select the {Each System Check}.
2. On the [[System Selection Menu]] display screen, select the {Engine Control System}.
3. Click the [OK] button after the information of engine type has been displayed.
4. On the [[Engine Diagnosis]] display screen, select the {V.I.N. Registration}.
5. Perform the procedures shown on the display screen.
NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
OPERATION
1. HOW TO USE THE SUBARU SELECT MONITOR
1. Prepare the Subaru Select Monitor kit.
2. Prepare the personal computer which has been installed the Subaru Select Monitor.
3. Connect the USB cable between SDI (Subaru Diagnosis Interface) and USB port on the personal computer (dedicated port for the Subaru Select Monitor).
NOTE: The dedicated port for the Subaru Select Monitor means the USB port which was used to install the Subaru Select Monitor.
4. Connect the diagnosis cable to the SDI.
5. Connect the SDI to data link connector located in the lower portion of the instrument panel (on the driver's side).
CAUTION: Do not connect the scan tools except for Subaru Select Monitor and general scan tool.
6. Start up the personal computer.
7. Turn the ignition switch to ON (engine OFF), and run the "PC application help for Subaru Select Monitor".
8. Call up DTC and data, then record them.
NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
2. READ DIAGNOSTIC TROUBLE CODE (DTC) FOR ENGINE (NORMAL MODE)
Refer to "Read Diagnostic Trouble Code" for information about how to indicate DTC. Read Diagnostic Trouble Code (DTC)
3. READ DIAGNOSTIC TROUBLE CODE (DTC) FOR ENGINE (OBD MODE)
Refer to "Read Diagnostic Trouble Code" for information about how to indicate DTC. Read Diagnostic Trouble Code (DTC)
4. READ CURRENT DATA FOR ENGINE (NORMAL MODE)
1. On the [[Main Menu]] display screen, select the {Each System Check}.
2. On the [[System Selection Menu]] display screen, select the {Engine Control System}.
3. Click the [OK] button after the information of engine type has been displayed.
4. On the [[Engine Diagnosis]] display screen, select the {Current Data Display & Save}.
5. On the [[Current Data Display & Save]] display screen, select the {Normal sampling}.
6. Using the scroll key, scroll the display screen up or down until the desired data is shown.
- A list of the support data is shown in the following table.
NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
5. READ CURRENT DATA FOR ENGINE (OBD MODE)
1. On the [[Main Menu]] display screen, select the {Each System Check}.
2. On the [[System Selection Menu]] display screen, select the {Engine Control System}.
3. Click the [OK] button after the information of engine type has been displayed.
4. On the [[Engine Diagnosis]] display screen, select the {OBD System}.
5. On the [[OBD Menu]] display screen, select the {Current Data Display & Save}.
6. On the [[Current Data Display & Save]] display screen, select the {All Data Display}.
7. Using the scroll key, scroll the display screen up or down until the desired data is shown.
- A list of the support data is shown in the following table.
NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
6. READ FREEZE FRAME DATA FOR ENGINE (OBD MODE)
1. On the [[Main Menu]] display screen, select the {Each System Check}.
2. On the [[System Selection Menu]] display screen, select the {Engine Control System}.
3. Click the [OK] button after the information of engine type has been displayed.
4. On the [[Engine Diagnosis]] display screen, select the {OBD System}.
5. On the [[OBD Menu]] display screen, select the {Freeze Frame Data Display}.
- A list of the support data is shown in the following table.
NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
7. V.I.N REGISTRATION
1. On the [[Main Menu]] display screen, select the {Each System Check}.
2. On the [[System Selection Menu]] display screen, select the {Engine Control System}.
3. Click the [OK] button after the information of engine type has been displayed.
4. On the [[Engine Diagnosis]] display screen, select the {V.I.N. Registration}.
5. Perform the procedures shown on the display screen.
NOTE: For detailed operation procedure, refer to the "PC application help for Subaru Select Monitor".
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
