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Home › Mitsubishi › 1995 › Eclipse GSX, Automatic › Repair and Diagnosis › External Pages › Different car › Section 124 (Engine Controls - Basic Testing - 2.4L 4-CYL) › Ignition Checks › DISTRIBUTORLESS Ignition System (Dis) › Power Transistor

Power Transistor

WARNING: This page is about a different car, the 1996 Mitsubishi Pickup, 1996 Mitsubishi Galant, 1996 Mitsubishi Eclipse, and 1996 Eagle Summit Wagon. However, it is still accessible from the selected car via links, so may be relevant.
  1. To test the section of the power transistor that controls cylinders No. 1 and 4, disconnect power transistor connector. Using a 1.5-volt dry cell battery, connect negative end of battery to terminal No. 3 of power transistor and positive end to terminal No. 7. See Fig 1 .
    Fig 1: Power Transistor Connector Terminal ID (Eclipse 2.4L)
    G96C09822Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
  2. Using an analog ohmmeter, check for continuity between terminals No. 3 and 8 of power transistor. Continuity should exist. With positive end of 1.5-volt battery disconnected, there should be no continuity. Replace power transistor if it fails test.
  3. To test the section of the power transistor that controls cylinders No. 2 and 3, connect negative end of 1.5-volt dry cell battery to terminal No. 3 of power transistor and positive end to terminal No. 2.
  4. Using an analog ohmmeter, check for continuity between terminals No. 1 and 3 of power transistor. Continuity should exist. With positive end of 1.5-volt battery disconnected, there should be no continuity. Replace power transistor if it fails test.
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