Nissan Murano Z51 (2008 year). Manual — part 96
DLK-68
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
U1000 CAN COMM CIRCUIT
1.
Turn ignition switch ON and wait for 2 seconds or more.
2.
Check “Self Diagnostic Result”.
Is “CAN COMM CIRCUIT” displayed?
YES
>> Refer to
LAN-16, "Trouble Diagnosis Flow Chart"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
Revision: 2008 October
2009 Murano
U1010 CONTROL UNIT (CAN)
DLK-69
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
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A
B
DLK
N
O
P
U1010 CONTROL UNIT (CAN)
BCM
BCM : DTC Logic
INFOID:0000000003318010
DTC DETECTION LOGIC
BCM : Diagnosis Procedure
INFOID:0000000003318011
1.
REPLACE BCM
When DTC [U1010] is detected, replace BCM.
>> Replace BCM. Refer to
BCS-96, "Removal and Installation"
BCM : Special Repair Requirement
INFOID:0000000003318012
1.
REQUIRED WORK WHEN REPLACING BCM
Initialize control unit. Refer to CONSULT-III operation manual NATS-IVIS/NVIS.
>> Work end.
AUTOMATIC BACK DOOR CONTROL UNIT
AUTOMATIC BACK DOOR CONTROL UNIT : DTC Logic
INFOID:0000000003430067
DTC DETECTION LOGIC
AUTOMATIC BACK DOOR CONTROL UNIT : Diagnosis Procedure
INFOID:0000000003430068
1.
REPLACE BCM
When DTC [U1010] is detected, replace automatic back door control unit.
>> Replace automatic back door control unit. Refer to
DLK-379, "Removal and Installation"
.
DTC
CONSULT-III display de-
scription
DTC Detection Condition
Possible cause
U1010
CONTROL UNIT (CAN)
BCM detected internal CAN communication circuit malfunction.
BCM
DTC
CONSULT-III dis-
play description
DTC Detection Condition
Possible cause
U1010
CONTROL UNIT
(CAN)
Automatic back door control unit detected inter-
nal CAN communication circuit malfunction
Automatic back door control unit
Revision: 2008 October
2009 Murano
DLK-70
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2401 IGNITION POWER SUPPLY CIRCUIT
B2401 IGNITION POWER SUPPLY CIRCUIT
Description
INFOID:0000000003430070
Automatic back door control unit receive ignition power supply condition signal from BCM via CAN communi-
cation, and compare the signal with ignition power supply condition of automatic back door control unit to
detect inflammation.
DTC Logic
INFOID:0000000003430071
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait for at least 1 second.
2.
Check “Self Diagnostic Result” with CONSULT-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003625815
1.
CHECK FUSE, FUSIBLE LINK AND CIRCUIT BREAKER
Check that the following fuse, fusible link and circuit breaker are not fusing.
Is the fuse fusing?
YES
>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect automatic back door control unit connector.
3.
Check voltage between automatic back door control unit harness connector and ground.
Is the measurement value normal?
YES
>> INSPECTION END
NO
>> Repair or replace harness.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2401
IGNITION POWER
SUPPLY CIRCUIT
When the automatic power back door control unit
detects the following condition for 0.3 second or
more
• Power supply condition (OFF) of automatic back
door unit and Ignition position signal (ON) from
BCM via CAN
• Fuse
• Harness or connectors
(Ignition power supply condition
circuit is open or shorted)
Fuse No.
Signal name
3
Ignition power supply
(+)
(
−
)
Condition
Voltage
(Approx.)
Automatic back door control unit
Connector
Terminal
B8
9
Ground
Ignition switch
ON
Battery voltage
Revision: 2008 October
2009 Murano
B2403 ENCODER
DLK-71
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
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DLK
N
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B2403 ENCODER
Description
INFOID:0000000003430088
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:0000000003430089
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-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003625816
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-40, "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
Revision: 2008 October
2009 Murano
DLK-72
< COMPONENT 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-379, "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
Revision: 2008 October
2009 Murano
B2403 ENCODER
DLK-73
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
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A
B
DLK
N
O
P
Is the inspection result normal?
YES
>> Replace automatic back door control unit. Refer to
DLK-379, "Removal and Installation"
.
NO
>> Replace automatic back door unit. Refer to
DLK-362, "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
Revision: 2008 October
2009 Murano
DLK-74
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2409 HALF LATCH SWITCH
B2409 HALF LATCH SWITCH
Description
INFOID:0000000003430085
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:0000000003430086
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-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003625818
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
Revision: 2008 October
2009 Murano
B2409 HALF LATCH SWITCH
DLK-75
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
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A
B
DLK
N
O
P
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-379, "Removal and Installation"
.
NO
>> Repair or replace harness.
4.
CHECK HALF LATCH 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 HALF LATCH SWITCH
DLK-75, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace back door lock assembly. Refer to
DLK-376, "Removal and Installation"
.
6.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000003625819
COMPONENT INSPECTION
1.
CHECK HALF LATCH SWITCH
Check back door lock assembly (half latch switch).
Is the inspection result normal?
YES
>> Half latch switch is OK.
NO
>> Replace back door lock assembly. Refer to
DLK-361, "DOOR LOCK : Removal and Installation"
Automatic back door control unit
Back door lock assembly
Continuity
Connector
Terminal
Connector
Terminal
B8
8
D179
6
Existed
Automatic back door control unit
Ground
Continuity
Connector
Terminal
B8
8
Not existed
Back door lock assembly
Ground
Continuity
Connector
Terminal
D179
8
Existed
Terminal
Condition
Continuity
Back door lock assembly (half latch switch)
6
8
Back door lock
Open
Existed
Fully closed/Half latch
Not existed
Revision: 2008 October
2009 Murano
DLK-76
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2416 TOUCH SENSOR RH
B2416 TOUCH SENSOR RH
Description
INFOID:0000000003430082
The touch sensor RH is installed on the right edge of the back door, and it detects any trapped foreign material
in the back door during the auto close operation and at the closure operation.
DTC Logic
INFOID:0000000003430083
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003625820
1.
CHECK TOUCH SENSOR RH SIGNAL
Check touch sensor RH (“TOUCH SEN RH”) 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 touch sensor RH connector.
3.
Check voltage between touch sensor RH harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK TOUCH SENSOR RH CIRCUIT
1.
Disconnect automatic back door control unit connector.
2.
Check continuity between automatic back door control unit harness connector and touch sensor RH har-
ness connector.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2416
TOUCH SENSOR
RH
When the automatic back door control unit detects
the open circuit of the touch sensor RH
• Touch sensor RH
• Harness or connectors
(Touch sensor RH circuit is short-
ed)
• Automatic back door control unit
Monitor item
Condition
Status
TOUCH SEN RH
Touch sensor RH
Other than below
OFF
Detect obstruction
ON
(+)
(–)
Voltage (V)
(Approx.)
Touch sensor RH
Connector
Terminal
D164
1
Ground
6
Revision: 2008 October
2009 Murano
B2416 TOUCH SENSOR RH
DLK-77
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
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-379, "Removal and Installation"
.
NO
>> Repair or replace harness.
4.
CHECK TOUCH SENSOR RH GROUND CIRCUIT
Check continuity between automatic back door control unit harness connector and touch sensor RH harness
connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK TOUCH SENSOR RH
DLK-77, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace touch sensor RH. Refer to
DLK-364, "TOUCH SENSOR : Removal and Installation"
6.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000003625821
1.
CHECK TOUCH SENSOR RH
Check touch sensor RH.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace touch sensor RH. Refer to
DLK-364, "TOUCH SENSOR : Removal and Installation"
Automatic back door control unit
Touch sensor RH
Continuity
Connector
Terminal
Connector
Terminal
B8
16
D164
1
Existed
Automatic back door control unit
Ground
Continuity
Connector
Terminal
B8
16
Not existed
Automatic back door control unit
Touch sensor RH
Continuity
Connector
Terminal
Connector
Terminal
B8
15
D164
2
Existed
Terminal
Condition
Resistance
(Approx.)
Touch sensor RH
1
2
Touch sensor RH
Detect obstruction
120
Ω
or less
Other than above
1 k
Ω
±
10%
Revision: 2008 October
2009 Murano
DLK-78
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2417 TOUCH SENSOR LH
B2417 TOUCH SENSOR LH
Description
INFOID:0000000003646508
The touch sensor LH is installed on the light edge of the back door, and it detects any trapped foreign material
in the back door during the auto close operation and at the closure operation.
DTC Logic
INFOID:0000000003430080
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Check “Self diagnostic result” with CONSULT-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003625822
1.
CHECK TOUCH SENSOR RH SIGNAL
Check touch sensor LH (“TOUCH SEN LH”) 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 touch sensor LH connector.
3.
Check voltage between touch sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK TOUCH SENSOR LH CIRCUIT
1.
Disconnect automatic back door control unit.
2.
Check continuity between automatic back door control unit harness connector and touch sensor LH har-
ness connector.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2417
TOUCH SENSOR LH
When the automatic back door control unit detects
the open circuit of the touch sensor LH.
• Touch sensor LH
• Harness or connectors
(Touch sensor LH circuit is open)
• Automatic back door control unit
Monitor item
Condition
Status
TOUCH SEN LH
Touch sensor LH
Other than below
OFF
Detect obstruction
ON
(+)
(–)
Voltage (V)
(Approx.)
Touch sensor LH
Connector
Terminal
D165
1
Ground
6
Revision: 2008 October
2009 Murano
B2417 TOUCH SENSOR LH
DLK-79
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
C
D
E
F
G
H
I
J
L
M
A
B
DLK
N
O
P
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-379, "Removal and Installation"
.
NO
>> Repair or replace harness.
4.
CHECK TOUCH SENSOR LH GROUND CIRCUIT
Check continuity between automatic back door control unit harness connector and touch sensor LH harness
connector.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness.
5.
CHECK TOUCH SENSOR LH
DLK-79, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace touch sensor LH. Refer to
DLK-364, "TOUCH SENSOR : Removal and Installation"
.
6.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000003625823
1.
CHECK TOUCH SENSOR LH
Check touch sensor LH.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace touch sensor LH. Refer to
DLK-364, "TOUCH SENSOR : Removal and Installation"
.
Automatic back door control unit
Touch sensor LH
Continuity
Connector
Terminal
Connector
Terminal
B8
14
D165
1
Existed
Automatic back door control unit
Ground
Continuity
Connector
Terminal
B8
14
Not existed
Automatic back door control unit
Touch sensor LH
Continuity
Connector
Terminal
Connector
Terminal
B8
15
D165
2
Existed
Terminal
Condition
Resistance
(Approx.)
Touch sensor LH
1
2
Touch sensor LH
Detect obstruction
120
Ω
or less
Other than above
1 k
Ω
±
10%
Revision: 2008 October
2009 Murano
DLK-80
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2418 CLUTCH POWER SUPPLY CIRCUIT
B2418 CLUTCH POWER SUPPLY CIRCUIT
Description
INFOID:0000000003430076
The clutch operates by the power supplied from the automatic back door control unit. It performs the duty con-
trol of the power supply to control the operation speed of the back door.
DTC Logic
INFOID:0000000003430077
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-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003625824
1.
CHECK CLUTCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect automatic back door control unit connector and automatic back door unit connector.
3.
Check continuity between automatic back door control unit harness connector and automatic back door
unit harness connector.
4.
Check continuity between automatic back door control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness.
2.
CHECK CLUTCH
1.
Connect automatic back door control unit connector and automatic back door unit connector.
2.
Check voltage between automatic back door control unit harness connector and ground.
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2418
CLUTCH POWER
SUPPLY CIRCUIT
When the automatic power back door control unit
detects any of the following conditions just after the
open/close operation
• Clutch power supply circuit is shorted.
• Clutch is shorted.
• Clutch
• Harness or connectors
(Clutch circuit is shorted)
• Automatic back door control unit
Automatic back door control unit
Automatic back door unit
Continuity
Connector
Terminal
Connector
Terminal
B7
33
B76
3
Existed
Automatic back door control unit
Ground
Continuity
Connector
Terminal
B7
33
Not existed
Revision: 2008 October
2009 Murano
B2418 CLUTCH POWER SUPPLY CIRCUIT
DLK-81
< COMPONENT 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
>> Check intermittent incident. Refer to
GI-40, "Intermittent Incident"
.
NO
>> Replace automatic back door unit. Refer to
DLK-379, "Removal and Installation"
(+)
(–)
Condition
Voltage (V)
(Approx.)
Automatic back door control unit
Connector
Terminal
B7
33
Ground
Automatic back
door
Active
Other than
above
0
JMKIA1866ZZ
Revision: 2008 October
2009 Murano
DLK-82
< COMPONENT DIAGNOSIS >
[WITH INTELLIGENT KEY SYSTEM]
B2419 OPEN SWITCH
B2419 OPEN SWITCH
Description
INFOID:0000000003430097
The open switch is integrated in the door lock assembly, and it detects the open condition of the back door
lock.
DTC Logic
INFOID:0000000003430098
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-III.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003625825
1.
CHECK OPEN SWITCH SIGNAL
Check open switch (“OPEN 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?
DTC No.
Trouble diagnosis
name
DTC detecting condition
Possible cause
B2419
OPEN SWITCH
When the automatic power back door control unit
detects any of the following conditions
• The change of open switch cannot be detected
for 1 second or more after starting the closure
open output for the 3rd time in a row
• The change of open switch cannot be detected
for 0.5 second or more after starting the closure
close output for the 3rd time in a row
• The condition that the open switch is in the ON
position and the close switch is in the OFF posi-
tion is detected when starting the closure open/
close output for the 3rd time in a row
• Open switch
• Harness or connectors
(Open switch circuit is open or
shorted)
• Automatic back door control unit
Monitor item
Condition
Status
OPEN SW
Back door lock
Fully closed/Half latch
OFF
Open
ON
(+)
(–)
Voltage (V)
(Approx.)
Back door lock assembly
Connector
Terminal
D179
4
Ground
Battery voltage
Revision: 2008 October
2009 Murano
B2419 OPEN SWITCH
DLK-83
< COMPONENT 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-379, "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-83, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace back door lock assembly. Refer to
DLK-361, "DOOR LOCK : Removal and Installation"
6.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000003625826
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
Revision: 2008 October
2009 Murano
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