P1516 Toyota Idle Air Control Solenoid Signal 4 Circuit Low Input
Possible causes
– Idle Air Control Solenoid valve harness is open or shorted
– Idle Air Control Solenoid valve circuit poor electrical connection
– faulty Idle Air Control Solenoid valve
– Idle Air Control Solenoid valve circuit poor electrical connection
– faulty Idle Air Control Solenoid valve
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1516 Toyota Description
The Idle Air Control Solenoid valve is incorporated in the throttle body and regulates the amount of intake air which bypasses the throttle valve built into the throttle body. It is activated by a signal sent from the Engine Control Module (ECM) to maintain engine idle speed to the target engine speed.
Toyota Vehicle:Toyota Prius,Toyota Celica,Toyota Supra,Toyota Carina,Toyota Camry,Toyota MR2,Toyota Aygo,Toyota 4Runner,Toyota Avalon,Toyota Camry,Toyota Corolla,Toyota FJ Cruiser,Toyota Highlander,Toyota Land Cruiser,Toyota Matrix,Toyota Prius,Toyota RAV4,Toyota Sequoia,Toyota Sienna,Toyota Solara,Toyota Tacoma,Toyota Tundra,Toyota Yaris,