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Power Transistor

Power transistor is located in distributor. Turn ignition off. Disconnect distributor 2-pin and 6-pin harness connectors. Measure resistance between distributor 2-pin connector terminal No. 8 and distributor 6-pin connector terminal No. 2 (component side). See Fig 1. If resistance is zero ohms, replace distributor assembly. If resistance is not zero ohms, power transistor is okay.

Fig 1: Testing Power Transistor (Altima Is Shown; Others Are Similar)
G00051930Courtesy of NISSAN MOTOR CO., U.S.A.