Review Of 2012 Toyota Prius Check Engine Light On 2023. Check engine light is a signal from the car’s engine computer that something is wrong with your car. If it is not the 12v.
Most commonly, suspect the gas cap, especially if recently refueled. If no luck, buy a volt meter and measure the voltage at the jump point. If you have a flashing check engine light, turn off the engine immediately to prevent potential motor damage.
