Nissan March K13. Manual - part 86

B2627 OUTSIDE ANTENNA

DLK-55

< DTC/CIRCUIT 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 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-57, "Removal and Installation"

.

BCM

Outside key antenna (passenger side)

Continuity 

Connector

Terminal

Connector

Terminal

M71

80

D12

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

DLK-56

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2628 OUTSIDE ANTENNA

B2628 OUTSIDE ANTENNA

DTC Logic

INFOID:0000000005948841

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 outside key antenna DTC detected?

YES

>> Refer to 

DLK-56, "Diagnosis Procedure"

.

NO

>> Outside key antenna (rear bumper) is OK.

Diagnosis Procedure

INFOID:0000000005948842

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-57, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK OUTSIDE KEY ANTENNA CIRCUIT

1.

Disconnect BCM connector and outside key antenna (rear bumper) connector.

2.

Check continuity between BCM harness connector and outside key antenna (rear bumper) harness con-
nector.

DTC

CONSULT-III display 

description

DTC detecting condition

Possible cause

B2623

OUTSIDE ANTENNA

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

• Outside key antenna (rear 

bumper)

• Between BCM – Outside key an-

tenna (rear bumper)

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Rear 
bumper

M71

82, 83

Ground

When Intelligent Key is in the 
antenna detection area

When Intelligent Key is not in 
the antenna detection area

JMKIA3839GB

JMKIA3838GB

B2628 OUTSIDE ANTENNA

DLK-57

< DTC/CIRCUIT 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 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 (rear bumper). (New antenna or other antenna)

2.

Connect BCM and outside key antenna (rear bumper) connector.

3.

Check signal between BCM harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> Replace outside key antenna (rear bumper)..

NO

>> Replace BCM. Refer to 

BCS-57, "Removal and Installation"

.

BCM

Outside key antenna (rear bumper)

Continuity 

Connector

Terminal

Connector

Terminal

M71

82

B108

1

Existed

83

2

BCM

Ground

Continuity 

Connector

Terminal

M71

82

Not existed

83

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

Rear 
bumper

M71

82, 83

Ground

When Intelligent Key is in the 
antenna detection area

When Intelligent Key is not in 
the antenna detection area

JMKIA3839GB

JMKIA3838GB

DLK-58

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR SWITCH

DOOR SWITCH

Component Function Check

INFOID:0000000005948845

1.

CHECK FUNCTION

1.

Select “DOOR LOCK” of “BCM” using CONSULT-III.

2.

Select “DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RL”, “DOOR SW-RR” and “DOOR SW-BK” in
“DATA MONITOR” mode.

3.

Check that the function operates normally according to the following conditions.

Is the inspection result normal?

YES

>> Door switch is OK.

NO

>> Refer to 

DLK-58, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005948846

1.

CHECK DOOR SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect malfunctioning door switch connector.

3.

Check signal between malfunctioning door switch harness connector and ground using oscilloscope.

Monitor item

Condition

Status

DOOR SW-DR

Driver side door

Open

ON

Closed

OFF

DOOR SW-AS

Passenger side door

Open

ON

Closed

OFF

DOOR SW-RL

Rear door LH

Open

ON

Closed

OFF

DOOR SW-RR

Rear door RH

Open

ON

Closed

OFF

DOOR SW-BK

Back door

Open

ON

Closed

OFF