1992 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Power Transistor

  1. Disconnect power transistor connector. See Fig 1 . At power transistor connector, check continuity between the following terminals, noting ohmmeter test lead polarity:
    • "a" (+) and "b" (-)
    • "a" (+) and "c" (-)
  2. If there is continuity, replace power transistor. If there is no continuity, reverse ohmmeter test lead polarity and check continuity across terminals listed in previous step. If there is no continuity, replace power transistor. If there is continuity, power transistor is okay.
Fig 1: Checking Power Transistor Circuit
G93I80901Courtesy of NISSAN MOTOR CO., U.S.A.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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