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If a 2007 Prius displays Code P1121, what issue is it indicating?
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In a 2007 Toyota Prius, if you come across diagnostic fault code P1121, it means that the electric throttle control actuator has malfunctioned. When this code appears, you'll notice the check engine light is on and there's a high chance that the accelerator pedal won't respond. This is definitely not a situation you want to deal with. The throttle control actuator comprises the throttle control motor, throttle position sensor, and other components. It is managed by the ECM (engine control module) and controls the opening and closing of the throttle valve. To pinpoint the issue accurately, you'll need a digital multimeter. While you have the option to replace the entire system, you might save some money by identifying the specific faulty part.
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If your 2007 Toyota Prius shows a p1121 code, it might indicate a potential issue with the sensor of the coolant flow control valve being stuck.
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