Infiniti QX56 (Z62). Manual — part 410

DLK-106

< DTC/CIRCUIT DIAGNOSIS >

B2622 INSIDE ANTENNA

B2622 INSIDE ANTENNA

DTC Logic

INFOID:0000000006225910

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.

2.

Select “INSIDE ANT DIAGNOSIS” in “WORK SUPPORT” mode.

3.

Perform inside key antenna (“INSIDE ANT DIAGNOSIS”) on “WORK SUPPORT” of “INTELLIGENT
KEY”.

4.

Check BCM for DTC.

Is inside key antenna DTC detected?

YES

>> Refer to

DLK-106, "Diagnosis Procedure"

.

NO

>> Inside key antenna (console) is OK.

Diagnosis Procedure

INFOID:0000000006225911

1.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1

1.

Turn ignition switch OFF.

2.

Check signal between BCM harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-81, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK INSIDE KEY ANTENNA CIRCUIT

1.

Disconnect BCM connector and inside key antenna (console) connector.

2.

Check continuity between BCM harness connector and inside key antenna (console) harness connector.

DTC

CONSULT-III display

description

DTC detecting condition

Possible cause

B2622

INSIDE ANTENNA

An excessive high or low voltage from inside anten-
na (console) is sent to BCM

• Inside key antenna (console)
• Between BCM

∼

Inside key anten-

na (console)

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Console

M71

86, 87

Ground

When Intelligent Key is in the an-
tenna detection area

When Intelligent Key is not in the
antenna detection area

JMKIA3839GB

JMKIA3838GB

B2622 INSIDE ANTENNA

DLK-107

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

1.

Replace inside key antenna (console). (New antenna or other antenna)

2.

Connect BCM connector and inside key antenna (console) connector.

3.

Check signal between BCM harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> Replace inside key antenna (console).

NO

>> Replace BCM. Refer to

BCS-81, "Removal and Installation"

.

BCM

Inside key antenna (console)

Continuity

Connector

Terminal

Connector

Terminal

M71

86

M107

1

Existed

87

2

BCM

Ground

Continuity

Connector

Terminal

M71

86

Not existed

87

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Console

M71

86, 87

Ground

When Intelligent Key is in the an-
tenna detection area

When Intelligent Key is not in the
antenna detection area

JMKIA3839GB

JMKIA3838GB

DLK-108

< DTC/CIRCUIT DIAGNOSIS >

B2623 INSIDE ANTENNA

B2623 INSIDE ANTENNA

DTC Logic

INFOID:0000000006225912

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.

2.

Select “INSIDE ANT DIAGNOSIS” in “WORK SUPPORT” mode.

3.

Perform inside key antenna (“INSIDE ANT DIAGNOSIS”) on “WORK SUPPORT” of “INTELLIGENT
KEY”.

4.

Check BCM for DTC.

Is inside key antenna DTC detected?

YES

>> Refer to

DLK-108, "Diagnosis Procedure"

.

NO

>> Inside key antenna (luggage room) is OK.

Diagnosis Procedure

INFOID:0000000006225913

1.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1

1.

Turn ignition switch OFF.

2.

Check signal between BCM harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-81, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK INSIDE KEY ANTENNA CIRCUIT

1.

Disconnect BCM connector and inside key antenna (luggage room) connector.

2.

Check continuity between BCM harness connector and inside key antenna (luggage room) harness con-
nector.

DTC

CONSULT-III display

description

DTC detecting condition

Possible cause

B2622

INSIDE ANTENNA

An excessive high or low voltage from inside anten-
na (luggage room) is sent to BCM

• Inside key antenna (luggage room)
• Between BCM

∼

Inside key anten-

na (luggage room)

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Luggage
Room

M71

88, 89

Ground

When Intelligent Key is in the an-
tenna detection area

When Intelligent Key is not in the
antenna detection area

JMKIA3839GB

JMKIA3838GB

B2623 INSIDE ANTENNA

DLK-109

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

1.

Replace inside key antenna (luggage room). (New antenna or other antenna)

2.

Connect BCM connector and inside key antenna (luggage room) connector.

3.

Check signal between BCM harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> Replace inside key antenna (luggage room).

NO

>> Replace BCM. Refer to

BCS-81, "Removal and Installation"

.

BCM

Inside key antenna (luggage room)

Continuity

Connector

Terminal

Connector

Terminal

M71

88

B13

1

Existed

89

2

BCM

Ground

Continuity

Connector

Terminal

M71

88

Not existed

89

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Luggage
Room

M71

88, 89

Ground

When Intelligent Key is in the an-
tenna detection area

When Intelligent Key is not in the
antenna detection area

JMKIA3839GB

JMKIA3838GB