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.
2023 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE
Inspection Mode F
| DTC | Item | Condition |
|---|---|---|
| P0708 | TRANSMISSION RANGE SENSOR "A" CIRCUIT HIGH | - |
| P2758 | TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID CONTROL CIRCUIT STUCK ON | - |
Diagnostic procedure:
- Check the readiness code using Subaru Select Monitor and confirm that the diagnosis is not completed.
- Start the engine.
- Depress the brake pedal and move the select lever to each range at an interval of 5 seconds.NOTE: Move the select lever in the following order: "P" → "R" → "N" → "D".
- Drive for three seconds at 16 km/h (10 MPH).NOTE: Drive in "D" range and "R" range.
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:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.