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Home >> Nissan-Datsun >> 2004 >> Frontier Base, Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Power Door Lock System & Vehicle Security System >> Remote Keyless Entry System >> Trouble Diagnoses >> Power Supply And Ground Circuit Check >> 1. Check Main Power Supply Circuit For Control Unit
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1. Check Main Power Supply Circuit For Control Unit

  1. Disconnect smart entrance control unit harness connector.
  2. Check voltage between smart entrance control unit harness connector M112 terminals 49 (R/Y), 51 (W/R) and ground.
    Fig 1: Checking Main Power Supply Circuit for Control Unit
    G00848390Courtesy of NISSAN MOTOR CO., U.S.A.

    Refer to WIRING DIAGRAM - KEYLESS  .

OK or NG 

  1. OK: GO TO 2  .
  2. NG: Check the following.
    • 30A fusible link (with KA24DE), 40A fusible link (with VG33E and VG33ER) (letter f  , located in fuse and fusible link box)
    • 7.5A fuse [No. 28, located in fuse block (J/B)]
    • M12 circuit breaker
    • Harness for open or short between smart entrance control unit and circuit breaker
    • Harness for open or short between smart entrance control unit and fuse.
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