Infiniti G37 Coupe. Manual — part 375
B2622 INSIDE KEY ANTENNA 2
DLK-61
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
C
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DLK
N
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B2622 INSIDE KEY ANTENNA 2
Description
INFOID:0000000001683052
Detects whether Intelligent Key is inside the vehicle.
Installed in the center console.
DTC Logic
INFOID:0000000001683053
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
.
NO
>> Inside key antenna (console) is OK.
Diagnosis Procedure
INFOID:0000000001683054
1.
CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1
1.
Turn ignition switch OFF.
2.
Check signal between BCM harness connector and ground with oscilloscope.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> GO TO 2.
2.
CHECK INSIDE KEY ANTENNA CIRCUIT
1.
Disconnect BCM connector and inside key antenna (console) connector.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2622
INSIDE ANTENNA 2
CIRCUIT
An excessive high or low voltage from inside anten-
na is sent to BCM.
• Inside key antenna (console)
• Between BCM and Inside key an-
tenna (console)
Terminals
Condition
Signal
(Reference value)
(+)
(–)
BCM connector
Terminal
M122
73
Ground
When Intelligent Key is in the pas-
senger compartment.
When Intelligent Key is not in the
passenger compartment.
JMKIA0062GB
JMKIA0063GB
DLK-62
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
B2622 INSIDE KEY ANTENNA 2
2.
Check continuity between BCM harness connector and inside key antenna (console) harness connector.
3.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness between BCM and inside key antenna (console).
3.
CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2
1.
Replace inside key antenna (console). (New antenna or other antenna)
2.
Connect BCM connector and inside key antenna (console) connector.
3.
Check signal between BCM harness connector and ground with oscilloscope.
Is the inspection result normal?
YES
>> Replace inside key antenna (console). Refer to
DLK-239, "CONSOLE : Removal and Installation"
.
NO
>> Replace BCM. Refer to
BCS-79, "Removal and Installation"
BCM connector
Terminal
Inside key antenna
(console) connector
Terminal
Continuity
M122
72
M146
2
Existed
73
1
BCM connector
Terminal
Ground
Continuity
M122
72
Not existed
73
Terminals
Condition
Signal
(Reference value)
(+)
(–)
BCM connector
Terminal
M122
73
Ground
When Intelligent Key is in the pas-
senger compartment.
When Intelligent Key is not in the
passenger compartment.
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
B2623 INSIDE KEY ANTENNA 3
Description
INFOID:0000000001683055
Detects whether Intelligent Key is inside the vehicle.
Installed in the trunk room.
DTC Logic
INFOID:0000000001683056
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
.
NO
>> Inside key antenna (trunk room) is OK.
Diagnosis Procedure
INFOID:0000000001683057
1.
CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1
1.
Turn ignition switch OFF.
2.
Check signal between BCM harness connector and ground with oscilloscope.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> GO TO 2.
2.
CHECK INSIDE KEY ANTENNA CIRCUIT
1.
Disconnect BCM connector 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 and Inside key an-
tenna (trunk room)
Terminals
Condition
Signal
(Reference value)
(+)
(–)
BCM connector
Terminal
M121
35
Ground
When Intelligent Key is in the
passenger compartment.
When Intelligent Key is not in the
passenger compartment.
JMKIA0062GB
JMKIA0063GB
DLK-64
< COMPONENT DIAGNOSIS >
[INTELLIGENT KEY SYSTEM]
B2623 INSIDE KEY ANTENNA 3
2.
Check continuity between BCM harness connector and inside key antenna (trunk room) harness connec-
tor.
3.
Check continuity between BCM harness 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 connector and inside key antenna (trunk room) connector.
3.
Check signal between BCM harness connector and ground with oscilloscope.
Is the inspection result normal?
YES
>> Replace inside key antenna (trunk room). Refer to
DLK-240, "TRUNK ROOM : Removal and
NO
>> Replace BCM. Refer to
BCS-79, "Removal and Installation"
BCM connector
Terminal
Inside key antenna
(trunk room) connector
Terminal
Continuity
M121
34
B49
2
Existed
35
1
BCM connector
Terminal
Ground
Continuity
M121
34
Not existed
35
Terminals
Condition
Signal
(Reference value)
(+)
(–)
BCM connector
Terminal
M121
35
Ground
When Intelligent Key is in the
passenger compartment.
When Intelligent Key is not in
the passenger compartment.
JMKIA0062GB
JMKIA0063GB
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