LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2004 >> Altima Base, Standard >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Remote Keyless Entry System >> Remote Keyless Entry System >> Key Switch (insert) Check
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Key Switch (insert) Check

  1. CHECK KEY SWITCH INPUT SIGNAL 

    Check voltage between BCM harness connector M18 terminal 62 (B/R) and ground.

    VOLTAGE BCM HARNESS CONNECTOR CHART

    Condition of key switch Voltage [V]
    Key is inserted.  : Approx. 12 
    Key is removed.  :0 
    Fig 1: BCM Harness Connector M18 Terminal & Ground Continuity Test
    G02888081Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG?

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

    Check continuity between key switch connector M26 terminals 3 and 4.

    CONTINUITY SWITCH CHART

    Condition of key switch Continuity
    Key is inserted.  Yes 
    Key is removed.  No 
    Fig 2: Key Switch Connector M26 Terminals 3 & 4 Continuity Test
    G02888082Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG?

    1. OK: Check the following.
      • 10A fuse [No. 19, located in fuse block (J/B)]
      • Harness for open or short between key switch and fuse
      • Harness for open or short between BCM and key switch
    2. NG: Replace key switch.
scientia non olet · About LEMON Manuals