Infiniti QX56 (JA60). Manual — part 223

LUGGAGE AREA ANTENNA

DLK-63

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3. Check continuity between Intelligent Key unit harness connector

(A) M70 terminals 35, 36 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness between Intelligent Key unit and luggage area antenna.

3.

CHECK INSIDE KEY ANTENNA POWER SUPPLY SINGAL

1. Replace luggage area antenna. (New antenna or other antenna)

2. Connect Intelligent Key unit connector.

3. Check signal between Intelligent Key unit connector and ground

with oscilloscope.

Is the inspection result normal?

YES

>> Replace luggage area antenna.

NO

>> Replace Intelligent Key unit. Refer to

SEC-120, "Removal and Installation"

.

Intelligent Key
unit connector

Terminals

Luggage area an-

tenna connector

Terminals

Continuity

A: M70

35

B: B76

1

Yes

36

2

Item

Connector

Terminals

Continuity

Intelligent Key

unit

A: M70

35

Ground

No

36

ALKIA0588ZZ

Connector

Item

Terminals

Condition

Signal (V)

(Reference value)

(+)

(–)

M70

Intelligent

Key unit

35

Ground

Ignition
switch is
pushed.

ALKIA0587ZZ

PIIB7441E

DLK-64

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

CENTER CONSOLE AREA ANTENNA (FRONT)

CENTER CONSOLE AREA ANTENNA (FRONT)

Description

INFOID:0000000005146917

Detects whether Intelligent Key is inside the vehicle.

Component Function Check

INFOID:0000000005146918

1.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL

With CONSULT-III

1. Check “ANTENNA” in “Active Test” mode with CONSULT-III.

2. Touch “ROOM ANT2”.

3. When Intelligent Key is in center console area antenna (front) detection area, hazard lamps flash.

Is the inspection result normal?

YES

>> Center console area antenna (front) is OK.

NO

>> Refer to

DLK-64, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146919

Regarding Wiring Diagram information, refer to

DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —

"

.

1.

CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL

1. Turn ignition switch OFF.

2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.

Is the inspection result normal?

YES

>> Center console area antenna (front) is OK.

NO

>> GO TO 2

2.

CHECK INSIDE KEY ANTENNA

1. Disconnect Intelligent Key unit connector and center console area antenna (front) connectors.

2. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 13, 14 and center con-

sole area antenna (front) harness connector (B) M210 terminals 1, 2.

Test Item

Condition

Possible cause

ROOM ANT2

An excessive high or low voltage from inside

antenna is sent to the Intelligent Key Unit

• Center console area antenna (front)
• Between Intelligent Key unit and center console area an-

tenna (front)

Connector

Item

Terminals

Condition

Signal (V)

(Reference value)

(+)

(–)

M70

Intelligent

Key unit

13

Ground

Ignition
switch is
pushed.

ALKIA0583ZZ

PIIB7441E

CENTER CONSOLE AREA ANTENNA (FRONT)

DLK-65

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3. Check continuity between Intelligent Key unit harness connector

(A) M70 terminals 13, 14 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness between Intelligent Key unit and center console area antenna (front).

3.

CHECK INSIDE KEY ANTENNA POWER SUPPLY SINGAL

1. Replace center console area antenna (front). (New antenna or other antenna)

2. Connect Intelligent Key unit connector.

3. Check signal between Intelligent Key unit connector and ground

with oscilloscope.

Is the inspection result normal?

YES

>> Replace center console area antenna (front).

NO

>> Replace Intelligent Key unit. Refer to

SEC-120, "Removal and Installation"

.

Intelligent Key
unit connector

Terminals

Center console area

antenna (front) con-

nector

Terminals

Continuity

A: M70

13

B: M210

1

Yes

14

2

Item

Connector

Terminals

Continuity

Intelligent Key

unit

A: M70

13

Ground

No

14

ALKIA0584ZZ

Connector

Item

Terminals

Condition

Signal (V)

(Reference value)

(+)

(–)

M70

Intelligent

Key unit

13

Ground

Ignition
switch is
pushed.

ALKIA0583ZZ

PIIB7441E

DLK-66

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

OVERHEAD CONSOLE AREA ANTENNA

OVERHEAD CONSOLE AREA ANTENNA

Description

INFOID:0000000005146920

Detects whether Intelligent Key is inside the vehicle.

Component Function Check

INFOID:0000000005146921

1.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL

With CONSULT-III

1. Check “ANTENNA” in “Active Test” mode with CONSULT-III.

2. Touch “ROOM ANT2”.

3. When Intelligent Key is in overhead console area antenna detection area, hazard lamps flash.

Is the inspection result normal?

YES

>> Overhead console area antenna is OK.

NO

>> Refer to

DLK-66, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146922

Regarding Wiring Diagram information, refer to

DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —

"

.

1.

CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL

1. Turn ignition switch OFF.

2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.

Is the inspection result normal?

YES

>> Overhead console area antenna is OK.

NO

>> GO TO 2

2.

CHECK INSIDE KEY ANTENNA

1. Disconnect Intelligent Key unit connector and overhead console area antenna connectors.

2. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 33, 34 and overhead

console area antenna harness connector (B) R210 terminals 1, 2.

Test Item

Condition

Possible cause

ROOM ANT2

An excessive high or low voltage from inside

antenna is sent to the Intelligent Key Unit

• Overhead console area antenna
• Between Intelligent Key unit and overhead console area

antenna

Connector

Item

Terminals

Condition

Signal (V)

(Reference value)

(+)

(–)

M70

Intelligent

Key unit

33

Ground

Ignition
switch is
pushed.

ALKIA0589ZZ

PIIB7441E