General Information

P0507 Idle Air Control System

RPM higher than expected - General Information

Component Location





General Description

The ISCA (Idle Speed Control Actuator) is designed to maintain a steady desired idle speed. Idle airflow is adjusted through the idle air actuator in order to maintain the desired idle speed under various load conditions. Load conditions vary due to numerous factors, such as engine temperature, air conditioning, electrical load and power steering load.

DTC Description

If actual engine speed is more than 200 RPM higher than desired engine speed, P0507 is set.

DTC Detecting Condition





Specification





Schematic Diagram





Signal Waveform