Infiniti FX35, FX50 (S51). Manual - part 14

 

  Index      Infiniti     Infiniti FX35, FX50 (S51) - service repair manual 2010 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  12  13  14  15   ..

 

 

Infiniti FX35, FX50 (S51). Manual - part 14

 

 

ADP-48

< DTC/CIRCUIT DIAGNOSIS >

B2113 RECLINING MOTOR

B2113 RECLINING MOTOR

Description

INFOID:0000000005249660

• The seat reclining motor is installed to the seatback frame.
• The seat reclining motor is activated with the driver seat control unit.
• Tilts the seatback forward/backward by changing the rotation direction of reclining motor.

DTC Logic

INFOID:0000000005249661

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

REFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

Is the DTC detected? 

YES

>> Perform diagnosis procedure. Refer to 

ADP-48, "Diagnosis Procedure"

.

NO

>> INSPECTION END

NOTE:
First perform diagnosis for B2126 if B2126 is detected.

Diagnosis Procedure

INFOID:0000000005249662

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

3.

Erase the DTC.

4.

Perform DTC confirmation procedure. Refer to 

ADP-48, "DTC Logic"

.

Is the DTC displayed again?

YES

>> GO TO 2.

NO

>> Check intermittent incident. Refer to 

GI-36, "Intermittent Incident"

.

2.

CHECK RECLINING MOTOR CIRCUIT (POWER SHORT)

1.

Turn ignition switch OFF.

2.

Disconnect reclining motor and driver seat control unit connector.

3.

Check voltage between reclining motor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL

1.

Connect driver seat control unit connector.

2.

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

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2113

SEAT RECLINING

The driver seat control unit detects the output of re-
clining motor output terminal for 0.1 second or more 
even if the reclining switch is not input.

• Driver seat control unit
• Reclining motor harness is pow-

er shorted

(+)

(–)

Voltage (V)

(Approx.)

Reclining motor

Connector

Terminals

B454

36

Ground

0

44

B2113 RECLINING MOTOR

ADP-49

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace driver seat control unit. Refer to 

ADP-215, "Removal and Installation"

.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

(+)

(–)

Voltage (V)

(Approx.)

Driver seat control unit

Connector

Terminals

B451

36

Ground

0

44

ADP-50

< DTC/CIRCUIT DIAGNOSIS >

B2118 TILT SENSOR

B2118 TILT SENSOR

Description

INFOID:0000000005249663

• The tilt sensor is installed to the steering column assembly.
• The resistance of tilt sensor is changed according to the up/down position of steering column.
• The terminal voltage of automatic drive positioner control unit will be changed according to a change of tilt

sensor resistance. Automatic drive positioner control unit calculates the tilt position from the voltage.

DTC Logic

INFOID:0000000005249664

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

RERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III.

Is the DTC detected? 

YES

>> Perform diagnosis procedure. Refer to 

ADP-50, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005249665

1.

CHECK TILT SENSOR SIGNAL

1.

Turn ignition switch ON.

2.

Select “TILT SEN” in “Data monitor” mode with CONSULT-III. 

3.

Check tilt sensor signal under the following condition. 

Is the value normal?

YES

>> GO TO 6.

NO

>> GO TO 2.

2.

CHECK TILT SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect automatic drive positioner control unit and tilt & telescopic sensor connector.

3.

Check continuity between automatic drive positioner control unit harness connector and tilt & telescopic
sensor harness connector.

4.

Check continuity between automatic drive positioner control unit harness connector and ground.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2118

TILT SENSOR

The input voltage of tilt sensor is less then 0.1Vor 
more than 4.9V.

• Harness and connectors

(Tilt sensor circuit is opened/
shorted, tilt sensor power supply 
circuit is opened/shorted.)

• Tilt sensor

Monitor item

Condition

Value

TILT SEN

Tilt position

Change between 

1.2 [V] (close to top)

3.4 [V] (close to bottom)

Automatic drive positioner control unit

Tilt & telescopic sensor

Continuity

Connector

Terminal

Connector

Terminal

M51

7

M48

3

Existed

B2118 TILT SENSOR

ADP-51

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

K

L

M

A

B

ADP

N

O

P

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK TILT SENSOR POWER SUPPLY

1.

Connect automatic drive positioner control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between tilt & telescopic sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK TILT SENSOR POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect automatic drive positioner control unit connector.

3.

Check continuity between automatic drive positioner control unit harness connector and tilt & telescopic
sensor harness connector.

4.

Check continuity between automatic drive positioner control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace automatic drive positioner control unit. Refer to

ADP-215, "Removal and Installation"

.

NO

>> Repair or replace harness.

5.

CHECK TILT SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect automatic drive positioner control unit connector.

3.

Check continuity between automatic drive positioner control unit harness connector and tilt & telescopic
sensor harness connector.

Is the inspection result normal?

YES

>> Replace tilt & telescopic sensor.

NO

>> Repair or replace harness.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

Automatic drive positioner control unit

Ground

Continuity 

Connector

Terminal

M51

7

Not existed

(+)

(–)

Voltage (V)

(Approx.)

Tilt & telescopic sensor

Connector

Terminal

M48

1

Ground

5

Automatic drive positioner control unit

Tilt & telescopic sensor

Continuity

Connector

Terminal

Connector

Terminal

M52

33

M48

1

Existed

Automatic drive positioner control unit

Ground

Continuity 

Connector

Terminal

M52

33

Not existed

Automatic drive positioner control unit

Tilt & telescopic sensor

Continuity

Connector

Terminal

Connector

Terminal

M52

41

M48

4

Existed

 

 

 

 

 

 

 

Content   ..  12  13  14  15   ..