Nissan Murano Z51 (2008 year). Manual — part 314
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LUMBAR SUPPORT
JCJWM0687GB
Revision: 2008 October
2009 Murano
LUMBAR SUPPORT
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JCJWM0688GB
Revision: 2008 October
2009 Murano
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REAR SEATBACK POWER RETURN CONTROL UNIT
ECU DIAGNOSIS
REAR SEATBACK POWER RETURN CONTROL UNIT
Reference Value
INFOID:0000000003396957
TERMINAL LAYOUT
PHYSICAL VALUES
Rear seat back power return control unit
A.
B492
B.
B493
JMJIA1682ZZ
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
1
Ground
B/W
Ground (Motor sensor
RH)
—
—
0
2
Ground
G/W
Motor sensor (RH) in-
put signal
Input
When the power return motor
(RH) is operated
When the pinch occurs
The above pulse width should be
expanded
3
Ground
Y/R
Motor sensor (RH)
Power supply
Input
When the power return motor
is operated
Battery voltage
5
Ground
R/B
Power return motor
(LH) backward signal
Output
When the power return motor
(LH) performs reverse opera-
tion
Battery voltage
Other than the above
0
6
Ground
L
Power return motor
(LH) forward signal
Output
When the power return motor
(LH) performs return opera-
tion
Battery voltage
Other than the above
0
7
Ground
R/W
Power return motor
(RH) backward signal
Output
When the power return motor
(RH) performs reverse opera-
tion
Battery voltage
Other than the above
0
8
Ground
L/W
Power return motor
(RH) forward signal
Output
When the power return motor
(RH) performs return opera-
tion
Battery voltage
Other than the above
0
JMKIA0070GB
Revision: 2008 October
2009 Murano
REAR SEATBACK POWER RETURN CONTROL UNIT
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9
Ground
B/Y
Ground (Motor sensor
LH)
—
—
0
10
Ground
G
Motor sensor (LH) in-
put signal
Input
When the power return motor
(LH) is operated
When the pinch occurs
The above pulse width should be
expanded
11
Ground
Y
Motor sensor (LH)
Power supply
Input
When the power return motor
is operated
Battery voltage
13
Ground
B
Ground (power)
—
—
0
16
Ground
R
Battery power supply
(power)
Input
—
Battery voltage
17
Ground
R
Battery power supply
(system)
Input
—
Battery voltage
20
Ground
LG
Power return switch
(RH) input signal
Input
When pressing the power re-
turn switch (RH)
0
Other than the above
5
21
Ground
W
Primary position limit
switch (LH) input sig-
nal
Input
When the sector gear (LH) is
in the initial position (other
than low power consumption
mode)
Battery voltage
Other than the above
0
22
Ground
W/R
Primary position limit
switch (RH) input sig-
nal
Input
When the sector gear (RH) is
in the initial position (other
than low power consumption
mode)
Battery voltage
Other than the above
0
23
Ground
BR/W
Ground (limit switch
RH)
—
—
0
24
Ground
LG
Vehicle speed signal
(8-pulse)
Input
When vehicle speed is ap-
prox.40 km/h (25MPH)
NOTE:
Maximum voltage may be 12 V
due to specifications (connected
units)
28
Ground
LG/Y
Power return switch
(LH) input signal
Input
When pressing the power re-
turn switch (LH)
0
Other than the above
5
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
JMKIA0070GB
SKIA6649J
Revision: 2008 October
2009 Murano
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< ECU DIAGNOSIS >
REAR SEATBACK POWER RETURN CONTROL UNIT
Wiring Diagram - REAR SEATBACK POWER RETURN SYSTEM -
INFOID:0000000003396958
NOTE:
29
Ground
L
Return complete limit
switch (LH) input sig-
nal
Input
When the rear seatback (LH)
is in the return completion po-
sition (other than low power
consumption mode)
Battery voltage
Other than the above
0
30
Ground
L/W
Return complete limit
switch (RH) input sig-
nal
Input
When the rear seatback (RH)
is in the return completion po-
sition (other than low power
consumption mode)
Battery voltage
Other than the above
0
31
Ground
BR
Ground (limit switch
LH)
—
—
0
32
Ground
B
Ground (system)
—
—
0
Terminal No.
Wire
color
Description
Condition
Value
(Approx.)
+
–
Signal name
Input/
Output
Revision: 2008 October
2009 Murano
REAR SEATBACK POWER RETURN CONTROL UNIT
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• Type A UP to VIN: JN8AZ18U*9W100000, JN8AZ18W*9W200000 (EXCEPT FOR MEXICO),
JN8AZ18U*9W710000, JN8AZ18W*9W810000 (FOR MEXICO)
JCJWM0691GB
Revision: 2008 October
2009 Murano
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REAR SEATBACK POWER RETURN CONTROL UNIT
JCJWM0692GB
Revision: 2008 October
2009 Murano
REAR SEATBACK POWER RETURN CONTROL UNIT
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JCJWM0693GB
Revision: 2008 October
2009 Murano
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REAR SEATBACK POWER RETURN CONTROL UNIT
JCJWM0694GB
Revision: 2008 October
2009 Murano
REAR SEATBACK POWER RETURN CONTROL UNIT
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Wiring Diagram - REAR SEATBACK POWER RETURN SYSTEM -
INFOID:0000000004747833
NOTE:
JCJWM0695GB
Revision: 2008 October
2009 Murano
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< ECU DIAGNOSIS >
REAR SEATBACK POWER RETURN CONTROL UNIT
• Type B From VIN: JN8AZ18U*9W100001, JN8AZ18W*9W200001 (EXCEPT FOR MEXICO),
JN8AZ18U*9W710001, JN8AZ18W*9W810001 (FOR MEXICO)
JCJWM0696GB
Revision: 2008 October
2009 Murano
REAR SEATBACK POWER RETURN CONTROL UNIT
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JCJWM0697GB
Revision: 2008 October
2009 Murano
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< ECU DIAGNOSIS >
REAR SEATBACK POWER RETURN CONTROL UNIT
JCJWM0698GB
Revision: 2008 October
2009 Murano
REAR SEATBACK POWER RETURN CONTROL UNIT
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JCJWM0699GB
Revision: 2008 October
2009 Murano
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REAR SEATBACK POWER RETURN CONTROL UNIT
Fail Safe
INFOID:0000000003396959
Even if the automatic return control is inactivated, the fold-down and manual return operations can be per-
formed
JCJWM0700GB
Revision: 2008 October
2009 Murano
REAR SEATBACK POWER RETURN CONTROL UNIT
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Possible location of malfunction
Diagnosis mode
Corrective action
Return complete limit switch “ON” mal-
function
The return completion position cannot be de-
tected
Detect the lock with the rear seatback
power return control unit, and then re-
verse the power return motor
Return complete limit switch “OFF” mal-
function
The automatic return cannot be performed
because the return completion position is
misrecognized
The manual return operation can be per-
formed
Primary position limit switch “ON” mal-
function
The initial position of the sector gear cannot
be detected
Detect the lock with the rear seatback
power return control unit, and then stop
the power return motor
* If the above condition is repeated for 4
times, stop the subsequent automatic re-
turn operation. However, the manual re-
turn operation can be performed
Primary position limit switch “OFF” mal-
function
The initial position of the sector gear is mis-
recognized
(The sector gear reverse operation cannot be
performed)
• Return the sector gear to the initial po-
sition if the primary position limit switch
is not turned to ON after starting the re-
turn (Lock detection)
• The manual return operation can be
performed
Sensor malfunction (fixed to High or
Low)
The motor lock is misrecognized because the
pulse does not change
• If the pulse does not change complete-
ly after starting the motor operation, re-
turn the sector gear to the initial
position
• The manual return operation can be
performed
Revision: 2008 October
2009 Murano
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