Key Switch (Insert) Check

Check Key Switch Input Signal
With CONSULT-II

Check key switch (KEY ON SW ) in DATA MONITOR mode with CONSULT-II.

Fig 1: Checking Key Switch Input Signal With CONSULT-II Display
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Check voltage between smart entrance control unit harness connector E144 terminals 25 (B/R) and ground.

Fig 2: Checking Voltage Smart Entrance Terminals & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

Refer to wiring diagram in WIRING DIAGRAM - KEYLES - .
1. OK or NG
  OK: Key switch is OK.
  
  NG: GO TO 2 .
Check Key Switch (Insert)
Check continuity between key switch harness connector E154 terminals 3 and 4.

Fig 3: Checking Continuity Between Terminals 3 & 4
Courtesy of NISSAN MOTOR CO., U.S.A.
1. OK or NG
OK: Check the following.
- 10A fuse [No. 13, located in fuse block (J/B)]
- Harness for open or short between key switch and fuse
- Harness for open or short between smart entrance control unit and key switch
NG: Replace key switch.