Infiniti EX35. Manual - part 1253

POWER RETURN SWITCH

SE-19

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

1.

Connect rear seatback power return control unit connector.

2.

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

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:0000000003642167

1.

CHECK POWER RETURN SWITCH (RH)

1.

Turn ignition OFF.

2.

Disconnect power return switch (RH) connector.

3.

Check power return switch (RH) connector.

Is the inspection result normal?

YES

>> Power return switch (RH) is OK.

NO

>> Replace power return switch (RH). Refer to 

SE-109, "Removal and Installation"

.

(+)

(–)

Voltage (V)

(Approx.)

Rear seatback power return control unit

Connector

Terminal

B226

20

Ground

5

Power return switch (RH) connector 

Terminal

Condition

Continuity

M175

1

2

Power return switch (RH) is pressed

Existed

Power return switch (RH) is released

Not existed

SE-20

< COMPONENT DIAGNOSIS >

REAR SEATBACK SWITCH

REAR SEATBACK SWITCH

LH

LH : Description

INFOID:0000000003642168

Switch that performs the return operation or release operation.

LH : Component Function Check

INFOID:0000000003642169

1.

CHECK FUNCTION

Check that the rear seatback (LH) rises when pressing and holding the rear seatback switch (LH) in UP direc-
tion. 

Is the inspection result normal?

YES

>> Rear seatback switch (LH) is OK.

NO

>> Refer to 

SE-20, "LH : Diagnosis Procedure"

.

LH : Diagnosis Procedure

INFOID:0000000003642170

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.

Is the inspection result normal?

YES

>> Rear seatback switch (LH) is OK.

NO

>> GO TO 2.

2.

CHECK REAR SEAT BACK SWITCH (LH) CIRCUIT

1.

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

2.

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

NO

>> Repair or replace harness.

3.

CHECK REAR SEATBACK SWITCH (LH) GROUND CIRCUIT

Check continuity rear seatback switch (LH) harness connector and ground. 

(+)

(–)

Condition

Voltage (V)

(Approx.)

Rear seatback power return control unit

Connector

Terminal

B226

28

Ground

Rear seatback switch (LH) is pressed in UP 
direction

0

Rear seatback switch (LH) is released in UP 
direction

5

Rear seatback power return control unit

Rear seatback switch (LH)

Continuity 

Connector

Terminal

Connector

Terminal

B226

28

B52

2

Existed

Rear seatback power return control unit

Ground

Continuity 

Connector

Terminal

B226

28

Not existed

REAR SEATBACK SWITCH

SE-21

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

SE

N

O

P

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK REAR SEATBACK SWITCH (LH)

Check rear seatback switch (LH). 
Refer to

SE-21, "LH : Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace rear seatback switch (LH). Refer to 

SE-111, "Removal and Installation"

.

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.

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

LH : Component Inspection

INFOID:0000000003642171

1.

CHECK REAR SEATBACK SWITCH (LH)

1.

Turn ignition switch OFF.

2.

Disconnect rear seatback switch (LH) connector.

3.

Check rear seatback switch (LH) connector.

Is the inspection result normal?

YES

>> Rear seatback switch (LH) is OK.

NO

>> Replace seatback return switch (LH). Refer to 

SE-111, "Removal and Installation"

.

RH

RH : Description

INFOID:0000000003642172

Switch that performs the return operation or release operation.

Rear seatback switch (LH)

Ground

Continuity 

 Connector

Terminal

B52

3

Existed

(+)

(–)

Voltage (V)

(Approx.)

Rear seatback power return control unit

Connector

Terminal

B226

28

Ground

5

Rear seatback switch (LH) connector 

Terminal

Condition

Continuity

B52

2

3

Rear seatback switch (LH) is pressed in UP 
direction

Existed

Rear seatback switch (LH) is released in 
UP direction

Not existed

SE-22

< COMPONENT DIAGNOSIS >

REAR SEATBACK SWITCH

RH : Component Function Check

INFOID:0000000003642173

1.

CHECK FUNCTION

Check that the rear seatback (RH) rises when pressing and holding the rear seatback switch (RH) in UP direc-
tion.

Is the inspection result normal?

YES

>> Rear seatback switch (RH) is OK.

NO

>> Refer to

SE-22, "RH : Diagnosis Procedure"

.

RH : Diagnosis Procedure

INFOID:0000000003642174

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.

Is the inspection result normal?

YES

>> Rear seatback switch (RH) is OK.

NO

>> GO TO 2.

2.

CHECK REAR SEATBACK SWITCH (RH) CIRCUIT

1.

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

2.

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

NO

>> Repair or replace harness.

3.

CHECK REAR SEATBACK SWITCH (RH) GROUND CIRCUIT

Check continuity rear seatback switch (RH) harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Rear seatback power return control unit

Connector

Terminal

B226

20

Ground

Rear seatback switch (RH) is pressed in UP 
direction

0

Rear seatback switch (RH) is released in UP 
direction

5

Rear seatback power return control unit

Rear seatback switch (RH)

Continuity 

Connector

Terminal

Connector

Terminal

B226

20

B239

2

Existed

Rear seatback power return control unit

Ground

Continuity 

Connector

Terminal

B226

20

Not existed

Rear seatback switch (RH)

Ground

Continuity 

 Connector

Terminal

B239

3

Existed