LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mitsubishi >> 1992 >> Precis Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Engine Sensors & Switches >> Motor Position Sensor
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Motor Position Sensor

  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 4. On all other models, connect ohmmeter leads to terminals No. 2 and 3.
  3. 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
    G91F16381Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
    CAUTION: DO NOT  apply more than 6 volts to ISC motor.
  4. Operate ISC motor by connecting a 6-volt source directly to appropriate terminals of ISC motor connector. See IDLE SPEED CONTROL (ISC) MOTOR OPERATION TEST  under IDLE CONTROL SYSTEM.
  5. While operating ISC motor, measure resistance between MPS connector terminals No. 1 and 2.
  6. 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 with separate MPS) or ISC motor assembly (vehicles with MPS incorporated in ISC).
scientia non olet · About LEMON Manuals