Infiniti QX56 (JA60). Manual - part 240

BACK DOOR CLOSE (CLOSE) SWITCH SYSTEM

DLK-131

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

BACK DOOR CLOSE (CLOSE) SWITCH SYSTEM

Diagnosis Procedure

INFOID:0000000005147001

Regarding Wiring Diagram information, refer to 

DLK-199, "Wiring Diagram—AUTOMATIC BACK DOOR SYS-

TEM—"

.

1.

BACK DOOR CLOSE SWITCH FUNCTION INSPECTION

Check back door close (close) switch using switch operation.
Is the inspection result normal?

YES

>> Back door close switch is OK.

NO

>> GO TO 2

2.

BACK DOOR CLOSE SWITCH SIGNAL INSPECTION

1. Turn ignition switch OFF.

2. While operating the back door close switch, check voltage

between back door control unit connector B55 terminal 8 and

ground.

Is the inspection result normal?

YES

>> Switch is OK.

NO

>> GO TO 3

3.

BACK DOOR CLOSE SWITCH CIRCUIT INSPECTION

1. Disconnect back door close switch and back door control unit connector.

2. Check continuity between back door control unit connector (A)

B55 terminal 8 and back door close switch connector (B) B63

terminal 1.

3. Check continuity between back door control unit connector (A)

B55 terminal 8 and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair the harness between the back door close switch and the back door control unit.

4.

BACK DOOR CLOSE SWITCH GROUND INSPECTION

Terminals

Measuring condition

Voltage (V)

(Approx.)

(+)

(-)

8

Ground

Back door 

close switch

ON

0

OFF

Battery voltage

LIIA0805E

8 - 1

: Continuity should exist.

8 - Ground : Continuity should not exist.

ALKIA0669ZZ

DLK-132

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

BACK DOOR CLOSE (CLOSE) SWITCH SYSTEM

Check continuity between back door close switch connector B63 ter-

minal 3 and ground.

Is the inspection result normal?

YES

>> Replace the back door close switch.

NO

>> Repair the harness between the back door close switch

and ground.

3 - Ground

: Continuity should exist.

WIIA0602E

BACK DOOR CLOSE (CANCEL) SWITCH SYSTEM

DLK-133

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

BACK DOOR CLOSE (CANCEL) SWITCH SYSTEM

Diagnosis Procedure

INFOID:0000000005147002

Regarding Wiring Diagram information, refer to 

DLK-199, "Wiring Diagram—AUTOMATIC BACK DOOR SYS-

TEM—"

.

1.

BACK DOOR CLOSE SWITCH FUNCTION INSPECTION

Check back door close (cancel) switch using switch operation.
Is the inspection result normal?

YES

>> Back door close switch is OK.

NO

>> GO TO 2

2.

BACK DOOR CLOSE (CANCEL) SWITCH SIGNAL INSPECTION

1. Turn ignition switch OFF.

2. While operating the back door close (cancel) switch, check volt-

age between back door control unit connector B55 terminal 13

and ground.

Is the inspection result normal?

YES

>> Switch is OK.

NO

>> GO TO 3

3.

BACK DOOR CLOSE (CANCEL) SWITCH CIRCUIT INSPECTION

1. Disconnect back door close switch and back door control unit connector.

2. Check continuity between back door control unit connector (A)

B55 terminal 13 and back door close switch connector (B) B63

terminal 5.

3. Check continuity between back door control unit connector (A)

B55 terminal 13 and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair the harness between the back door close switch and the back door control unit.

4.

BACK DOOR CLOSE SWITCH GROUND INSPECTION

Terminals

Measuring condition

Voltage (V)

(Approx.)

(+)

(-)

13

Ground

Back door 

close switch

ON

0

OFF

5

LIIA1068E

13 - 5

: Continuity should exist.

13 - Ground

: Continuity should not exist.

ALKIA0671ZZ

DLK-134

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

BACK DOOR CLOSE (CANCEL) SWITCH SYSTEM

Check continuity between back door close switch connector B63 ter-

minal 3 and ground.

Is the inspection result normal?

YES

>> Replace the back door close switch.

NO

>> Repair the harness between the back door close switch

and ground.

3 - Ground

: Continuity should exist.

WIIA0602E