Idle Speed Control (ISC) Motor Operation Test: 1.6L

Remove throttle body from intake plenum. Remove ISC motor from throttle body. Apply 6-volt source parallel to terminals No. 2 and 5 of ISC motor connector. See Fig 1 .
Apply source ground lead to ISC motor connector terminals No. 3 and 6. Note slight movement of ISC motor plunger. Remove ground leads from terminals No. 3 and 6.
Apply and remove source ground at terminals No. 1 and 6, 1 and 4, 3 and 4, and 3 and 6. Note slight movement of ISC motor plunger during each phase of test.
Beginning at terminal No. 6, reverse grounding sequence specified in steps 2) and 3). If motor does not operate when grounding any of specified terminals, replace ISC motor.

Fig 1: ISC Motor Connector Terminal ID (1.6L)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.