Nissan Murano. Manual - part 1203

POWER RETURN MOTOR

SE-35

< DTC/CIRCUIT DIAGNOSIS >

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POWER RETURN MOTOR

LH

LH : Description

INFOID:0000000009718732

Operate the rear seatback. 

LH : Component Function Check

INFOID:0000000009718733

1.

CHECK FUNCTION

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

Is the inspection result normal?

YES

>> Power return motor (LH) is OK.

NO

>> Refer to 

SE-35, "LH : Diagnosis Procedure"

.

LH : Diagnosis Procedure

INFOID:0000000009718734

1.

CHECK POWER RETURN MOTOR (LH) INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Check voltage between power return motor assembly (LH) harness connector and ground.

Is the inspection result normal?

YES

>> Replace power return motor assembly (LH) [reclining device assembly (LH)]. Refer to 

SE-107,

"Exploded View"

.

NO

>> GO TO 2.

2.

CHECK POWER RETURN MOTOR (LH) CIRCUIT

1.

Disconnect rear seatback power return control unit connector and power return motor assembly (LH) con-
nector.

2.

Check continuity between rear seatback power return control unit harness connector and power return
motor assembly (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 power return control unit. Refer to 

SE-120, "Removal and Installation"

.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Power return motor assembly (LH)

Connector

Terminal

B498

1

Ground

During the power return motor (LH) return op-
eration

Battery voltage

Other than the above

0

5

During the power return motor (LH) reverse 
operation

Battery voltage

Other than the above

0

Rear seatback power return control unit 

Power return motor assembly (LH)

Continuity 

Connector

Terminal

Connector

Terminal

B492

5

B498

5

Existed

6

1

Rear seatback power return control unit 

Ground

Continuity

Connector

Terminal

B492

5

Not existed

6

SE-36

< DTC/CIRCUIT DIAGNOSIS >

POWER RETURN MOTOR

NO

>> Repair or replace harness.

RH

RH : Description

INFOID:0000000009718735

Operate the rear seatback. 

RH : Component Function Check

INFOID:0000000009718736

1.

CHECK FUNCTION

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

Is the inspection result normal?

YES

>> Power return motor (RH) is OK.

NO

>> Refer to 

SE-36, "RH : Diagnosis Procedure"

.

RH : Diagnosis Procedure

INFOID:0000000009718737

1.

CHECK POWER RETURN MOTOR (RH) INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Check voltage between power return motor assembly (RH) harness connector and ground.

Is the inspection result normal?

YES

>> Replace power return motor assembly (RH) [reclining device assembly (RH)]. Refer to 

SE-107,

"Exploded View"

.

NO

>> GO TO 2.

2.

CHECK POWER RETURN MOTOR (RH) CIRCUIT

1.

Disconnect rear seatback power return control unit connector and power return motor assembly (RH) con-
nector.

2.

Check continuity between rear seatback power return control unit harness connector and power return
motor assembly (RH) 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 power return control unit. Refer to 

SE-120, "Removal and Installation"

.

NO

>> Repair or replace harness.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Power return motor assembly (RH)

Connector

Terminal

B494

1

Ground

During the power return motor (RH) return op-
eration

Battery voltage

Other than the above

0

5

During the power return motor (RH) reverse 
operation

Battery voltage

Other than the above

0

Rear seatback power return control unit 

Power return motor assembly (RH)

Continuity 

Connector

Terminal

Connector

Terminal

B492

7

B494

5

Existed

8

1

Rear seatback power return control unit 

Ground

Continuity

Connector

Terminal

B492

7

Not existed

8

VEHICLE SPEED SIGNAL CIRCUIT

SE-37

< DTC/CIRCUIT DIAGNOSIS >

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VEHICLE SPEED SIGNAL CIRCUIT

Description

INFOID:0000000009718738

Transmits vehicle speed signal to rear seatback power return control unit.

Component Function Check

INFOID:0000000009718739

1.

CHECK FUNCTION

Check that the rear seatback rises when pressing and holding the power return switch. 

Is the inspection result normal?

YES

>> Vehicle speed signal circuit is OK.

NO

>> Refer to 

SE-37, "Diagnosis Procedure"

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Diagnosis Procedure

INFOID:0000000009718740

1.

CHECK VEHICLE SPEED OPERATION

1.

Check speed meter operate normally.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Refer to

MWI-4, "Work flow"

.

2.

CHECK VEHICLE SPEED INPUT SIGNAL

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Refer to

MWI-4, "Work flow"

.

3.

CHECK VEHICLE SPEED SIGNAL CIRCUIT

1.

Disconnect rear seatback power return control unit connector and combination meter connector.

2.

Check continuity between power return control unit harness connector and combination meter harness
connector.

3.

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

(+)

(–)

Condition

Voltage (V)

(Approx.)

Rear seatback power return control unit

Connector

Terminal 

B493

24

Ground

When vehicle speed is ap-
prox.40 km/h (25MPH)

NOTE:
Maximum voltage may be 12V due 
to specifications (connected units)

SKIA6649J

Rear seatback power return control unit

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

B493

24

M34

31

Existed

Rear seatback power return control unit

Ground

Continuity 

Connector

Terminal

B493

24

Not existed

SE-38

< DTC/CIRCUIT DIAGNOSIS >

VEHICLE SPEED SIGNAL CIRCUIT

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

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>> INSPECTION END