Infiniti M35/M45 Y50. Manual - part 906

ACTIVE AFS

LT-169

C

D

E

F

G

H

I

J

L

M

A

B

LT

4. 

CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front combination lamp LH connector.

3.

Turn ignition switch ON.

4.

Check voltage between front combination lamp LH harness con-
nector and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness or connector.

5. 

CHECK SWIVEL POSITION SENSOR SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect AFS control unit connector.

3.

Check continuity between AFS control unit harness connector
(A) and front combination lamp LH harness connector (B).

OK or NG

OK

>> Replace front combination lamp LH (swivel position sen-

sor malfunction). Refer to 

LT-191, "Removal and Instal-

lation of Front Combination Lamp"

 .

NG

>> Repair harness or connector.

6. 

CHECK SWIVEL POSITION SENSOR GROUND

Check voltage between AFS control unit harness connector and
ground.

OK or NG

OK

>> GO TO 7.

NG

>> Check connector for connection, bend and loose fit. If it

is normal, replace AFS control unit. Refer to 

LT-192, "Removal and Installation of AFS Control

Unit"

 .

Terminals

Voltage 

(Approx.)

(+)

(-)

Front combination 

lamp LH connector

Terminal

E53

15

Ground

4.0 - 6.0 V

PKIC0647E

A

B

Continuity

Connector

Terminal Connector

Terminal 

F110

29

E53

14

Yes

PKIC0660E

Terminals

Voltage 

(Approx.)

(+)

(-)

AFS control unit 

connector

Terminal

F110

27

Ground

0 V

PKIC0661E

LT-170

ACTIVE AFS

7. 

CHECK SWIVEL POSITION SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect AFS control unit connector and front combination lamp LH connector.

3.

Check continuity between AFS control unit harness connector
(A) and front combination lamp LH harness connector (B).

OK or NG

OK

>> Replace front combination lamp LH (swivel position sen-

sor malfunction). Refer to 

LT-191, "Removal and Instal-

lation of Front Combination Lamp"

 .

NG

>> Repair harness or connector.

8. 

CHECK DIAGNOSIS RESULT

Select “ADAPTIVE LIGHT” on CONSULT-II. Select “SELF-DIAG
RESULTS” on “SELECT DIAG MODE” screen.

Is DTC B2521 ECU CIRC detected?

YES

>> Refer to 

LT-179, "DTC B2521 ECU CIRC"

 .

NO

>> GO TO 9.

9. 

CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect front combination lamp LH connector.

3.

Turn ignition switch ON.

4.

Check voltage between AFS control unit harness connector and
ground.

OK or NG

OK

>> GO TO 10.

NG

>> GO TO 11.

A

B

Continuity

Connector

Terminal Connector

Terminal 

F110

27

E53

19

Yes

PKIC0662E

SKIB4975E

Terminals

Voltage 

(Approx.)

(+)

(-)

AFS control unit 

connector

Terminal

F110

24

Ground

4.0 - 6.0 V

PKIC0663E

ACTIVE AFS

LT-171

C

D

E

F

G

H

I

J

L

M

A

B

LT

10. 

CHECK SWIVEL POSITION SENSOR SIGNAL CIRCUIT (SHORT CIRCUIT)

1.

Turn ignition switch OFF.

2.

Disconnect AFS control unit connector.

3.

Check continuity between AFS control unit harness connector
and ground.

OK or NG

OK

>> Replace front combination lamp LH (swivel position sen-

sor malfunction). Refer to 

LT-191, "Removal and Instal-

lation of Front Combination Lamp"

 .

NG

>> Repair harness or connector.

11. 

CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT (SHORT CIRCUIT)

1.

Turn ignition switch OFF.

2.

Disconnect AFS control unit connector.

3.

Check continuity between AFS control unit harness connector
and ground.

OK or NG

OK

>> Replace AFS control unit. Refer to 

LT-192, "Removal

and Installation of AFS Control Unit"

 .

NG

>> Repair harness or connector.

AFS control unit 

connector

Terminal 

Ground

Continuity

F110

29

No

SKIB4969E

AFS control unit 

connector

Terminal 

Ground

Continuity

F110

24

No

PKIC0664E

LT-172

ACTIVE AFS

12. 

CHECK SWIVEL MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect front combination lamp LH connector.

3.

Check continuity between front combination lamp LH connector
terminals.

4.

Check continuity between front combination lamp LH connector
terminals.

5.

Check continuity between front combination lamp LH connector
terminals (insulation resistance).

OK or NG

OK

>> GO TO 13.

NG

>> Replace front combination lamp LH (swivel motor mal-

function). Refer to 

LT-191, "Removal and Installation of

Front Combination Lamp"

 .

Front combination lamp LH terminals (2 phase)

Resistance

16

20

Approx. 7.4

Ω

PKIC0655E

Front combination lamp LH terminals (1 phase)

Resistance

17

21

Approx. 7.4

Ω

PKIC0656E

Front combination lamp LH terminals

Resistance

16

17

Approx. 1 M

Ω

 or more

PKIC0654E