Infiniti FX35, FX50 (S51). Manual - part 15

ADP-52

< DTC/CIRCUIT DIAGNOSIS >

B2118 TILT SENSOR

>> INSPECTION END

B2119 TELESCOPIC SENSOR

ADP-53

< DTC/CIRCUIT DIAGNOSIS >

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B2119 TELESCOPIC SENSOR

Description

INFOID:0000000005249666

• The telescopic sensor is installed to the steering column assembly.
• The resistance of telescopic sensor is changed according to the forward/backward position of steering col-

umn.

• The terminal voltage of automatic drive positioner control unit will be changed according to a change of tele-

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

DTC Logic

INFOID:0000000005249667

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 is detected? 

YES

>> Perform diagnosis procedure. Refer to 

ADP-53, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005249668

1.

CHECK TELESCOPIC SENSOR SIGNAL

1.

Turn ignition switch ON.

2.

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

3.

Check the tilt sensor signal under the following condition. 

Is the valve normal?

YES

>> GO TO 6.

NO

>> GO TO 2.

2.

CHECK TELESCOPIC 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

B2119

TELESCOPIC SEN-
SOR

The input voltage of telescopic sensor is less than 
0.1V or more than 4.9V.

• Harness and connectors

(Telescopic sensor circuit is 
opened/shorted, telescopic sen-
sor power supply circuit is 
opened/shorted.)

• Telescopic sensor

Monitor item

Condition

Value

TELESCO SEN

Telescopic position

Change between

0.8 [V] (close to top)

3.4 [V] (close to bottom)

Automatic drive positioner control unit

Tilt & telescopic sensor

Continuity

Connector

Terminal

Connector

Terminal

M51

23

M48

2

Existed

ADP-54

< DTC/CIRCUIT DIAGNOSIS >

B2119 TELESCOPIC SENSOR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK TELESCOPIC 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 TELESCOPIC 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 TELESCOPIC 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

23

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

B2119 TELESCOPIC SENSOR

ADP-55

< DTC/CIRCUIT DIAGNOSIS >

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>> INSPECTION END