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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1434 (Body, Lock & Security System) >> Intelligent Key System >> Check Ignition Knob Switch
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Check Ignition Knob Switch

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK IGNITION KNOB SWITCH 

    With CONSULT-II 

    Display "PUSH SW" on "DATA MONITOR" screen, and check if ON/OFF display is linked to ignition knob operation.

    1. Press ignition knob. : ON 
    2. Return ignition knob (release hands : OFF 
    3. From ignition knob) 

    OK or NG 

    1. OK : Ignition knob switch is OK.
    2. NG : GO TO 2.
  2. CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT 
    1. Turn ignition knob LOCK position.
    2. Disconnect key switch and ignition knob switch connector.
    3. Check voltage between key switch and ignition knob switch connector M22 terminal 1 (L/R) and ground.
      1. 1 (L/R) - Ground : Battery voltage 

    OK or NG 

    1. OK : GO TO 3.
    2. NG : Repair or replace key switch and ignition knob switch power supply circuit.
    Fig 1: Displaying "PUSH SW" On "DATA MONITOR" Screen
    G02362309Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK IGNITION KNOB SWITCH OPERATION 

    Check continuity between key switch and ignition knob switch terminals 1 and 2.

    Fig 2: Checking Voltage Between Key Switch And Ignition Knob Switch Connector M22 Terminal 1 (L/R) And Ground
    G02362310Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 3: Connector Terminal Reference Chart
    G02362311Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 4.
    2. NG : Replace key switch and ignition knob switch.
    Fig 4: Checking Continuity Between Key Switch And Ignition Knob Switch Terminals 1 And 2
    G02362312Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK IGNITION KNOB SWITCH CIRCUIT 
    1. Disconnect Intelligent Key unit connector.
    2. Check continuity between Intelligent Key unit connector M34 terminal 27 (L/W) and key switch and ignition knob switch connector M22 terminal 2 (L/W).
      1. 27 (L/W) - 2 (L/W) : Continuity should exist. 
    3. Check continuity between key switch and ignition knob switch connector terminal 2 (L/W) and ground.
      1. 2 (L/W) - Ground : Continuity should not exist. 

    OK or NG 

    1. OK : Replace Intelligent Key unit.
    2. NG : Repair or replace harness between Intelligent Key unit and key switch and ignition knob switch.
    Fig 5: Checking Ignition Knob Switch Circuit
    G02362313Courtesy of NISSAN MOTOR CO., U.S.A.