Infiniti QX56 (Z62). Manual - part 24

SLIDING SENSOR

ADP-89

< DTC/CIRCUIT DIAGNOSIS >

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ADP

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SLIDING SENSOR

Component Function Check

INFOID:0000000006248386

1.

CHECK FUNCTION

1.

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

2.

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-89, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006248387

1.

CHECK SLIDING SENSOR SIGNAL

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> Replace driver seat control unit.

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.

4.

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

Monitor item

Condition

Value

SLIDE PULSE

Seat sliding

Operate (forward)

Change (increase)

*1

Operate (backward)

Change (decrease)

*1

Release

No change

*1

(+)

(-)

Condition

Signal

(Reference value)

Driver seat control unit

Connector

Terminals

B452

18

Ground

Seat sliding

Operate

Other than the 
above

0 or 5

JMJIA0119ZZ

Driver seat control unit

Sliding motor

Continuity

Connector

Terminal

Connector

Terminal

B452

18

B461

18

Existed

ADP-90

< DTC/CIRCUIT DIAGNOSIS >

SLIDING SENSOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK SLIDING SENSOR POWER SUPPLY

1.

Connect driver seat control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between sliding motor 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 motor harness connector.

4.

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

Is the inspection result normal?

YES

>> Replace driver seat control unit.

NO

>> Repair or replace harness or connector.

5.

CHECK SLIDING SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between sliding sensor harness connector and ground.

Is the inspection result normal?

YES

>> Replace sliding motor.

NO

>> Repair or replace harness or connector.

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B452

18

Not existed

(+)

(-)

Voltage (V)

(Approx.)

Sliding motor

Connector

Terminals

B461

12

Ground

12

Driver seat control unit

Sliding motor

Continuity

Connector

Terminal

Connector

Terminal

B452

12

B461

12

Existed

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B452

12

Not existed

Sliding motor

Ground

Continuity

Connector

Terminal

B461

43

Existed

RECLINING SENSOR

ADP-91

< DTC/CIRCUIT DIAGNOSIS >

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RECLINING SENSOR

Component Function Check

INFOID:0000000006248388

1.

CHECK FUNCTION

1.

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

2.

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:0000000006248389

1.

CHECK RECLINING SENSOR SIGNAL

1.

Turn ignition switch ON.

2.

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

Is the inspection result normal?

YES

>> Replace driver seat control unit.

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.

4.

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

Monitor item

Condition

Value

RECLN PULSE

Seat reclining

Operate (forward)

Change (increase)

*1

Operate (backward)

Change (decrease)

*1

Release

No change

*1

(+)

(-)

Condition

Signal

(Reference value)

Driver seat control unit 

Connector

Terminals

B452

4

Ground

Seat reclining

Operate

Other than the 
above

0 or 5

JMJIA0119ZZ

Driver seat control unit

Reclining motor

Continuity

Connector

Terminal

Connector

Terminal

B452

4

B454

4

Existed

ADP-92

< DTC/CIRCUIT DIAGNOSIS >

RECLINING SENSOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK RECLINING SENSOR POWER SUPPLY

1.

Connect driver seat control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between reclining motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK RECLINING 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 reclining motor 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.

NO

>> Repair or replace harness or connector.

5.

CHECK RECLINING SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between reclining motor harness connector and ground.

Is the inspection result normal?

YES

>> Replace reclining motor.

NO

>> Repair or replace harness or connector.

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B452

4

Not existed

(+)

(-)

Voltage (V)

(Approx.)

Reclining motor

Connector

Terminals

B454

12

Ground

12

Driver seat control unit

Reclining motor

Continuity

Connector

Terminal

Connector

Terminal

B452

12

B454

12

Existed

Driver seat control unit

Ground

Continuity 

Connector

Terminal

B452

12

Not existed

Reclining motor

Ground

Continuity

Connector

Terminal

B454

43

Existed