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.
2020 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
Inspection Mode A
| DTC | Description & trouble part | Condition |
|---|---|---|
| P0604 | INTERNAL CONTROL MODULE RANDOM ACCESS MEMORY (RAM) ERROR | - |
| P0605 | INTERNAL CONTROL MODULE READ ONLY MEMORY (ROM) ERROR | - |
| P0613 | TCM PROCESSOR | - |
| P062F | INTERNAL CONTROL MODULE EEPROM ERROR | Perform inspection mode A twice |
| P0705 | TRANSMISSION RANGE SENSOR "A" CIRCUIT (PRNDL INPUT) | - |
| P0712 | TRANSMISSION FLUID TEMPERATURE SENSOR "A" CIRCUIT LOW | - |
| P0842 | TRANSMISSION FLUID PRESSURE SENSOR/SWITCH "A" CIRCUIT LOW | - |
| P0843 | TRANSMISSION FLUID PRESSURE SENSOR/SWITCH "A" CIRCUIT HIGH | - |
| P0847 | TRANSMISSION FLUID PRESSURE SENSOR/SWITCH "B" CIRCUIT LOW | - |
| P0848 | TRANSMISSION FLUID PRESSURE SENSOR/SWITCH "B" CIRCUIT HIGH | - |
| P0890 | TCM POWER RELAY SENSE CIRCUIT LOW | - |
| P0962 | PRESSURE CONTROL SOLENOID "A" CONTROL CIRCUIT LOW | - |
| P0963 | PRESSURE CONTROL SOLENOID "A" CONTROL CIRCUIT HIGH | - |
| P0966 | PRESSURE CONTROL SOLENOID "B" CONTROL CIRCUIT LOW | - |
| P0967 | PRESSURE CONTROL SOLENOID "B" CONTROL CIRCUIT HIGH | - |
| P2530 | IGNITION SWITCH RUN POSITION CIRCUIT | - |
| P2721 | PRESSURE CONTROL SOLENOID "D" CONTROL CIRCUIT HIGH | - |
| P2729 | PRESSURE CONTROL SOLENOID "E" CONTROL CIRCUIT LOW | - |
| P2730 | PRESSURE CONTROL SOLENOID "E" CONTROL CIRCUIT HIGH | - |
Diagnostic procedure:
- Start the engine.
- Check the readiness code of [Transmission] using Subaru Select Monitor and confirm that the diagnosis is not completed. Refer to TRANSMISSION (DIAGNOSTICS)>All Readiness Diagnostic Code(s) .
- Depress the brake pedal and move the select lever to each range at an interval of five seconds.NOTE: Move the select lever in the following order: "P" → "R" → "N" → "D" → "N" → "R" → "P".
- Check the readiness code of [Transmission] using Subaru Select Monitor and confirm that the diagnosis is completed. Refer to TRANSMISSION (DIAGNOSTICS)>All Readiness Diagnostic Code(s) .
Factory Service Tools
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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.
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