Infiniti G35 (V35) Sedan. Manual - part 350

B2622 INSIDE KEY ANTENNA 2

DLK-61

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

2.

Check continuity between BCM connector and inside key antenna connector.

3.

Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness between BCM and inside key antenna.

3.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

1.

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

2.

Connect BCM and inside key antenna (console) connector.

3.

Check signal between BCM connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> Replace inside key antenna (console). Refer to 

DLK-219, "CONSOLE : Removal and Installation"

.

NO

>> Replace BCM. Refer to 

BCS-79, "Removal and Installation"

.

BCM connector

Terminal

Inside key antenna connector

Terminal

Continuity 

M122

72

M146

Console

2

Existed

73

1

BCM connector

Terminal

Ground

Continuity 

M122

Console

72

Not existed

73

Terminals

Condition

Signal

(Reference value.)

(+)

(–)

BCM connector

Terminal

M122

Console

73

Ground

Place Intelligent Key inside the ve-
hicle.

Place Intelligent Key outside the 
vehicle. 

JMKIA0062GB

JMKIA0063GB

DLK-62

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

B2623 INSIDE KEY ANTENNA 3

B2623 INSIDE KEY ANTENNA 3

Description

INFOID:0000000000961132

Detects whether Intelligent Key is inside the vehicle.
Installed in the trunk room.

DTC Logic

INFOID:0000000000961133

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

 With CONSULT-III

1.

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

2.

Perform “INTELLIGENT KEY”  Self Diagnostic Result.

Is inside key antenna DTC detected?

YES

>> Refer to 

DLK-62, "Diagnosis Procedure"

.

NO

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

Diagnosis Procedure

INFOID:0000000000961134

1.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1

1.

Turn ignition switch OFF.

2.

Check signal between BCM connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> Check the condition of harness and connector.

NO

>> GO TO 2.

2.

CHECK INSIDE KEY ANTENNA CIRCUIT

1.

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

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2623

INSIDE ANTENNA 3 
CIRCUIT

An excessive high or low voltage from inside anten-
na is sent to BCM.

• Inside key antenna (trunk room)
• Between BCM

∼

Inside key anten-

na (trunk room)

Terminals

Condition

Signal

(Reference value.)

(+)

(–)

BCM connector

Terminal

M121

Trunk room

35

Ground

Place Intelligent Key inside the 
vehicle.

Place Intelligent Key outside 
the vehicle. 

JMKIA0062GB

JMKIA0063GB

B2623 INSIDE KEY ANTENNA 3

DLK-63

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

2.

Check continuity between BCM connector and inside key antenna (trunk room) connector.

3.

Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness between BCM and inside key antenna (trunk room).

3.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2

1.

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

2.

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

3.

Check signal between BCM connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> Replace inside key antenna (trunk room). Refer to 

DLK-219, "TRUNK ROOM : Removal and

Installation"

.

NO

>> Replace BCM. Refer to 

BCS-79, "Removal and Installation"

.

BCM connector

Terminal

Inside key antenna connector

Terminal

Continuity 

M121

34

B49

Trunk room

2

Existed

35

1

BCM connector

Terminal

Ground

Continuity 

M121

Trunk room

34

Not existed

35

Terminals

Condition

Signal

(Reference value.)

(+)

(–)

BCM connector

Terminal

M121

Trunk room

35

Ground

Place Intelligent Key inside 
the vehicle.

Place Intelligent Key outside 
the vehicle. 

JMKIA0062GB

JMKIA0063GB

DLK-64

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000000961135

1.

CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not fusing.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connectors.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Terminal No.

Signal name

Fuse and fusible link No.

1

Battery power supply

K

11

10

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

M118

1

Battery voltage

M119

11

BCM

Ground

Continuity

Connector

Terminal

M119

13

Existed