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Bench Testing: Diodes

Using an ohmmeter, check continuity of all diodes in both directions. Continuity should exist in only one direction. If continuity exists in both directions, diode is shorted. See Fig 1. If continuity is NOT present in either direction, diode is open. If any diode is defective, replace entire diode assembly.

Fig 1: Testing Diode Assembly
G90C09389Courtesy of NISSAN MOTOR CO., U.S.A.
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