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

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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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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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< ECU DIAGNOSIS >

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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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