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 PERFORMANCEIGNITION SYSTEMSMART KEY SYSTEM (KEYLESS START) (EXCEPT PLUG-IN) (DIAGNOSTIC CODES & SYMPTOM TESTS)SMART KEY SYSTEM (FOR START FUNCTION)DTC B2286: RUNNABLE SIGNAL MALFUNCTIONDESCRIPTION

2012 Toyota Prius Three

DTC B2286: Runnable Signal Malfunction: Description

2012 Toyota Prius ThreeSECTION Description

This DTC is stored when a malfunction is detected in the READY signal circuit inside the power management control ECU.

DTC No.	DTC Detection Condition	Trouble Area
B2286	READY signal error inside the power management control ECU.	AM2 fuse Power management control ECU Wire harness or connector

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.