Toyota Corolla (E120): Idle signal circuit

Dtc 51 idle signal circuit

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Manual transmission/transaxle
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Location
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Circuit description
The rotary solenoid type idle air control (iac) valve is located under the throttle body and intake air bypassing the throttle valve flows into the iac valve through the passage. In this way the intake air volume bypassing the throttle valve is regulated, controls the engine speed. The ...