Infiniti EX35. Manual - part 1256

RETURN COMPLETE LIMIT SWITCH

SE-31

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

Is the inspection result normal?

YES

>> Return complete limit switch (LH) is OK.

NO

>> Replace return complete limit switch (LH) [rear seatback lock assembly (LH)]. Refer to 

SE-98,

"Exploded View"

. 

RH

RH : Description

INFOID:0000000003642188

Detect the return completion position of rear seatback (RH). 

RH : Component Function Check

INFOID:0000000003642189

1.

CHECK FUNCTION

Check that the rear seatback (RH) rises when pressing and holding the power return switch (RH) or rear seat-
back switch (RH) in UP direction.
Is the inspection result normal?

YES

>> Return complete limit switch (RH) is OK.

NO

>> Refer to 

SE-31, "RH : Diagnosis Procedure"

.

RH : Diagnosis Procedure

INFOID:0000000003642190

1.

CHECK REAR SEATBACK POWER RETURN CONTROL UNIT INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

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

NOTE:
It is not low power consumption mode. 

Is the inspection result normal?

YES

>> Return complete limit switch (RH) is OK.

NO

>> GO TO 2.

2.

CHECK RETURN COMPLETE LIMIT SWITCH (RH) SIGNAL CIRCUIT

1.

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

2.

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

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Rear seatback power return control unit

Connector

Terminal 

B226

30

Ground

When the rear seatback (RH) is in the return 
completion position

Battery voltage

When the rear seatback (RH) is in the fold-
down position

0

Rear seatback power return control unit

Rear seatback lock assembly (RH)

Continuity

Connector

Terminal

Connector

Terminal

B226

30

B506

13

Existed

Rear seatback power return control unit

Ground

Continuity 

Connector

Terminal

B226

30

Not existed

SE-32

< COMPONENT DIAGNOSIS >

RETURN COMPLETE LIMIT SWITCH

NO

>> Repair or replace harness.

3.

CHECK RETURN COMPLETE LIMIT SWITCH (RH) GROUND CIRCUIT

1.

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

2.

Check continuity between rear 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 RETURN COMPLETE LIMIT SWITCH (RH)

Check return complete limit switch (RH).
Refer to 

SE-32, "RH : Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace return complete limit switch (RH) [rear seatback lock assembly (RH)]. Refer to 

SE-98,

"Exploded View"

. 

5.

CHECK REAR SEATBACK POWER RETURN CONTROL UNIT OUTPUT SIGNAL

1.

Connect rear seatback power return control unit connector.

2.

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

NOTE:
It is not low power consumption mode. 
Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace rear seatback power return control unit. Refer to 

SE-105, "Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

RH : Component Inspection

INFOID:0000000003642191

COMPONENT INSPECTION

1.

CHECK RETURN COMPLETE LIMIT SWITCH (RH)

1.

Turn ignition switch OFF.

2.

Disconnect rear seatback lock assembly (RH) connector.

3.

Check rear seatback lock assembly (RH).

Rear seatback power return control unit

Rear seatback lock assembly (RH)

Continuity

Connector

Terminal

Connector

Terminal

B226

23

B506

14

Existed

Rear seatback power return control unit

Ground

Continuity 

Connector

Terminal

B226

23

Not existed

(+)

(–)

Voltage (V)

(Approx.)

Rear seatback power return control unit

Connector

Terminal 

B226

30

Ground

Battery voltage

RETURN COMPLETE LIMIT SWITCH

SE-33

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

Is the inspection result normal?

YES

>> Return complete limit switch (RH) is OK.

NO

>> Replace return complete limit switch (RH) [rear seatback lock assembly (RH)]. Refer to 

SE-98,

"Exploded View"

. 

Rear seatback lock assembly (RH) connector

Terminal

Condition

Continuity

B506

13

14

Return complete limit switch (RH) is pressed

Existed

Return complete limit switch (RH) is released

Not existed

SE-34

< COMPONENT DIAGNOSIS >

MOTOR SENSOR

MOTOR SENSOR

LH

LH : Description

INFOID:0000000003642192

Detect the operation condition of power return motor (LH). 

LH : Component Function Check

INFOID:0000000003642193

1.

CHECK FUNCTION

Check that the rear seatback (LH) rises when pressing and holding the power return switch (LH) or rear seat-
back switch (LH) in UP direction.

Is the inspection result normal?

YES

>> Motor sensor (LH) is OK.

NO

>> Refer to 

SE-34, "LH : Diagnosis Procedure"

.

LH : Diagnosis Procedure

INFOID:0000000003642194

1.

CHECK MOTOR SENSOR (LH) OUTPUT 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

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK MOTOR SENSOR (LH) SIGNAL CIRCUIT

1.

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

2.

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

3.

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

Is the inspection result normal?

(+)

(–)

Condition

Voltage (V)

(Approx.)

Power return motor assembly (LH)

Connector

Terminal 

B511

4

Ground

During the power return motor 
(LH) operation

When pinching between LH/RH 
seats occurs

The above pulse width should be 
expanded

JMKIA0070GB

Rear seatback power return control unit

Power return motor assembly (LH)

Continuity

Connector

Terminal

Connector

Terminal

B227

10

B511

4

Existed

Rear seatback power return control unit

Ground

Continuity

Connector

Terminal

B227

10

Not existed