Nissan Murano. Instruction — part 364
B2403 ENCODER
DLK-67
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
B2403 ENCODER
Description
INFOID:0000000009718930
The automatic back door control unit receives the pulse signals from encoders A and B that occurred due to
synchronization with the back door operation. The automatic back door control unit calculates the back door
position, operation direction, and operation speed according to the received pulse signals.
DTC Logic
INFOID:0000000009718931
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Operate automatic back door.
3.
Check “Self Diagnostic Result” with CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009718932
1.
CHECK ENCODER SIGNAL
Check encoder (“ENCODER A”, “ENCODER B”) in Data Monitor mode.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-44, "Intermittent Incident"
.
NO
>> GO TO 2.
2.
CHECK ENCODER POWER SUPPLY
1.
Turn ignition switch OFF.
2.
Disconnect automatic back door unit connector.
3.
Check voltage between automatic back door unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2403
ENCODER
When the automatic back door control unit cannot re-
ceive the signal from the encoder just after starting the
open/close operation
• Encoder
• Harness or connectors
(Encoder circuit is open or short-
ed)
• Automatic back door control unit
Monitor item
Condition
Status
ENCODER A
Back door
Moving
Change HI or LO
Stop
No change HI or LO
ENCODER B
Back door
Moving
Change HI or LO
Stop
No change HI or LO
(+)
(–)
Voltage (V)
(Approx.)
Automatic back door unit connector
Connector
Terminal
B76
2
Ground
Battery voltage
DLK-68
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2403 ENCODER
3.
CHECK ENCODER POWER SUPPLY CIRCUIT
1.
Disconnect automatic back door control unit connector.
2.
Check continuity between automatic back door control unit harness connector and automatic back door
unit harness connector.
3.
Check continuity between automatic back door control unit harness connector and ground.
Is the inspection result normal?
YES
>> Replace automatic back door control unit. Refer to
DLK-368, "Removal and Installation"
.
NO
>> Repair or replace harness.
4.
CHECK ENCODER GROUND CIRCUIT
1.
Disconnect automatic back door control unit connector.
2.
Check continuity between automatic back door control unit harness connector and automatic back door
unit harness connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK ENCODER SIGNAL CIRCUIT
1.
Check continuity between automatic back door control unit harness connector and automatic back door
unit harness connector.
2.
Check continuity between automatic back door control unit connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace harness.
6.
CHECK ENCODER
1.
Connect automatic back door control unit connector and automatic back door unit connector
2.
Check voltage between automatic back door control unit and ground.
Automatic back door control unit
Automatic back door unit
Continuity
Connector
Terminal
Connector
Terminal
B8
26
B76
2
Existed
Automatic back door control unit
Ground
Continuity
Connector
Terminal
B8
26
Not existed
Automatic back door control unit
Automatic back door unit
Continuity
Connector
Terminal
Connector
Terminal
B8
23
B76
6
Existed
Automatic back door control unit
Automatic back door unit
Continuity
Connector
Terminal
Connector
Terminal
B8
24
B76
5
Existed
25
1
Automatic back door control unit
Ground
Continuity
Connector
Terminal
B8
24
Not existed
25
B2403 ENCODER
DLK-69
< 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 automatic back door control unit. Refer to
DLK-368, "Removal and Installation"
.
NO
>> Replace automatic back door unit. Refer to
DLK-352, "POWER BACK DOOR DRIVE ASSEMBLY
.
(+)
(–)
Condition
Voltage (V)
(Approx.)
Automatic back door control unit
Connector
Terminal
B8
24
Ground
Back door
Moving
Stop
0/Battery voltage
25
Ground
Back door
Moving
Stop
0/Battery voltage
JMKIA1864ZZ
JMKIA1864ZZ
DLK-70
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2409 HALF LATCH SWITCH
B2409 HALF LATCH SWITCH
Description
INFOID:0000000009718933
The half latch switch is integrated in the back door lock assembly and it detects the half latch condition of the
back door lock.
DTC Logic
INFOID:0000000009718934
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Operate power back door from closed to open.
3.
Check “Self Diagnostic Result” CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009718935
1.
CHECK HALF LATCH SWITCH SIGNAL
Check half latch switch (“HALF LATCH SW”) in Data Monitor mode.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 2.
2.
CHECK AUTOMATIC BACK DOOR CONTROL UNIT OUTPUT
1.
Turn ignition switch OFF.
2.
Disconnect back door lock assembly connector.
3.
Check voltage between back door lock assembly harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK HALF LATCH SWITCH CIRCUIT
1.
Disconnect automatic back door control unit connector.
2.
Check continuity between automatic back door control unit harness connector and back door lock assem-
bly harness connector.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2409
HALF LATCH
SWITCH
When the automatic back door control unit cannot
detect the half latch switch ON condition even when
the back door is in the open position
• Half latch switch
• Harness or connectors
(Half latch switch circuit is open)
• Automatic back door control unit
Monitor item
Condition
Status
HALF LATCH SW
Back door lock
Fully closed/Half latch
OFF
Open
ON
(+)
(–)
Voltage (V)
(Approx.)
Back door lock assembly
Connector
Terminal
D179
6
Ground
Battery voltage
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