Key Switch and Ignition Knob Switch Circuit Inspection (With Intelligent Key)

CHECK KEY SWITCH AND IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT

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 CONSULT-II APPLICATION ITEMS .

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

G03107681

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

Without CONSULT-II

GO TO 2.

OK or NG

OK: Key switch and ignition knob switch circuit is OK.
NG: GO TO 2.

CHECK KEY SWITCH AND IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key switch connector and ignition knob switch connector.
3. Check voltage between key switch and ignition knob switch connector M22 terminal 3 (L/R) and ground.
  3 (L/R) - Ground: Battery voltage.
OK or NG
1. OK: GO TO 3.
2. NG: Check harness between key switch and key lock solenoid and fuse block (J/B).
  
  Fig 2: Checking Key Switch And Ignition Knob Switch 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
M22	3 - 4	Key is inserted in ignition key cylinder.	Yes
M22	3 - 4	Key is removed from ignition key cylinder	No

Fig 3: Checking Continuity Between Key Switch

G03107683

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

OK or NG

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

CHECK HARNESS CONTINUITY
1. Disconnect key switch and ignition knob switch connector and BCM connector.
2. Check continuity between key switch and ignition knob switch connector M22 terminal 4 (B/W) and BCM connector M3 terminal 37 (B/W).
  4 (B/W) - 37 (B/W): Continuity should exist.
3. Check continuity between key switch and ignition knob switch connector M22 terminal 4 (B/W) and ground.
  4 (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 ignition knob switch circuit is OK.
2. NG: Repair or replace harness between key switch and ignition knob switch and BCM.