General Information

P0506 Idle Air Control System-RPM Lower 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 over the 100 rpm lower than desired engine speed, P0506 is set.

DTC Detecting Condition





Specification





Diagnostic Circuit Diagram





Signal Waveform & Data