Infiniti FX35, FX50 (S51). Manual - part 24

ADP-88

< DTC/CIRCUIT DIAGNOSIS >

SLIDING SENSOR

SLIDING SENSOR

Description

INFOID:0000000005249726

• The sliding sensor is installed to the seat slide cushion frame.
• The pulse signal is inputted to the driver seat control unit when sliding is performed.
• The driver seat control unit counts the pulse and calculates the sliding amount of the seat.

Component Function Check

INFOID:0000000005249727

1.

CHECK FUNCTION

1.

Turn ignition switch ON.

2.

Select “SLIDE PULSE” in “Data monitor” mode with CONSULT-III. 

3.

Check sliding sensor signal under the following conditions.

*1

: The value at the seat position attained when the battery is connected is considered to be 32768.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-88, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005249728

1.

CHECK SLIDING SENSOR SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage signal between driver seat control unit harness connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> Replace driver seat control unit. Refer to 

ADP-215, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK SLIDING SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit and sliding sensor connector.

3.

Check continuity between driver seat control unit harness connector and sliding sensor harness connec-
tor.

Monitor item

Condition

Valve

SLIDE PULSE

Seat sliding

Operate (forward)

Change (increase)

*1

Operate (backward)

Change (decrease)

*1

Release

No change

*1

(+)

(–)

Condition

Voltage (V)

(Approx.)

Driver seat control unit

Connector

Terminal

B451

24

Ground

Seat sliding

Operate

Other than 
above

0 or 5

JMJIA0119ZZ

SLIDING SENSOR

ADP-89

< DTC/CIRCUIT DIAGNOSIS >

C

D

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F

G

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A

B

ADP

N

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4.

Check continuity between driver seat control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK SLIDING SENSOR POWER SUPPLY

1.

Connect driver seat control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between sliding sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK SLIDING SENSOR POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector.

3.

Check continuity between driver seat control unit harness connector and sliding sensor harness connec-
tor.

4.

Check continuity between driver seat control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace driver seat control unit. Refer to 

ADP-215, "Removal and Installation"

.

NO

>> Repair or replace harness.

5.

CHECK SLIDING SENSOR GROUND 

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector.

3.

Check continuity between driver seat control unit harness connector and sliding sensor harness connec-
tor.

Driver seat control unit

Sliding sensor

Continuity

Connector

Terminal

Connector

Terminal

B451

24

B453

24

Existed

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B451

24

Not existed

(+)

(–)

Voltage (V)

(Approx.)

Sliding sensor

Connector

Terminal

B453

16

Ground

5

Driver seat control unit

Sliding sensor

Continuity

Connector

Terminal

Connector

Terminal

B451

16

B453

16

Existed

Driver seat control unit 

Ground

Continuity 

Connector

Terminal

B451

16

Not existed

Driver seat control unit

Sliding sensor

Continuity

Connector

Terminal

Connector

Terminal

B451

31

B453

31

Existed

ADP-90

< DTC/CIRCUIT DIAGNOSIS >

SLIDING SENSOR

Is the inspection result normal?

YES

>> Replace sliding sensor.

NO

>> Repair or replace harness.

RECLINING SENSOR

ADP-91

< DTC/CIRCUIT DIAGNOSIS >

C

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E

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ADP

N

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P

RECLINING SENSOR

Description

INFOID:0000000005249729

• The reclining sensor is installed to the seatback frame.
• The pulse signal is inputted to the driver seat control unit when the reclining is operated.
• The driver seat control unit counts the pulse and calculates the reclining amount of the seat.

Component Function Check

INFOID:0000000005249730

1.

CHECK FUNCTION

1.

Turn ignition switch ON.

2.

Select “RECLN PULSE” in “Data monitor” mode with CONSULT-III.

3.

Check reclining sensor signal under the following conditions.

*1

: The value at the seat position attained when the battery is connected is considered to be 32768.

Is the indication normal?

YES

>> INSPECTION END

NO

>> Perform diagnosis procedure. Refer to 

ADP-91, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005249731

1.

CHECK RECLINING SENSOR SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage signal between driver seat control unit harness connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> Replace driver seat control unit. Refer to 

ADP-215, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK RECLINING SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit and reclining motor connector.

3.

Check continuity between driver seat control unit harness connector and reclining motor harness connec-
tor.

Monitor item

Condition

Value

RECLN PULSE

Seat reclining

Operate (forward)

Change (increase)

*1

Operate (backward)

Change (decrease)

*1

Release

No change

*1

(+)

(–)

Condition

Voltage (V)

(Approx.)

Driver seat control unit

Connector

Terminal

B451

9

Ground

Seat reclining

Operate

Other than 
above

0 or 5

JMJIA0119ZZ