Key Switch (Insert) Check

With CONSULT-II

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

• When key is inserted to ignition key cylinder:

  KEY ON SW : ON 

• When key is removed from ignition key cylinder:

  KEY ON SW : OFF 

  Fig 1: CONSULT-II Display - KEY ON SW

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

Without CONSULT-II

Check voltage between BCM connector M18 terminal 37 and ground.

Fig 2: BCM Connector M18 Terminals Specification

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

Fig 3: Checking Voltage Between BCM Connector M18 Terminal 37 And Ground

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

OK or NG 

• OK : System is OK.
• NG : GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid connector.
3. Check continuity between key switch and key lock solenoid connector terminals 3 and 4.
   Fig 4: Key Switch And Key Lock Solenoid Connector Terminals Continuity

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 5: Checking Continuity Between Key Switch And Key Lock Solenoid Connector Terminals

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

OK or NG 

• OK : GO TO 3.
• NG : Replace key switch and key lock solenoid.

1. Disconnect BCM connector.
2. Check continuity between the BCM harness connector M18 terminal 37 and key switch and key lock solenoid harness connector M26 terminal 4.
3. Check continuity between BCM harness connector M18 terminal 37 and ground.

   37 (B/R) - 4 (B/R) : Continuity should exist 

   37 (B/R) - Ground : Continuity should not exist 

   Fig 6: Checking Key Switch And Key Lock Solenoid Circuit

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

OK or NG 

• OK : Check the following.
  • 10A fuse [No. 21, located in fuse block (J/B)]
  • Harness for open or short between key switch and key lock solenoid and fuse
• NG : Repair or replace harness.