Power Transistor (Eclipse 2.0L)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1990 Mitsubishi Van, 1990 Mitsubishi Sigma, 1990 Mitsubishi Precis, 1990 Mitsubishi Pickup, and 1990 Mitsubishi Montero. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect power transistor connector. Using an analog ohmmeter, connect positive ohmmeter lead to terminal No. 3 and negative lead to terminal No. 1. See Fig 1 -Fig 2 . Ensure there is no continuity.
Using a 1.5-volt dry cell battery, connect positive end of 1.5-volt battery to power transistor terminal No. 2 and negative end to terminal No. 3. Ohmmeter should now read continuity between power transistor terminals No. 3 and No. 1.
Connect positive end of 1.5-volt battery to power transistor terminal No. 5 and negative end to terminal No. 3. Connect positive ohmmeter lead to terminal No. 3 and negative lead to terminal No. 6. Ohmmeter should read continuity. Replace power transistor if it does not test as described.

Fig 1: All Models Except Eclipse 2.0L Power Transistor Connector Identification (DIS Models)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

Fig 2: Eclipse 2.0L Power Transistor Connector Identification (DIS Models)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.