Sonata V6-3.0L (1991)
Idle Speed/Throttle Actuator - Electronic: Testing and Inspection
Idle Speed Control (ISC) System
Idle Speed Control Servo (Stepper Motor)
To test the Idle Speed Control (ISC) Servo (also called a Stepper Motor), located on the throttle body, proceed as follows.
ISC Motor Connector Location
1.
Disconnect the ISC connector.