Infiniti QX56 (Z62). Manual - part 411

 

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Infiniti QX56 (Z62). Manual - part 411

 

 

DLK-110

< DTC/CIRCUIT DIAGNOSIS >

B2626 OUTSIDE ANTENNA

B2626 OUTSIDE ANTENNA

DTC Logic

INFOID:0000000006225914

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

Is DTC detected?

YES

>> Refer to 

DLK-108, "Diagnosis Procedure"

.

NO

>> Outside key antenna (driver side) is OK.

Diagnosis Procedure

INFOID:0000000006225915

1.

CHECK OUTSIDE 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 OUTSIDE KEY ANTENNA CIRCUIT

1.

Disconnect BCM connector and outside key antenna (driver side) connector.

2.

Check continuity between BCM harness connector and outside key antenna (driver side) harness connec-
tor.

DTC

CONSULT-III display 

description

DTC detecting condition

Possible cause

B2626

OUTSIDE ANTENNA

An excessive high or low voltage from outside key 
antenna (driver side) is sent to BCM

• Outside key antenna (driver side)
• Between BCM

∼

Outside key an-

tenna (driver side)

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Driver side

M71

78, 79

Ground

When Intelligent Key is in the 
antenna detection area

When Intelligent Key is not in 
the antenna detection area

JMKIA3839GB

JMKIA3838GB

B2626 OUTSIDE ANTENNA

DLK-111

< 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 OUTSIDE KEY ANTENNA INPUT SIGNAL 2

1.

Replace outside key antenna (driver side). (New antenna or other antenna)

2.

Connect BCM connector and outside key antenna (driver side) connector.

3.

Check signal between BCM harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> Replace outside key antenna (driver side).

NO

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

BCM

Outside key antenna (driver side)

Continuity 

Connector

Terminal

Connector

Terminal

M71

78

D12

1

Existed

79

2

BCM

Ground

Continuity 

Connector

Terminal

M71

78

Not existed

79

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Driver side

M71

78, 79

Ground

When Intelligent Key is in 
the antenna detection area

When Intelligent Key is not 
in the antenna detection 
area

JMKIA3839GB

JMKIA3838GB

DLK-112

< DTC/CIRCUIT DIAGNOSIS >

B2627 OUTSIDE ANTENNA

B2627 OUTSIDE ANTENNA

DTC Logic

INFOID:0000000006225916

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self Diagnostic Result” mode of “BCM” using CONSULT-III.

Is DTC detected?

YES

>> Refer to 

DLK-108, "Diagnosis Procedure"

.

NO

>> Outside key antenna (passenger side) is OK.

Diagnosis Procedure

INFOID:0000000006225917

1.

CHECK OUTSIDE 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 OUTSIDE KEY ANTENNA CIRCUIT

1.

Disconnect BCM connector and outside key antenna (passenger side) connector.

2.

Check continuity between BCM harness connector and outside key antenna (passenger side) harness
connector.

DTC

CONSULT-III display 

description

DTC detecting condition

Possible cause

B2627

OUTSIDE ANTENNA

An excessive high or low voltage from outside key 
antenna (passenger side) is sent to BCM

• Outside key antenna (passenger 

side)

• Between BCM

∼

Outside key an-

tenna (passenger side)

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Passenger 
side

M71

80, 81

Ground

When Intelligent Key is in the an-
tenna detection area

When Intelligent Key is not in the 
antenna detection area

JMKIA3839GB

JMKIA3838GB

B2627 OUTSIDE ANTENNA

DLK-113

< 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 OUTSIDE KEY ANTENNA INPUT SIGNAL 2

1.

Replace outside key antenna (passenger side). (New antenna or other antenna)

2.

Connect BCM connector and outside key antenna (passenger side) connector.

3.

Check signal between BCM harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> Replace outside key antenna (passenger side).

NO

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

BCM

Outside key antenna (passenger side)

Continuity 

Connector

Terminal

Connector

Terminal

M71

80

D32

1

Existed

81

2

BCM

Ground

Continuity 

Connector

Terminal

M71

80

Not existed

81

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Passenger 
side

M71

80, 81

Ground

When Intelligent Key is in the 
antenna detection area

When Intelligent Key is not in 
the antenna detection area

JMKIA3839GB

JMKIA3838GB

 

 

 

 

 

 

 

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