Idle Speed Actuator
IDLE SPEED CONTROL ACTUATORDescription
The idle speed actuator is of the double coil type and has two coils. the two coils are driven by separate driver stages in the engine control module. Some cone coils receive the inverse signal of the other. Depending on the pulse duty factor the equilibrium of the magnetic forces of the two coils will result in different angles of the motor. In parallel to the throttle valve a bypass hose line is arranged, where the idle speed actuator is inserted in.
Circuit Diagram
Troubleshooting Procedures
Using Scan Tool
Harness Inspection Procedure
Actuator Inspection Procedure
1. Disconnect the connector at the idle speed control actuator.
2. Measure the resistance between terminals.
Standard value at 20° C (68° F)
between terminal 1 and 2: 13 ohms
between terminal 2 and 3: 14 ohms
3. Connect the connector to the idle speed control actuator