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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> Electrical >> Starter >> Starters >> System Tests >> Diagnostic Procedure 2, Check "S" Terminal Circuit

Diagnostic Procedure 2, Check "S" Terminal Circuit

  1. Remove the fuel pump fuse. See COMPONENT LOCATIONS . Crank or start the engine (if possible) until the fuel pressure is released.
  2. Turn the ignition switch OFF.
  3. Disconnect starter motor connector F53 (QG18DE), F32 (QR25DE) terminal "S" (Black/Yellow wire) connector. See WIRING DIAGRAMS . Check voltage between starter motor connector F53 (QG18DE), F32 (QR25DE) terminal "S" (Black/Yellow wire) and ground using a digital circuit tester. With ignition switch "ON", battery voltage should exist. If voltage is as specified, go to next step. If voltage is as not specified, check:
    • 40-amp fusible link (letter "C", located in fuse and fusible link box).
    • Clutch interlock relay.
    • Park/neutral position relay.
    • Harness for open or short.
  4. Connect starter motor connector F53 (QG18DE), F32 (QR25DE) terminal "S" (Black/Yellow wire) connector. Check voltage between starter motor connector F53 (QG18DE), F32 (QR25DE) terminal "S" (Black/Yellow wire) and battery positive terminal using a digital tester. With ignition switch in "START" position, voltage should be less than 0.2 volt. Starter motor "S" terminal circuit is okay. Further inspection is necessary. Refer to WORK FLOW . If voltage is as not specified, check harness between the battery and the starter motor "S" terminal for poor continuity.
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