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Power Transistor Relay

  1. Connect a 12-volt power source and ground to terminals No. 1 and 2 of relay. See Fig 1 . Using ohmmeter, check continuity between terminals No. 3 and 5. Continuity should exist while relay is energized.
  2. Disconnect power source and recheck continuity across terminals No. 3 and 5. No continuity should exist. Check harness and connectors. If harness and connectors are okay, replace power transistor relay.
Fig 1: Checking Power Transistor Relay Continuity (Q45)
G62496Courtesy of NISSAN MOTOR CO., U.S.A.
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