Diagnostic Procedure 3

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER SWITCH)

With CONSULT-II

Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in DATA MONITOR mode with CONSULT-II. Refer to "DATA MONITOR ".

When key inserted in left front door key cylinder is turned to LOCK:
KEY CYL LK-SW: ON
When key inserted in left front key cylinder is turned to UNLOCK:
KEY CYL UN-SW: ON

Fig 1: CONSULT II Display - Data Monitor
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Check voltage between main power window and door lock/unlock switch connector D7 terminals 6, 7 (without power vent windows) or terminals 4, 6 (with power vent windows) and ground.

Without Power Vent Windows

TERMINALS VOLTAGE REFERENCE

Connector	Terminals		Condition of left front key cylinder	Voltage (V) (Approx.)
Connector	( + )	( - )	Condition of left front key cylinder	Voltage (V) (Approx.)
D7	6	Ground	Neutral/Unlock	5
	6		Lock	0
	7		Neutral/Lock	5
	7		Unlock	0

Fig 2: Identifying Voltage Between Main Power Window And Door Lock/Unlock Switch Connector Terminals 6, 7 And Ground

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

With Power Vent Windows

TERMINALS VOLTAGE REFERENCE

Connector	Terminals		Condition of left front key cylinder	Voltage (V) (Approx.)
Connector	( + )	( - )	Condition of left front key cylinder	Voltage (V) (Approx.)
D7	4	Ground	Neutral/Unlock	5
	4		Lock	0
	6		Neutral/Lock	5
	6		Unlock	0

Fig 3: Identifying Voltage Between Main Power Window And Door Lock/Unlock Switch Connector Terminals 4, 6 And Ground

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

OK or NG

OK: Key cylinder switch signal is OK.

NG: GO TO 2.

CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS

Check continuity between front door lock assembly LH (key cylinder switch) connector D14 terminal 5 and body ground.

TERMINALS CONTINUITY REFERENCE

Connector	Terminals	Continuity
D14	5 - Ground	Yes

Fig 4: Identifying Continuity Between Front Door Lock Assembly LH Connector Terminal 5 And Body Ground

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 LH

Check continuity between front door lock assembly LH (key cylinder switch) terminals.

TERMINALS CONTINUITY REFERENCE

Terminals	Condition	Continuity
1 - 5	Key is turned to UNLOCK or neutral.	No
1 - 5	Key is turned to LOCK.	Yes
5 - 6	Key is turned to LOCK or neutral.	No
5 - 6	Key is turned to UNLOCK.	Yes

Fig 5: Identifying Continuity Between Front Door Lock Assembly LH (Key Cylinder Switch) Terminals

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

OK or NG

OK: GO TO 4.

NG: Replace front door lock assembly LH (key cylinder switch). Refer to "FRONT DOOR LOCK ".

CHECK DOOR KEY CYLINDER HARNESS

Check continuity between main power window and door lock/unlock switch connector (A) D7 terminals 4, 6 and front door lock assembly LH (key cylinder switch) connector (B) D14 terminals 1, 6 and body ground.

TERMINALS CONTINUITY REFERENCE

Connector	Terminals	Connector	Terminals	Continuity
A: Main power window and door lock/unlock switch	4	B: Front door lock assembly LH (key cylinder switch)	1	Yes
	6	B: Front door lock assembly LH (key cylinder switch)	6	Yes
	4	Ground		No
	6	Ground		No

Fig 6: Identifying Continuity Between Main Power Window And Door Lock/Unlock Switch Connector Terminals And Body Ground

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

OK or NG

OK: Replace main power window and door lock/unlock switch.

NG: Repair or replace harness.