General Information

Engine Control
P0506 Idle Control system- RPM lower than expected - General Information

Component Location

General Description

When the TP sensor's signal indicates closed throttle position and the engine is idling, the PCM adjusts the idle speed control actuator so that the engine runs at the correct idling speed, regardless of coolant temperature, load and etc. When the additional load applied in the engine, the air flow through the idle speed control actuator is increased momentarily to raise the idling speed.

DTC Detecting Condition

Specification

Schematic Diagram

Signal Waveform