Nissan Murano. Manual - part 1197

REAR SEATBACK POWER RETURN SYSTEM

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< SYSTEM DESCRIPTION >

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Low Power Consumption Mode

If all of the following conditions are satisfied for 30 seconds period of time, the system shifts to the low power
consumption mode. 
• Power return switch is OFF
• Power return motor does not operate
• Vehicle speed 2 km/h (1 MPH) or less
If any of the following conditions are satisfied, the low power consumption mode is released. 
• When the power return switch is pressed
• When the change occurs to the pulse of vehicle speed sensor
There are the following functions as the low power consumption mode. 
• Turn the power supply of limit switch to OFF
• Turn the power supply of the motor sensor to OFF when the power return motor is not operated

INPUT/OUTPUT SIGNAL CHART

BUZZER OPERATION PATTERN AND ORDER OF PRIORITY

Item

Input signal to rear seatback 

power return control unit 

Rear seatback power return 

function

Actuator

Power return switch

Power return switch signal

Rear seatback power return 
control

Power return motor

Primary position limit switch

Primary position limit switch 
signal

Return complete limit switch

Return complete limit switch 
signal

Motor sensor

Motor sensor signal

Combination meter

Vehicle speed signal

Operation type

Sound pattern

Priority

Malfunction

1

Return operation completed

2

Start return operation

3

JMJIA1396ZZ

JMJIA1395ZZ

JMJIA1394ZZ

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< SYSTEM DESCRIPTION >

REAR SEATBACK POWER RETURN SYSTEM

Component Parts Location

INFOID:0000000009718691

Component Description

INFOID:0000000009718692

1.

Rear seatback power return control 
unit B492, B493

2.

Front power return switch (LH) M114 3.

Front power return switch (RH) M113

4.

Rear power return switch (LH) B106 5.

Primary position limit switch (RH) 
B495

6.

Power return motor assembly (RH) 
B494

7.

Sector gear (RH)

8.

Return complete limit switch (RH) 
B496

9.

Combination meter M34

A.

Back of rear seat (RH)

B.

Luggage side (LH)

C.

In seat device

JMJIA1410ZZ

Item

Function

Rear seatback power return control unit

Control the rear seatback power return system

Power return motor

Operate the rear seatback

Motor sensor

Detect the operation of power return motor

Power return switch

Switch that performs the return operation

Primary position limit switch

Detect the initial position of sector gear

Return complete limit switch

Detect the return position of rear seatback

Combination meter

Transmit the vehicle speed signal

Sector gear

Transmit the operation of power return motor to rear seatback

POWER SUPPLY AND GROUND CIRCUIT

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< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

REAR SEATBACK POWER RETURN CONTROL UNIT

REAR SEATBACK POWER RETURN CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009718693

1.

CHECK FUSE

Check that the following fuses 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 rear seatback power return control unit connector.

3.

Check voltage between rear seatback power return control unit harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between rear seatback power return control unit harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

Terminal No.

Signal name

Fuse No.

16

Battery power supply

32 (30A)

17

6 (10A)

(+)

(

−

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Voltage

(Approx.)

Rear seatback power return control unit

Connector

Terminal

B492

16

Ground

Battery voltage

B493

17

Rear seatback power return control unit

Ground

Continuity

Connector

Terminal

B492

13

Existed

B493

32

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< DTC/CIRCUIT DIAGNOSIS >

FRONT POWER RETURN SWITCH

FRONT POWER RETURN SWITCH

LH

LH : Description

INFOID:0000000009718694

Switch that performs the return operation.

LH : Component Function Check

INFOID:0000000009718695

1.

CHECK FUNCTION

Check that the rear seatback (LH) rises when pressing and holding the front power return switch (LH). 

Is the inspection result normal?

YES

>> Front power return switch (LH) is OK.

NO

>> Refer to

SE-14, "LH : Diagnosis Procedure"

.

LH : Diagnosis Procedure

INFOID:0000000009718696

1.

CHECK REAR SEATBACK POWER RETURN CONTROL UNIT INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front power return switch (LH) connector.

3.

Check voltage between front power return switch (LH) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FRONT POWER RETURN SWITCH (LH) CIRCUIT

1.

Disconnect rear seatback power return control unit connector.

2.

Check continuity between rear seatback power return control unit harness connector and front power
return switch (LH) harness connector. 

3.

Check continuity between rear seatback power return control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace rear seatback return control unit. Refer to 

SE-120, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK FRONT POWER RETURN SWITCH (LH) GROUND CIRCUIT

Check continuity front power return switch (LH) harness connector and ground. 

(+)

(–)

Voltage (V)

(Approx.)

Front power return switch (LH)

Connector

Terminal

M114

1

Ground

5

Rear seatback power return control unit

Front power return switch (LH)

Continuity 

Connector

Terminal

Connector

Terminal

B493

28

M114

1

Existed

Rear seatback power return control unit

Ground

Continuity 

Connector

Terminal

M493

28

Not existed

Front power return switch (LH)

Ground

Continuity 

 Connector

Terminal

M114

2

Existed