Check Front Door Key Cylinder Switch

WARNING: This page is about a different car, the 2008 Infiniti FX45 and 2008 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

With CONSULT-III

Check ("KEY CYL LK-SW", "KEY CYL UN-SW") in "DATA MONITOR" mode for "POWER DOOR ROCK SYSTEM" with CONSULT-III. Refer to "DATA MONITOR "

Fig 1: Identifying CONSULT-III Display - DATA MONITOR

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

DOOR KEY CYLINDER SWITCH INPUT SIGNAL (WITH CONSULT-III)

Monitor item	Condition
KEY CYL LK-SW	Lock	: ON
KEY CYL LK-SW	Neutral/Unlock	: OFF
KEY CYL UN-SW	Unlock	: ON
KEY CYL UN-SW	Neutral/Lock	: OFF

Without CONSULT-III

Turn ignition switch OFF.
Check voltage between power window main switch connector and ground.

Fig 2: Identifying Voltage Between Power Window Main Switch Connector And Ground

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

DOOR KEY CYLINDER SWITCH INPUT SIGNAL (WITHOUT CONSULT-III)

Connector	Terminals (Wire color)		Key position	Voltage [V] (Approx.)
Connector	(+)	(-)	Key position	Voltage [V] (Approx.)
D6	4 (P)	Ground	Lock	0
	4 (P)		Neutral/Unlock	5
	6 (OR)		Unlock	0
	6 (OR)		Neutral/Lock	5

OK or NG

OK: Further inspection is necessary. Refer to SYMPTOM CHART .

NG: GO TO 2.

CHECK HARNESS CONTINUITY
1. Disconnect power window main switch and front door key lock assembly (driver side) connector.
2. Check continuity between power window main switch connector D6 terminals 4, 6 and front door lock assembly (driver side) connector D10 terminals 1, 6.
  4 (P) - 1 (P) : Continuity should exist.
  
  6 (OR) - 6 (OR) : Continuity should exist.
  
  Fig 3: Identifying Continuity Between Power Window Main Switch D6 Terminals 4, 6 And Front Door Lock Assembly D10 Terminals 1, 6
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 3.

NG: Repair or replace harness.
CHECK DOOR KEY CYLINDER SWITCH GROUND
Check continuity between front door lock assembly (driver side) connector D10 terminal 5 and ground.

5 (B) - Ground : Continuity should exist.

OK or NG

Fig 4: Identifying Continuity Between Key Cylinder Switch (Driver Side) Connector D10 Terminal 5 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK: GO TO 4.

NG: Repair or replace harness.

CHECK DOOR KEY CYLINDER SWITCH

Check continuity between door lock assembly terminals 1, 6 and 5.

Fig 5: Identifying Continuity Between Door Lock Assembly Terminals 1, 6 And 5

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

DOOR KEY CYLINDER SWITCH

Terminals		Key position	Continuity
1	5	Lock	Yes
1		Neutral/Unlock	No
6		Unlock	Yes
6		Neutral/Lock	No

OK or NG

OK: Further inspection is necessary. Refer to SYMPTOM CHART .

NG: Replace front door key cylinder (driver side) switch.