Nissan Quest E52. Manual - part 1055

THIRD SEAT FOLD SWITCH

SE-49

< DTC/CIRCUIT DIAGNOSIS >

C

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THIRD SEAT FOLD SWITCH

LH

LH : Component Function Check

INFOID:0000000009652949

1.

CHECK FUNCTION

Check that the third seat fold switch (LH) operation. 

Is the inspection result normal?

YES

>> INSUPECTION END

NO

>> Refer to 

SE-49, "LH : Diagnosis Procedure"

.

LH : Diagnosis Procedure

INFOID:0000000009652950

1.

CHECK THIRD SEAT FOLD SWITCH (LH) GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect third seat fold switch (LH) connector.

3.

Check continuity between third seat fold switch (LH) harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness.

2.

CHECK THIRD SEAT FOLD SWITCH (LH) RETURN SIGNAL

Check voltage between third seat fold switch (LH) harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK THIRD SEAT FOLD SWITCH (LH) CIRCUIT 1

1.

Disconnect seatback power return control unit connector.

2.

Check continuity between seatback power return control unit harness connector and third seat fold switch
(LH) harness connector. 

3.

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

Is the inspection result normal?

YES

>> Replace rear power return control unit. Refer to 

SE-139, "Removal and Installation"

.

NO

>> Repair or replace harness.

Third seat fold switch (LH)

Ground

Continuity 

 Connector

Terminal

B83

3

Existed

(+)

(–)

Voltage (V)

Third seat fold switch (LH)

Connector

Terminal

B83

2

Ground

4.7 – 5.3

Seatback power return control unit

Third seat fold switch (LH)

Continuity 

Connector

Terminal

Connector

Terminal

B488

28

B83

2

Existed

Seatback power return control unit

Ground

Continuity 

Connector

Terminal

B488

28

Not existed

SE-50

< DTC/CIRCUIT DIAGNOSIS >

THIRD SEAT FOLD SWITCH

4.

CHECK THIRD SEAT FOLD SWITCH (LH) FOLD SIGNAL

Check voltage between third seat fold switch (LH) harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 5.

5.

CHECK THIRD SEAT FOLD SWITCH (LH) CIRCUIT 2

1.

Disconnect seatback lock release actuator relay (LH) connector.

2.

Check continuity between seatback lock release actuator relay (LH) harness connector and third seat fold
switch (LH) harness connector. 

3.

Check continuity between third seat fold switch (LH) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK THIRD SEAT FOLD SWITCH (LH) CIRCUIT 3

Check voltage between seatback lock release actuator relay (LH) harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 7.

7.

CHECK FUSE

Check 10 A fuse [#9, located fuse block (J/B)]. 

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Replace the blown fuse after repairing affected circuit.

8.

CHECK SEATBACK LOCK RELEASE ACTUATOR RELAY (LH)

Check seatback lock release actuator relay (LH). 
Refer to 

SE-53, "Component Inspection (Seatback Lock Release Actuator Relay)"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Replace seatback lock release actuator relay (LH).

9.

CHECK THIRD SEAT FOLD SWITCH (LH)

(+)

(–)

Voltage (V)

Third seat fold switch (LH)

Connector

Terminal

B83

1

Ground

9 – 16

Seatback lock release actuator relay (LH)

Third seat fold switch (LH)

Continuity 

Connector

Terminal

Connector

Terminal

B503

2

B83

1

Existed

Third seat fold switch (LH)

Ground

Continuity 

Connector

Terminal

B83

1

Not existed

(+)

(–)

Voltage (V)

Seatback lock release actuator relay (LH)

Connector

Terminal

B503

1

Ground

9 – 16

THIRD SEAT FOLD SWITCH

SE-51

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

Check third seat fold switch (LH). 
Refer to 

SE-53, "Component Inspection (Third Seat Fold Switch)"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Replace third seat fold switch (LH). Refer to 

SE-136, "Removal and Installation"

.

10.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

RH

RH : Component Function Check

INFOID:0000000009652951

1.

CHECK FUNCTION

Check that the third seat fold switch (RH) operation. 

Is the inspection result normal?

YES

>> INSUPECTION END

NO

>> Refer to 

SE-51, "RH : Diagnosis Procedure"

.

RH : Diagnosis Procedure

INFOID:0000000009652952

1.

CHECK THIRD SEAT FOLD SWITCH (RH) GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect third seat fold switch (RH) connector.

3.

Check continuity between third seat fold switch (RH) harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness.

2.

CHECK THIRD SEAT FOLD SWITCH (RH) RETURN SIGNAL

Check voltage between third seat fold switch (RH) harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK THIRD SEAT FOLD SWITCH (RH) CIRCUIT 1

1.

Disconnect seatback power return control unit connector.

2.

Check continuity between seatback power return control unit harness connector and third seat fold switch
(RH) harness connector. 

3.

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

Third seat fold switch (RH)

Ground

Continuity 

 Connector

Terminal

B234

3

Existed

(+)

(–)

Voltage (V)

Third seat fold switch (RH)

Connector

Terminal

B234

2

Ground

4.7 – 5.3

Seatback power return control unit

Third seat fold switch (RH)

Continuity 

Connector

Terminal

Connector

Terminal

B488

20

B234

2

Existed

SE-52

< DTC/CIRCUIT DIAGNOSIS >

THIRD SEAT FOLD SWITCH

Is the inspection result normal?

YES

>> Replace rear power return control unit. Refer to 

SE-139, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK THIRD SEAT FOLD SWITCH (RH) FOLD SIGNAL

Check voltage between third seat fold switch (RH) harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> GO TO 5.

5.

CHECK THIRD SEAT FOLD SWITCH (RH) CIRCUIT 2

1.

Disconnect seatback lock release actuator relay (RH) connector.

2.

Check continuity between seatback lock release actuator relay (RH) harness connector and third seat fold
switch (RH) harness connector. 

3.

Check continuity between third seat fold switch (RH) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK THIRD SEAT FOLD SWITCH (RH) CIRCUIT 3

Check voltage between seatback lock release actuator relay (RH) harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 7.

7.

CHECK FUSE

Check 10 A fuse [#9, located fuse block (J/B)]. 

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> Replace the blown fuse after repairing affected circuit.

Seatback power return control unit

Ground

Continuity 

Connector

Terminal

B488

20

Not existed

(+)

(–)

Voltage (V)

Third seat fold switch (RH)

Connector

Terminal

B234

1

Ground

9 – 16

Seatback lock release actuator relay (RH)

Third seat fold switch (RH)

Continuity 

Connector

Terminal

Connector

Terminal

B501

2

B234

1

Existed

Third seat fold switch (RH)

Ground

Continuity 

Connector

Terminal

B234

1

Not existed

(+)

(–)

Voltage (V)

Seatback lock release actuator relay (RH)

Connector

Terminal

B501

1

Ground

9 – 16