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Key Switch Circuit Inspection (Without Intelligent Key)

CHECK KEY SWITCH

With CONSULT-II

Touch "BCM". With "IGN KEY SW" on the DATA MONITOR, Check ON/OFF operation.

CHECKING MIRROR SENSOR With CONSULT-II

Monitor item [OPERATION or UNIT]

Contents

IGN KEY SW⁽¹⁾

"ON/OFF"

Key inserted (ON)/key removed (OFF) status judged from the key-in detection switch is displayed.

⁽¹⁾	Refer to DATA MONITOR .

Fig 1: CONSULT-II Display - IGN KEY SW" On DATA MONITOR

G03107685

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

Without CONSULT-II

GO TO 2.

OK or NG

OK: Key switch circuit is OK.
NG: GO TO 2.

CHECK KEY SWITCH AND KEY LOCK SOLENOID POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key switch connector.
3. Check voltage between key switch connector M23 terminal 2 (L/R) and ground.
  2 (L/R) - Ground: Battery voltage.
OK or NG
1. OK: GO TO 3.
2. NG: Check harness between key switch and fuse.
  
  Fig 2: Checking Key Switch And Key Lock Solenoid Power Supply Circuit
  Courtesy of NISSAN MOTOR CO., U.S.A.

CHECK KEY SWITCH

Check continuity between key switch as follows.

TERMINAL CONTINUITY

Connector	Terminals	Condition	Continuity
M23	1 - 2	Key is inserted in ignition key cylinder.	Yes
M23	1 - 2	Key is removed from ignition key cylinder.	No

Fig 3: Checking Continuity Between Key Switch

G03107687

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

OK or NG

OK: GO TO 4.
NG: Replace key switch.

CHECK HARNESS CONTINUITY
1. Disconnect key switch and connector and BCM connector.
2. Check continuity between key switch connector M23 terminal 1 (B/W) and BCM connector M3 terminal 37 (B/W).
  1 (B/W) - 37 (B/W): Continuity should exist.
3. Check continuity between key switch connector M23 terminal 1 (B/W) and ground.
  1 (B/W) - Ground: Continuity should not exist.
  
  Fig 4: Checking Harness Continuity
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Key switch and circuit is OK.
2. NG: Repair or replace harness between key switch and BCM.