Nissan Sentra. Manual — part 241
DLK-80
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2623 INSIDE ANTENNA
Is the inspection result normal?
YES
>> Replace inside key antenna (trunk room).
NO
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
(+)
(–)
Condition
Signal
(Reference value)
BCM
Connector
Terminal
M83
43
42
Ground
When Intelligent Key is in the anten-
na detection area
When Intelligent Key is not in the an-
tenna detection area
JMKIA3839GB
JMKIA5951GB
B2626 OUTSIDE ANTENNA
DLK-81
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
B2626 OUTSIDE ANTENNA
DTC Logic
INFOID:0000000009756379
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 DTC detected?
YES
>> Refer to
.
NO
>> Outside key antenna (driver side) is OK.
Diagnosis Procedure
INFOID:0000000009756380
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
.
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
B2626
OUTSIDE ANTENNA
1
An excessive high or low voltage from outside key
antenna (driver side) is sent to BCM
• Outside key antenna (driver side)
• Harness between BCM and out-
side key antenna (driver side)
• BCM
DLK-82
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2626 OUTSIDE ANTENNA
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 (driver side) connector.
3. Check continuity between BCM harness connector and outside key antenna (driver side) harness connec-
tor.
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 (driver side). (New antenna or other antenna)
2. Connect BCM connector and outside key antenna (driver 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
53
52
Ground
When the driver door
request switch is op-
erated with ignition
switch OFF
When Intelligent
Key is in the an-
tenna detection
area (The dis-
tance between
Intelligent Key
and antenna: 80
cm or less)
When Intelligent
Key is not in the
antenna detec-
tion area (The
distance be-
tween Intelli-
gent Key and
antenna: Ap-
prox. 2 m)
JMKIA5955GB
JMKIA5954GB
BCM
Outside key antenna (driver side)
Continuity
Connector
Terminal
Connector
Terminal
M83
53
D6
1
Yes
52
2
BCM
Ground
Continuity
Connector
Terminal
M83
53
No
52
B2626 OUTSIDE ANTENNA
DLK-83
< 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 outside key antenna (driver side).
NO
>> Replace BCM. Refer to
BCS-73, "Removal and Installation"
(+)
(–)
Condition
Signal
(Reference value)
BCM
Connector
Terminal
M83
52
53
Ground
When the driver
door request switch
is operated with igni-
tion switch OFF
When Intelligent
Key is in the an-
tenna detection
area (The dis-
tance between
Intelligent Key
and antenna: 80
cm or less)
When Intelligent
Key is not in the
antenna detec-
tion area (The
distance be-
tween Intelli-
gent Key and
antenna: Ap-
prox. 2 m)
JMKIA5955GB
JMKIA5954GB
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