Infiniti QX56 (JA60). Manual - part 756

PWC-36

< COMPONENT DIAGNOSIS >

DOOR KEY CYLINDER SWITCH

DOOR KEY CYLINDER SWITCH

Description

INFOID:0000000005147213

Main power window and door lock/unlock switch detects condition of the door key cylinder and transmits to

BCM as the LOCK or UNLOCK signals. 

Component Function Check

INFOID:0000000005147214

1.

 CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

Check (“KEY CYL LK-SW”, “KEY CYL UN-SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-

TEM” with CONSULT-III. Refer to 

DLK-56, "CONSULT-III Function (INTELLIGENT KEY)"

.

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

>> Refer to 

PWC-36, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005147215

Regarding Wiring Diagram information, refer to 

PWC-53, "Wiring Diagram"

.

1.

 CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL 

1. Turn ignition switch ON.

2. Check voltage between main power window and door lock/

unlock switch connector and ground.

Is the measurement value within the specification?

YES

>> Replace main power window and door lock/unlock switch. 

NO

>> GO TO 2

2.

 CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

Monitor item

Condition

KEY CYL LK-SW

Lock

: ON

Neutral / Unlock

: OFF

KEY CYL UN-SW

Unlock

: ON

Neutral / Lock

: OFF

Terminals

Key position

Voltage (V)

(Approx.)

(+)

(–)

Main power window 

and door lock/unlock 

switch connector

Terminal 

D7

4

Ground

Lock

0

Neutral/Unlock

5

6

Unlock

0

Neutral/Lock

5

ALKIA0309ZZ

DOOR KEY CYLINDER SWITCH

PWC-37

< COMPONENT DIAGNOSIS >

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1. Turn ignition switch OFF.

2. Disconnect main power window and door lock/unlock switch and

front door lock assembly LH (key cylinder switch).

3. Check continuity between main power window and door lock/

unlock switch connector and front door lock assembly LH (key

cylinder switch) connector.

4. Check continuity between main power window and door lock/unlock switch connector and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between front door lock assembly LH (key cylinder

switch) connector and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

 CHECK DOOR KEY CYLINDER SWITCH

Check door key cylinder switch.

Refer to 

PWC-37, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

NO

>> Replace front door lock assembly LH (door key cylinder switch). 

Component Inspection

INFOID:0000000005147216

COMPONENT INSPECTION

1.

 CHECK DOOR KEY CYLINDER SWITCH

Main power window 

and door lock/unlock 

switch connector

Terminal

Front door lock as-

sembly LH (key cylin-
der switch) connector

Terminal

Continuity

D7 (A)

4

D14 (B)

1

Yes

6

6

Main power window and door 

lock/unlock switch connector

Terminal

Ground

Continuity 

D7 (A)

4

No

6

ALKIA1025ZZ

Front door lock assembly LH (key 

cylinder switch) connector

Terminal

Ground

Continuity 

D14

5

Yes

LIIA1572E

PWC-38

< COMPONENT DIAGNOSIS >

DOOR KEY CYLINDER SWITCH

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

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

>> Replace front door lock assembly LH (key cylinder switch).

Terminal

Key position

Continuity

Front door lock assembly LH 

(key cylinder switch) connector

6 

5

Unlock

Yes

Neutral/Lock

No

1

Lock

Yes

Neutral/Unlock

No

LIIA1573E

POWER WINDOW SERIAL LINK

PWC-39

< COMPONENT DIAGNOSIS >

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POWER WINDOW SERIAL LINK

POWER WINDOW MAIN SWITCH
POWER WINDOW MAIN SWITCH : Description

INFOID:0000000005147217

Main power window and door lock/unlock switch, power window and door lock/unlock switch RH and BCM

transmit and receive the signal by power window serial link.

The signal mentioned below is transmitted from BCM to main power window and door lock/unlock switch and

power window and door lock/unlock switch RH

•  Keyless power window down signal

The signal mentioned below is transmitted from main power window and door lock/unlock switch to power win-

dow and door lock/unlock switch RH

• Front door window RH operation signal

• Power window control by key cylinder switch signal

• Power window lock switch signal

• Retained power operation signal 

POWER WINDOW MAIN SWITCH : Component Function Check

INFOID:0000000005147218

1.

 CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL

Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-

TEM” with CONSULT-III. Refer to 

BCS-17, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-39, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"

.

POWER WINDOW MAIN SWITCH : Diagnosis Procedure

INFOID:0000000005147219

Regarding Wiring Diagram information, refer to 

PWC-53, "Wiring Diagram"

.

1.

 CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL

1. Remove Intelligent Key or ignition key, and close front door LH

and RH.

2. Check signal between BCM connector and ground with oscillo-

scope when door lock and unlock switch (LH and RH) is turned

to “LOCK” or “UNLOCK”.

3. Check that signals which are shown in the figure below can be

detected during 10 second just after door lock and unlock switch

(LH and RH) is turned to “LOCK” or “UNLOCK”.

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

LIIA0391E