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.
Inspection Mode 16
| Code | Note | Number of driving cycles on the detecting condition |
|---|---|---|
| P33B9-9F | - | 1 |
Diagnostic procedure:
- Using the Subaru Select Monitor, perform the clear memory of [P-HEV Hybrid Powertrain Control]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
- Turn to IG OFF, and wait for 2 minutes or more.
- Using the Subaru Select Monitor, read the DTC of [P-HEV Hybrid Powertrain Control] to check that there is no DTC displayed Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .NOTE:
If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs. After solving the DTC, repeat from step 1 .
- Turn to READY ON, and wait for 30 seconds or more.
- Turn to IG OFF, and wait for 2 minutes or more.
- Turn to READY ON, and wait for 30 seconds or more.
- Turn to IG OFF, and wait for 2 minutes or more.
- Read the [Readiness code] of [P-HEV Hybrid Powertrain Control] using Subaru Select Monitor and check that the concerned self-diagnosis is completed. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>ALL READINESS DIAGNOSTIC CODE(S) .NOTE:
If the concerned DTC is displayed, the self-diagnosis of the DTC is not complete. repeat from step 9 .
- Using the Subaru Select Monitor, read the DTC of [P-HEV Hybrid Powertrain Control] to check that there is no DTC displayed Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .NOTE:
If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis for the displayed DTCs.
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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.