Nissan Quest E52. Manual - part 1058

SEATBACK LOCK RELEASE ACTUATOR

SE-61

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

Component Inspection (Seatback Lock Release Actuator Relay)

INFOID:0000000009652961

1.

CHECK SEATBACK LOCK ACCTUATOR RELAY

1.

Turn ignition switch OFF.

2.

Remove seatback lock actuator relay.

3.

Check seatback lock actuator relay terminals under the following
conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace seatback lock actuator relay.

Terminal

Condition

Continuity

3

5

12 V direct current supply between ter-
minals 1 and 2.

Existed

Not current supply

Not existed

PBIB0098E

SE-62

< DTC/CIRCUIT DIAGNOSIS >

SECTOR GEAR POSITION LIMIT SWITCH

SECTOR GEAR POSITION LIMIT SWITCH

LH

LH : Diagnosis Procedure

INFOID:0000000009652962

1.

CHECK SECTOR GEAR POSITION LIMIT SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect sector gear position limit switch (LH) connector.

3.

Check voltage between sector gear position limit switch (LH) connector and ground.

NOTE:
It is not low electric power consumption mode. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK SECTOR GEAR POSITION LIMIT SWITCH (LH) SIGNAL CIRCUIT

1.

Disconnect seatback power return control unit connector.

2.

Check continuity between seatback power return control unit harness connector and sector gear position
limit switch (LH) harness connector.

3.

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

Is the inspection result normal?

YES

>> Replace seatback power return control unit. Refer to 

SE-139, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK SECTOR GEAR POSITION LIMIT SWITCH (LH) GROUND CIRCUIT

1.

Disconnect seatback power return control unit connector and seatback angle limit switch (LH) connector.

2.

Check continuity between seatback power return control unit harness connector and sector gear position
limit switch (LH) harness connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 4.

(+)

(–)

Voltage (V)

Sector gear position limit switch (LH)

Connector

Terminal 

B499

1

Ground

9 – 16

Seatback power return control unit

Sector gear position limit switch (LH)

Continuity

Connector

Terminal

Connector

Terminal

B488

21

B499

1

Existed

Seatback power return control unit

Ground

Continuity 

Connector

Terminal

B488

21

Not existed

Seatback power return control unit

Sector gear position limit switch (LH)

Continuity

Connector

Terminal

Connector

Terminal

B488

31

B499

2

Existed

Seatback power return control unit

Ground

Continuity 

Connector

Terminal

B488

31

Not existed

SECTOR GEAR POSITION LIMIT SWITCH

SE-63

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

NO

>> Repair or replace harness.

4.

CHECK SECTOR GEAR POSITION LIMIT SWITCH (LH)

Check sector gear position limit switch (LH). 
Refer to 

SE-64, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace sector gear position limit switch (LH) [reclining device assembly (LH)]. Refer to 

SE-122,

"Exploded View"

. 

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

RH

RH : Diagnosis Procedure

INFOID:0000000009652963

1.

CHECK SECTOR GEAR POSITION LIMIT SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect sector gear position limit switch (RH) connector.

3.

Check voltage between sector gear position limit switch (RH) connector and ground.

NOTE:
It is not low electric power consumption mode. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK SECTOR GEAR POSITION LIMIT SWITCH (RH) SIGNAL CIRCUIT

1.

Disconnect seatback power return control unit connector.

2.

Check continuity between seatback power return control unit harness connector and sector gear position
limit switch (RH) harness connector.

3.

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

Is the inspection result normal?

YES

>> Replace seatback power return control unit. Refer to 

SE-139, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK SECTOR GEAR POSITION LIMIT SWITCH (RH) GROUND CIRCUIT

1.

Disconnect seatback power return control unit connector and seatback angle limit switch (RH) connector.

2.

Check continuity between seatback power return control unit harness connector and sector gear position
limit switch (RH) harness connector.

(+)

(–)

Voltage (V)

Sector gear position limit switch (RH)

Connector

Terminal 

B495

1

Ground

9 – 16

Seatback power return control unit

Sector gear position limit switch (RH)

Continuity

Connector

Terminal

Connector

Terminal

B488

22

B495

1

Existed

Seatback power return control unit

Ground

Continuity 

Connector

Terminal

B488

22

Not existed

SE-64

< DTC/CIRCUIT DIAGNOSIS >

SECTOR GEAR POSITION LIMIT SWITCH

3.

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

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK SECTOR GEAR POSITION LIMIT SWITCH (RH)

Check sector gear position limit switch (RH). 
Refer to 

SE-64, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace sector gear position limit switch (RH) [reclining device assembly (RH)]. Refer to 

SE-122,

"Exploded View"

. 

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009652964

COMPONENT INSPECTION

1.

CHECK SECTOR GEAR POSITION LIMIT SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect sector gear position limit switch connector.

3.

Check sector gear position limit switch terminals under the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace sector gear limit switch (reclining device assembly). Refer to 

SE-122, "Exploded View"

. 

Seatback power return control unit

Sector gear position limit switch (RH)

Continuity

Connector

Terminal

Connector

Terminal

B488

23

B495

2

Existed

Seatback power return control unit

Ground

Continuity 

Connector

Terminal

B488

23

Not existed

Terminal

Condition

Continuity

1

2

Sector gear position limit switch

While being pressed

Existed

Other than the above

Not existed