Nissan Sentra. Manual - part 242

DLK-84

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2627 OUTSIDE ANTENNA

B2627 OUTSIDE ANTENNA

DTC Logic

INFOID:0000000009756381

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II

User Guide for additional information.

• Check Intelligent Key relative signal strength

• Confirm vehicle Intelligent Key antenna signal strength

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.
Is outside key antenna DTC detected?

YES

>> Refer to 

DLK-84, "Diagnosis Procedure"

.

NO

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

Diagnosis Procedure

INFOID:0000000009756382

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II

User Guide for additional information.

• Check Intelligent Key relative signal strength

• Confirm vehicle Intelligent Key antenna signal strength

Regarding Wiring Diagram information, refer to 

DLK-49, "Wiring Diagram"

.

1.

CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

1. Turn ignition switch ON.

2. Check signal between BCM harness connector and ground using oscilloscope.

DTC

CONSULT display 

description

DTC detecting condition

Possible cause

B2627

OUTSIDE ANTENNA 
2

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

• Outside key antenna (passenger 

side)

• Harness between BCM and out-

side key antenna (passenger side)

• BCM

B2627 OUTSIDE ANTENNA

DLK-85

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK OUTSIDE KEY ANTENNA CIRCUIT

1. Turn ignition switch OFF.

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

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

connector. 

4. 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. Turn ignition switch ON.

4. Check signal between BCM harness connector and ground using oscilloscope.

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

M83

51
50

Ground

When the passenger 
side door request 
switch is operated 
with ignition switch 
OFF

When Intelli-
gent Key is in 
the antenna de-
tection area 
(The distance 
between Intelli-
gent Key and 
antenna: 80 cm 
or less)

When Intelli-
gent Key is not 
in the antenna 
detection area 
(The distance 
between Intelli-
gent Key and 
antenna: Ap-
prox. 2 m)

JMKIA5955GB

JMKIA5954GB

BCM

Outside key antenna (passenger side)

Continuity 

Connector

Terminal

Connector

Terminal

M83

51

D108

1

Yes

50

2

BCM

Ground

Continuity 

Connector

Terminal

M83

51

No

50

DLK-86

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2627 OUTSIDE ANTENNA

Is the inspection result normal?

YES

>> Replace outside key antenna (passenger side). 

NO

>> Replace BCM. Refer to 

BCS-73, "Removal and Installation"

.

(+)

(–)

Condition

Signal

(Reference value)

BCM

Connector

Terminal

M83

51
50

Ground

When the passenger 
side door request 
switch is operated with 
ignition switch OFF

When Intelli-
gent Key is in 
the antenna de-
tection area 
(The distance 
between Intelli-
gent Key and 
antenna: 80 cm 
or less)

When Intelli-
gent Key is not 
in the antenna 
detection area 
(The distance 
between Intelli-
gent Key and 
antenna: Ap-
prox. 2 m)

JMKIA5955GB

JMKIA5954GB

B2628 OUTSIDE ANTENNA

DLK-87

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

B2628 OUTSIDE ANTENNA

DTC Logic

INFOID:0000000009756383

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II

User Guide for additional information.

• Check Intelligent Key relative signal strength

• Confirm vehicle Intelligent Key antenna signal strength

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.
Is outside key antenna DTC detected?

YES

>> Refer to 

DLK-87, "Diagnosis Procedure"

.

NO

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

Diagnosis Procedure

INFOID:0000000009756384

NOTE:

The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II

User Guide for additional information.

• Check Intelligent Key relative signal strength

• Confirm vehicle Intelligent Key antenna signal strength

Regarding Wiring Diagram information, refer to 

DLK-49, "Wiring Diagram"

.

1.

CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

1. Turn ignition switch ON.

2. Check signal between BCM harness connector and ground using oscilloscope.

DTC

CONSULT display 

description

DTC detecting condition

Possible cause

B2628

OUTSIDE ANTENNA 
3

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

• Outside key antenna (rear 

bumper)

• Harness between BCM and out-

side key antenna (rear bumper)

• BCM