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ISC Servo Motor

  1. Check resistance between terminals No. 1 and 4 of ISC servo motor. See Fig 1 . Standard resistance at 68°F (20°C) is approximately 5-35 ohms for Cordia and Tredia, and 5-11 ohms for all other models. Ensure no continuity is present between terminals No. 1 and 4, and servo motor body.
  2. On all models except Cordia and Tredia, use 4 flashlight batteries (6 volts) and apply negative and positive voltage between terminals No. 1 and 4. See Fig 2 . Ensure ISC servo extends and retracts as necessary.
Fig 1: Idle Switch/ISC Servo Motor Connector Identification
G93451Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 2: ISC Servo Operational Check
G93452Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 3: Throttle Position Sensor (TPS) Connector Identification
G93453Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.