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.
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HOMESERVICE MANUALSTOYOTA2012PRIUS THREEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETUNE-UPSMART KEY SYSTEM (KEYLESS START) (EXCEPT PLUG-IN) (DIAGNOSTIC CODES & SYMPTOM TESTS)SMART KEY SYSTEM (FOR START FUNCTION)DTC B2275: STSW MONITOR MALFUNCTIONDESCRIPTION
2012 Toyota Prius Three
DTC B2275: STSW Monitor Malfunction: Description
2012 Toyota Prius ThreeSECTION Description
This DTC is stored when a malfunction is detected in the starter circuit inside the power management control ECU.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B2275 | Power management control ECU internal HV activation request output circuit malfunction or external circuit malfunction. |
|
RENDER: 1.0x
NO RELATED
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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.