The idle speed actuator is a double coil type driven by separate driver stages in the ECM. Depending on the pulse duty factor, the equilibrium of the magnetic forces of the two coils will result in different angles of the motor. A bypass hose line is positioned, in parallel to the throttle valve where the idle speed actuator is inserted.
Open or short circuit is observed in idle air control system when ignition switch is turned on.
Check item | Check condition | Engine condition | Test specification |
Idle speed control actuator ● Actuator test | Start the engine | ISCV | Activate |
Disconnect the connector at the idle speed control actuator.
Measure the resistance between terminals.
Standard value
Terminal 1 and 2 : 10.5 ~ 14Ω
Terminal 2 and 3 : 10 ~ 12.5Ω [at 20°C (68°F)]
Connect the connector to the idle speed control actuator.
