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Colt Vista

  1. Disconnect MPS connector. See Fig 1 . Connect ohmmeter lead to ground. Connect other ohmmeter lead to terminal No. 3 of sensor connector. If continuity is not present, repair wiring harness as necessary. If continuity is present, go to next step.
  2. Connect ohmmeter leads to terminals No. 1 and 3. See Fig 1 . Resistance for all models should be 4000-6000 ohms. If resistance is not within specified range, replace MPS.
    Fig 1: Motor Position Sensor Connector Terminal ID (Colt Vista)
    G91J11840Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    CAUTION: DO NOT  apply more than 6 volts to ISC motor.
  3. Operate ISC motor by connecting a 6-volt source directly to appropriate terminals of ISC motor connector. For ISC motor operation test procedures, see IDLE SPEED CONTROL (ISC) MOTOR OPERATION TEST  under IDLE CONTROL SYSTEM.
  4. While operating ISC motor, measure resistance between MPS connector terminals No. 1 and 2. Observe ohmmeter during ISC motor operation. If MPS resistance does not vary within a 4000-6000 ohm range or if resistance does not change smoothly, replace MPS (vehicles equipped with separate MPS) or ISC motor assembly (vehicles equipped with MPS incorporated in ISC).