Infiniti G35 (V35) Sedan. Manual - part 651

EXL-46

< COMPONENT DIAGNOSIS >

[XENON TYPE]

B2503, B2504 SWIVEL ACTUATOR

Is the measurement value normal?

YES

>> GO TO 10.

NO

>> Replace AFS control unit.

10.

CHECK SWIVEL POSITION SENSOR SHORT GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect AFS control unit connector and the headlamp swivel actuator connector.

3.

Check continuity between the AFS control unit harness connector and the headlamp swivel actuator har-
ness connector.

Does continuity exist?

YES

>> Replace the front combination lamp.

NO

>> Repair the harnesses or connectors.

Component Inspection

INFOID:0000000000962437

1.

CHECK SWIVEL MOTOR SINGLE PART

1.

Disconnect the swivel actuator connector.

2.

Check the resistance among each swivel actuator connector terminal.

Is the measurement value normal?

YES

>> Swivel actuator is normal.

NO

>> Replace the front combination lamp.

Terminals

Voltage

(Approx.)

(+)

(

−

)

AFS control unit

Ground

Connector

Terminal

RH

M16

2

0 V

LH

27

AFS control unit

Headlamp swivel actua-

tor

Continuity

Connector

Terminal

Connector

Terminal

RH

M16

2

E29

6

Existed

LH

27

E59

6

Swivel actuator

Resistance

(Approx.)

Terminal

Terminal

3

7

7.2 

Ω

4

8

7.2 

Ω

3

4

10  M

Ω

 or more

B2514 HEIGHT SENSOR UNUSUAL [RR]

EXL-47

< COMPONENT DIAGNOSIS >

[XENON TYPE]

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B2514 HEIGHT SENSOR UNUSUAL [RR]

Description

INFOID:0000000000962438

The height sensor is installed to the rear suspension arm. The height sensor detects the suspension arm dis-
placement as the vehicle height change. The height sensor transmits the height sensor signal to AFS control
unit.
NOTE:
The sensor angle of the unloaded vehicle position is the reference value.

DTC Logic

INFOID:0000000000962439

DTC DETECTION LOGIC

[B2514] Height sensor unusual [RR]

DTC CONFIRMATION PROCEDURE

1.

DTC ERASE

Erase the DTC memory of AFS with CONSULT-III.

>> GO TO 2.

2.

DTC CONFIRMATION

1.

Start the engine.

2.

Turn the headlamp ON.

3.

Select the self-diagnosis with CONSULT-III.

4.

Check the self-diagnosis result. Refer to 

EXL-173, "DTC Index"

.

Is "B2514" detected?

YES

>> Refer to 

EXL-43, "Diagnosis Procedure"

. 

NO

>> Refer to 

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000962440

1.

CHECK HEIGHT SENSOR POWER SUPPLY OUTPUT

1.

Turn the ignition switch ON.

2.

Check the voltage between the AFS control unit harness connector and the ground.

Is the measurement value within the standard value?

YES

>> GO TO 2.

NO

>> Replace AFS control unit.

2.

CHECK HEIGHT SENSOR POWER SUPPLY INPUT

Check the voltage between the AFS control unit harness connector and the ground.

DTC detection condition

DTC erase condition

Possible cause

An applicable DTC is indicated when any of the following 
conditions is detected continuously for 2 seconds or more. 
• The height sensor power supply is 6 V or more, or 4 V or 

less.

• The height sensor signal is 0.25 V or less, or 4.75 V or 

more.

Ignition switch OFF

Height sensor
• Height sensor
• Harness and connector
• AFS  control  unit

Terminals

Voltage

(Approx.)

(+)

(

−

)

AFS control unit

Ground

Connector

Terminal

M16

6

4 - 6 V

EXL-48

< COMPONENT DIAGNOSIS >

[XENON TYPE]

B2514 HEIGHT SENSOR UNUSUAL [RR]

Is the measurement value within the standard value?

YES

>> Replace AFS control unit.

Less than the standard value >>GO TO 3.
Higher than the standard value>>GO TO 6.

3.

CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT OUTPUT VOLTAGE

1.

Turn the ignition switch OFF.

2.

Disconnect the height sensor connector.

3.

Turn the ignition switch ON.

4.

Check the voltage between the height sensor harness connector and the ground.

Is the measurement value within the standard value?

YES

>> GO TO 4.

NO

>> Repair the harnesses or connectors.

4.

CHECK HEIGHT SENSOR SIGNAL OPEN CIRCUIT 

1.

Turn the ignition switch OFF.

2.

Disconnect AFS control unit connector. 

3.

Check continuity between the AFS control unit harness connector and the height sensor harness connec-
tor.

Does continuity exist?

YES

>> GO TO 5.

NO

>> Repair the harnesses or connectors.

5.

CHECK HEIGHT SENSOR SIGNAL SHORT CIRCUIT

Check continuity between the height sensor harness connector and the ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

NO

>> Replace the height sensor.

6.

CHECK HEIGHT SENSOR GROUND

Terminals

Voltage

(Approx.)

(+)

(

−

)

AFS control unit

Ground

Connector

Terminal

M16

28

0.25 - 4.75 V

Terminals

Voltage

(Approx.)

(+)

(

−

)

Height sensor

Ground

Connector

Terminal

B32

1

4 - 6 V

AFS control unit

Height sensor

Continuity

Connector

Terminal

Connector

Terminal

M16

28

B32

2

Existed

Terminals

Continuity

(+)

(

−

)

Height sensor

Ground

Connector

Terminal

B32

2

Not existed

B2514 HEIGHT SENSOR UNUSUAL [RR]

EXL-49

< COMPONENT DIAGNOSIS >

[XENON TYPE]

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Check the voltage between the AFS control unit harness connector and the ground.

Is the measurement value within the standard value?

YES

>> GO TO 7.

NO

>> Replace AFS control unit.

7.

CHECK HEIGHT SENSOR GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect AFS control unit connector and the height sensor connector.

3.

Check continuity between the AFS control unit harness connector and the height sensor harness connec-
tor.

Does continuity exist?

YES

>> Replace the height sensor.

NO

>> Repair the harnesses or connectors.

Component Inspection

INFOID:0000000000962441

1.

CHECK HEIGHT SENSOR

1.

Start the engine.

2.

Turn the light switch 2ND.

3.

Select "HI SEN OTP RR” of AFS data monitor item.

4.

Remove the height sensor link bracket nut.

5.

With moving the sensor lever, check the monitor status.

17-inch wheel models

18-inch wheel models

Terminals

Voltage

(Approx.)

(+)

(

−

)

AFS control unit

Ground

Connector

Terminal

M16

8

0 V

AFS control unit

Height sensor

Continuity

Connector

Terminal

Connector

Terminal

M16

8

B32

3

Existed

Sensor angle

LEV ACTR VLTG 

(Approx.)

Reference value 

(Approx.)

“HI SEN OTP RR”

Standard value (Approx.)

Detection limit (suspen-
sion expansion side)

70%

45

°

4.5 V

Leveling operation up-
ward edge (unloaded ve-
hicle condition)

70%

0

°

2.5 V

Leveling operation down-
ward edge 

34.6%

-25

°

1.6 V

Detection limit (suspen-
sion contraction side)

34.6%

-45

°

0.9 V

Sensor angle

LEV ACTR VLTG 

(Approx.)

Reference value 

(Approx.)

“HI SEN OTP RR”

Standard value (Approx.)

Detection limit (suspen-
sion expansion side)

70%

45

°

4.5 V

Leveling operation up-
ward edge (unloaded ve-
hicle condition)

70%

0

°

2.5 V