Nissan Murano. Manual — part 367
B2419 OPEN SWITCH
DLK-79
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK OPEN SWITCH CIRCUIT
1.
Disconnect automatic back door control unit and back door lock assembly connector.
2.
Check continuity between automatic back door control unit harness connector and back door lock assem-
bly 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 OPEN SWITCH GROUND CIRCUIT
Check continuity between back door lock assembly harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace back door lock assembly ground circuit.
5.
CHECK OPEN SWITCH
DLK-79, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace back door lock assembly. Refer to
DLK-351, "DOOR LOCK : Removal and Installation"
6.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000009718951
COMPONENT INSPECTION
1.
CHECK OPEN SWITCH
Check back door lock assembly (open switch).
Is the inspection result normal?
YES
>> INSPECTION END
Automatic back door control unit
Back door lock assembly
Continuity
Connector
Terminal
Connector
Terminal
B8
20
D179
4
Existed
Automatic back door control unit
Ground
Continuity
Connector
Terminal
B8
20
Not existed
Back door lock assembly
Ground
Continuity
Connector
Terminal
D179
8
Existed
Terminal
Condition
Continuity
Back door lock assembly (open switch)
4
8
Back door lock
Open
Existed
Fully closed/Half latch
Not existed
DLK-80
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2419 OPEN SWITCH
NO
>> Replace back door lock assembly. Refer to
B2420 CLOSE SWITCH
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
B2420 CLOSE SWITCH
Description
INFOID:0000000009718952
The close switch is integrated in the door lock assembly, and it detects the close condition of the back door
lock.
DTC Logic
INFOID:0000000009718953
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Operate automatic back door 3 times.
3.
Check “Self Diagnostic Result” with CONSULT.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009718954
1.
CHECK CLOSE SWITCH SIGNAL
Check close switch (“CLOSE 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 SIGNAL
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 CLOSE SWITCH CIRCUIT
1.
Disconnect automatic back door control unit connector.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2420
CLOSE SWITCH
When the automatic power back door control unit
detects any of the following conditions
• The change of close switch cannot be detected
for 3 second or more after starting the closure
close output for the 3rd time in a row
• Close switch
• Harness or connectors
(Close switch circuit is open or
shorted)
• Automatic back door control unit
Monitor item
Condition
Status
CLOSE SW
Back door lock
Open/Half latch
OFF
Fully closed
ON
(+)
(–)
Voltage (V)
(Approx.)
Back door lock assembly
Connector
Terminal
D179
5
Ground
Battery voltage
DLK-82
< DTC/CIRCUIT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2420 CLOSE SWITCH
2.
Check continuity between automatic back door control unit harness connector and back door lock assem-
bly 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 CLOSE SWITCH GROUND CIRCUIT
Check continuity between back door lock assembly harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK CLOSE SWITCH
DLK-148, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace back door lock assembly. Refer to
DLK-351, "DOOR LOCK : Removal and Installation"
6.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000009718955
COMPONENT INSPECTION
1.
CHECK CLOSE SWITCH
Check back door lock assembly (close switch).
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace back door lock assembly. Refer to
DLK-351, "DOOR LOCK : Removal and Installation"
Automatic back door control unit
Back door lock assembly
Continuity
Connector
Terminal
Connector
Terminal
B8
19
D179
5
Existed
Automatic back door control unit
Ground
Continuity
Connector
Terminal
B8
19
Not existed
Back door lock assembly
Ground
Continuity
Connector
Terminal
D179
8
Existed
Terminal
Condition
Continuity
Back door lock assembly (close switch)
5
8
Back door lock position
Fully closed
Existed
Open/Half latch
Not existed
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