Check Front Door Key Cylinder Switch (Unlock)

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 FRONT DOOR KEY CYLINDER SWITCH INPUT SIGNAL (UNLOCK SIGNAL)

With CONSULT-III

Check front door key cylinder switch driver side ("KEY CYL UN-SW") in "DATA MONITOR" mode with CONSULT-III.

When key cylinder switch is turned to "UNLOCK".
KEY CYL UN-SW : ON

Without CONSULT-III

Check voltage between main power window switch (door lock and unlock switch) connector and ground.

Fig 1: Identifying Voltage Between Main Power Window Switch (Door Lock And Unlock Switch) Connector And Ground

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

MAIN POWER WINDOW SWITCH (DOOR LOCK AND UNLOCK SWITCH) CONNECTOR AND GROUND

Connector	Terminal (Wire color)		Front door key cylinder switch position	Voltage (V) (Approx.)
Connector	(+)	(-)	Front door key cylinder switch position	Voltage (V) (Approx.)
D6	6 (OR)	Ground	Neutral / Lock	5
D6	6 (OR)	Ground	Unlock	0

OK or NG

OK: Front door key cylinder switch circuit driver side (unlock) is OK.

NG: GO TO 2.

CHECK FRONT DOOR KEY CYLINDER SWITCH

Disconnect front door key cylinder switch driver side connector.

Check continuity between front door key cylinder switch driver side terminals 5 and 6.

Fig 2: Identifying Continuity Between Front Door Key Cylinder Switch Driver Side Terminals 5 And 6

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

FRONT DOOR KEY CYLINDER SWITCH DRIVER SIDE TERMINALS 5 AND 6

Terminal		Front door key cylinder switch position	Continuity
5	6	Neutral / Lock	No
5	6	Unlock	Yes

OK or NG

OK: Check the following.

Front door key cylinder switch driver side ground circuit
Harness for open or short between power window main switch (door lock and unlock switch) and front door key cylinder switch driver side

NG: Replace front door key cylinder switch driver side.