Key Switch Insert Signal Inspection

With CONSULT-II

• Check key switch "IGN KEY SW" in "DATA MONITOR" mode with CONSULT-II.

  "IGN KEY SW" 

  When key is inserted to ignition key cylinder : ON 

  When key is removed to ignition key cylinder : OFF 

  Fig 1: CONSULT-II Display - Data Monitor

  Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

1. Disconnect BCM connector.
2. Check voltage between BCM harness connector M4 terminal 69 and ground.

   69 - Ground 

   When key is inserted to ignition key cylinder : Approx. 12 V 

   When key is removed to ignition key cylinder : Approx. 0 V 

OK or NG

1. OK : Key switch insert signal is OK. Return to "SYMPTOM CHART ".
2. NG : GO TO 2.
   Fig 2: Identifying Voltage Between BCM Harness Connector M4 Terminal 69 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

1. Remove key from the ignition key cylinder.
2. Disconnect key switch and key lock solenoid (key switch) connector.
3. Check continuity between BCM harness connector M4 terminal 69 and key switch and key lock solenoid (key switch) harness connector M64 terminal 4.

   69 - 4 : Continuity should exist. 

OK or NG

1. OK : GO TO 3.
2. NG : Repair harness or connector.
   Fig 3: Identifying Continuity Between BCM Harness Connector M4 Terminal 69 And Key Switch And Key Lock Solenoid

   Courtesy of NISSAN MOTOR CO., U.S.A.

Check continuity between key switch and key lock solenoid (key switch) connector M64 terminals 3 and 4.

3 - 4 

When key is inserted to ignition key cylinder : Continuity should exist. 

When key is removed to ignition key cylinder : Continuity should not exist. 

OK or NG

1. OK : Check harness between fuse and key switch.
2. NG : Replace key switch and key lock solenoid (key switch).
   Fig 4: Identifying Continuity Between Key Switch And Key Lock Solenoid Connector M64 Terminals 3 And 4

   Courtesy of NISSAN MOTOR CO., U.S.A.