The Hyundai Getz idle crankshaft speed control modulator is made with two coils, which are controlled by separate master stages of the engine control unit. Depending on the pulse applied to them, the balance of the forces of the magnetic field of the two coils leads to different angles of rotation of the modulator. The modulator is installed in the air duct that bypasses the throttle valve. By passing additional air, the modulator regulates the idle speed of the engine crankshaft.
Examination
1. Disconnect the connector from the idle speed control modulator.
2. Measure the resistance between the connector terminals.
Resistance between terminals 1 and 2: 10.5-14.0 ohms
Resistance between terminals 2 and 3: 10-12.5 ohms at 20°C
3. Connect the connector to the idle speed control modulator.