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Home >> Infiniti >> 1994 >> G20 Automatic, 1RL4F03V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing >> Ignition Checks >> Optical Ignition System Checks >> Ground Circuit
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Ground Circuit

  1. Turn ignition off. Disconnect power transistor and ignition coil harness connectors. Check continuity between ignition coil terminal "b" to power transistor terminal "e" (Green/Yellow wire). See Fig 1 .
  2. Connect ohmmeter leads between power transistor terminal "d" and ground. See Fig 1 . If continuity does not exist at all these terminals, check and repair wiring harness or connectors.
Fig 1: Checking Ground Circuit
G93G78465Courtesy of NISSAN MOTOR CO., U.S.A.
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