Civic L4-1.3L Hybrid (2008)
Idle Speed: Description and Operation
Idle Control System
When the engine is cold, the A/C compressor is on, the transmission is in gear, the brake pedal is pressed, the power steering load is high, or the
alternator is charging, the PCM sends signals to the throttle position to maintain the correct idle speed.
Brake Pedal Position Switch
The brake pedal position switch signals the PCM when the brake pedal is pressed.
Electrical Power Steering (EPS) Signal
The EPS signals the PCM when the power steering load is high.
