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Power Transistor

WARNING: This page is about a different car, the 1996 Hyundai Sonata. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect connector from power transistor. To check power transistor for cylinders No. 1 and 4, apply 1.5 volts between power transistor terminals No. 3 (negative) and No. 4 (positive). See Fig 1 .
  2. Using analog ohmmeter, check continuity between terminals No. 3 (positive) and No. 5 (negative). With voltage applied to terminal No. 4, continuity should exist. With voltage removed from terminal No. 4, continuity should not exist.
  3. To check power transistor for cylinders No. 2 and 3, apply 1.5 volts between power transistor terminals No. 2 (positive) and No. 3 (negative). Using analog ohmmeter, check for continuity between terminals No. 1 (negative) and No. 3 (positive). With voltage applied to terminal No. 2, continuity should exist. With voltage removed from terminal No. 2, continuity should not exist.
Fig 1: Checking Power Transistor (Sonata 2.0L)
G92E24921Courtesy of HYUNDAI MOTOR CO.
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