2002 Nissan-Datsun Sentra SE-R Spec VFACTORY OEM SERVICE PROCEDURE

Key Switch (Insert) Check

  1. CHECK KEY SWITCH INPUT SIGNAL 

    With CONSULT-II 

    Check key switch ("KEY ON SW") in "DATA MONITOR" mode with CONSULT-II.

    Fig 1: Checking Key Switch Key On SW In Data Monitor Mode With CONSULT-II
    G02053817Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Check voltage between control unit terminal 32 and ground.

    Fig 2: Checking Voltage Between Control Unit Terminal 32 And Ground
    G02053818Courtesy of NISSAN MOTOR CO., U.S.A.

    Refer to Figure and Figure .

    OK or NG 

    1. OK  : Key switch is OK.
    2. NG  : GO TO 2.
  2. CHECK KEY SWITCH 

    Check continuity between key switch terminals 1 and 2.

    Fig 3: Checking Continuity Between Key Switch Terminals 1 And 2
    G02053819Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK  : Check the following:
      • 10A fuse [No. 12, located in fuse block (J/B)]
      • Harness for open or short between key switch and fuse
      • Harness for open or short between smart entrance control unit and key switch
    2. NG  : Replace key switch.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.