FixVault
Home › Nissan-Datsun › 2004 › Quest SL › Repair and Diagnosis › External Pages › Different car › Section 488 (Remote Keyless Entry System) › Remote Keyless Entry System › Key Switch (insert) Check

Key Switch (insert) Check

WARNING: This page is about a different car, the 2004 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
  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.
About FixVault