Infiniti QX56 (Z62). Manual — part 1035

PWC-52

< DTC/CIRCUIT DIAGNOSIS >

ENCODER

NO

>> Repair or replace harness.

DOOR KEY CYLINDER SWITCH

PWC-53

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

DOOR KEY CYLINDER SWITCH

Component Function Check

INFOID:0000000006217309

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-39, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Door key cylinder switch is OK.

NO

>> Refer to

PWC-53, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006217310

1.

CHECK DOOR KEY CYLINDER SWITCH SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) (door key cylinder switch) connect.

3.

Turn ignition switch ON.

4.

Check voltage between front door lock assembly (driver side) (door key cylinder switch) harness connec-
tor and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK DOOR KEY CYLINDER SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect power window main switch connector.

3.

Check continuity between power window main switch harness connector and front door lock assembly
(driver side) (door key cylinder switch) harness connector.

4.

Check continuity between power window main switch harness connector and ground.

Monitor item

Condition

KEY CYL LK-SW

Lock

: ON

Neutral / Unlock

: OFF

KEY CYL UN-SW

Unlock

: ON

Neutral / Lock

: OFF

(+)

(–)

Voltage (V)

(Approx.)

Front door lock assembly (driver side) (door key cylinder

switch)

Connector

Terminal

D9

5

Ground

5

6

Power window main switch

Front door lock assembly (driver side) (door key cyl-

inder switch)

Continuity

Connector

Terminal

Connector

Terminal

D5

4

D9

6

Existed

6

5

PWC-54

< DTC/CIRCUIT DIAGNOSIS >

DOOR KEY CYLINDER SWITCH

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to

PWC-74, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between front door lock assembly (driver side) (door key cylinder switch) harness connector
and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK DOOR KEY CYLINDER SWITCH

Check front door lock assembly (driver side) (door key cylinder switch).
Refer to

PWC-54, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace front door lock assembly (driver side) (door key cylinder switch). Refer to

DLK-240,

"DOOR LOCK : Removal and Installation"

.

5.

CHECK INTERMITTENT INCIDENT

Refer to

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000006217311

COMPONENT INSPECTION

1.

CHECK DOOR DOOR KEY CYLINDER SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) (door key cylinder switch) connector.

3.

Check front door lock assembly (driver side) (door key cylinder switch).

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace front door lock assembly (driver side) (door key cylinder switch). Refer to

DLK-240,

"DOOR LOCK : Removal and Installation"

.

Power window main switch

Ground

Continuity

Connector

Terminal

D5

4

Not existed

6

Front door lock assembly (driver side) (door key cylinder switch)

Ground

Continuity

Connector

Terminal

D9

4

Existed

Front door lock assembly (driver side) (door key cylinder switch)

Key position

Continuity

Terminal

5

4

Unlock

Existed

Neutral / Lock

Not existed

6

Lock

Existed

Neutral / Unlock

Not existed

POWER WINDOW SERIAL LINK

PWC-55

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

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L

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A

B

PWC

N

O

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POWER WINDOW SERIAL LINK

POWER WINDOW MAIN SWITCH

POWER WINDOW MAIN SWITCH : Component Function Check

INFOID:0000000006217312

1.

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

With CONSULT-III

Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to

DLK-39, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to

PWC-55, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"

.

POWER WINDOW MAIN SWITCH : Diagnosis Procedure

INFOID:0000000006217313

1.

CHECK POWER WINDOW SWITCH INPUT SIGNAL

1.

Turn ignition switch ON.

2.

Check signal between power window main switch harness connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 2.

2.

CHECK POWER WINDOW SERIAL LINK SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect power window main switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between power window main switch harness connector and ground.

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to

PWC-74, "Removal and Installation"

.

Monitor item

Condition

CDL LOCK SW

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW

LOCK

: OFF

UNLOCK

: ON

(+)

(–)

Signal

(Reference value)

power window main switch

Connector

Terminal

D5

14

Ground

JPMIA0013GB

(+)

(–)

Voltage (V)

(Approx.)

Power window main switch

Connector

Terminal

D5

14

Ground

12