2007 INFINITI M35 control unit

LT-168
ACTIVE AFS
Revision: 2007 April2007 M35/M45
DTC B2504 SWIVEL ACTUATOR LHNKS003QP
1. CHECK SWIVEL POSITION SENSOR SIGNAL
1. Turn ignition switch ON.
2. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> GO TO 2.
NG >>

If voltage is less than approx. 0.25V, GO TO 3.

If voltage is more than approx. 4.75V, GO TO 6.
2. CHECK SWIVEL POSITION SENSOR POWER SUPPLY
Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> GO TO 12.
NG >> Replace AFS control unit. Refer to LT- 1 9 2 , "
Removal
and Installation of AFS Control Unit" .
3. CHECK SWIVEL POSITION SENSOR POWER SUPPLY
Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 8.
Te r m i n a l s
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 29 Ground 0.25 - 4.75 V
PKIC0658E
Te r m i n a l s
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 24 Ground 4.0 - 6.0 V
PKIC0659E
Te r m i n a l s
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 24 Ground 4.0 - 6.0 V
PKIC0659E

ACTIVE AFS
LT-169
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
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- 1 9 1 , "
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- 1 9 2 , "
Removal and Installation of AFS Control
Unit" .
Terminals
Voltage
(Approx.) (+)
(-)
Front combination
lamp LH connectorTerminal
E53 15 Ground 4.0 - 6.0 V
PKIC0647E
AB
Continuity
Connector Terminal Connector Terminal
F110 29 E53 14 Yes
PKIC0660E
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 27 Ground 0 V
PKIC0661E

LT-170
ACTIVE AFS
Revision: 2007 April2007 M35/M45
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- 1 9 1 , "
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- 1 7 9 , "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.
AB
Continuity
Connector Terminal Connector Terminal
F110 27 E53 19 Yes
PKIC0662E
SKIB4975E
Te r m i n a l s
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 24 Ground 4.0 - 6.0 V
PKIC0663E

ACTIVE AFS
LT-171
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
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- 1 9 1 , "
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- 1 9 2 , "Removal
and Installation of AFS Control Unit" .
NG >> Repair harness or connector.
AFS control unit
connectorTerminal
GroundContinuity
F110 29 No
SKIB4969E
AFS control unit
connectorTerminal
GroundContinuity
F110 24 No
PKIC0664E

ACTIVE AFS
LT-173
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
13. CHECK SWIVEL MOTOR CIRCUIT 1
1. Connect front combination lamp LH connector.
2. Turn ignition switch ON.
3. Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> GO TO 14.
NG >> GO TO 16.
14. CHECK DIAGNOSIS RESULT 1
Select “ADAPTIVE LIGHT” on CONSULT-II. Select “SELF-DIAG
RESULTS” on “SELECT DIAG MODE” screen.
Is DTC of present malfunction detected?
YES >>
If detect DTC B2503 and B2504, refer to LT- 1 6 8 ,
"DTC B2504 SWIVEL ACTUATOR LH" .

If detect DTC B2504 only, replace AFS control unit.
Refer to LT- 1 9 2 , "
Removal and Installation of AFS
Control Unit" .

If detect any DTC except B2503 and B2504, refer to
LT- 1 5 3 , "
SELF-DIAG RESULTS" .
NO >> GO TO 15.
15. CHECK DIAGNOSIS RESULT 2
Check “SELF-DIAG RESULTS” with steering turning 180° or more to
left under swivel operative condition to keep more than 2 seconds.
Is DTC B2504 of present malfunction detected?
YES >> Replace front combination lamp LH (swivel actuator
malfunction). Refer to LT- 1 9 1 , "
Removal and Installation
of Front Combination Lamp" .
NO >> The swivel actuator system LH is normal at present.
(+)
(-)Voltage
(Approx.) AFS control unit
connectorTerminal
F11015
Ground 9.5 - 11.5 V 17
36
38
PKIC0665E
SKIB4974E
SKIB4976E

LT-174
ACTIVE AFS
Revision: 2007 April2007 M35/M45
16. CHECK SWIVEL MOTOR CIRCUIT 2
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).
4. Check continuity between AFS control unit harness connector
(A) and ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 2 , "Removal and Installation of AFS Control Unit" .
NG >> Repair or replace harness or connector.
AB
Continuity
Connector Terminal Connector Terminal
F11015
E5317
Ye s 17 16
36 20
38 21
A
GroundContinuity
Connector Terminal
F11015
No 17
36
38
PKIC0666E

ACTIVE AFS
LT-175
C
D
E
F
G
H
I
J
L
MA
B
LT
Revision: 2007 April2007 M35/M45
DTC B2514 HI SEN UNUSUAL RRNKS003QQ
1. CHECK HEIGHT SENSOR SIGNAL
1. Turn ignition switch ON.
2. Select “ADAPTIVE LIGHT” on CONSULT-II. Select “DATA
MONITOR” on “SELECT DIAG MODE” screen.
3. Check “HI SEN OTP RR” in “Data Monitor”.
OK or NG
OK >> GO TO 2.
NG >>

If voltage is less than approx. 0.25V, GO TO 3.

If voltage is more than approx. 4.75V, GO TO 7.
2. CHECK HEIGHT SENSOR POWER SUPPLY
Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> The height sensor system is normal at present.
NG >> Replace AFS control unit. Refer to LT- 1 9 2 , "
Removal
and Installation of AFS Control Unit" .
3. CHECK HEIGHT SENSOR SIGNAL
Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 1 9 2 , "Removal
and Installation of AFS Control Unit" .
NG >>

If voltage is less than approx. 0.25V, GO TO 4.

If voltage is more than approx. 4.75V, GO TO 7. HI SEN OTP RR : Approx. 0.25 – 4.75 V
SKIB4793E
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 6 Ground 4.0 - 6.0 V
PKIC0667E
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 28 Ground 0.25 - 4.75 V
PKIC0668E

LT-176
ACTIVE AFS
Revision: 2007 April2007 M35/M45
4. CHECK HEIGHT SENSOR POWER SUPPLY
Check voltage between AFS control unit harness connector and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 9.
5. CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect height sensor connector.
3. Turn ignition switch ON.
4. Check voltage between height sensor harness connector and
ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK HEIGHT SENSOR SIGNAL CIRCUIT
1. Disconnect AFS control unit connector.
2. Check continuity between AFS control unit harness connector
(A) and height sensor harness connector (B).
OK or NG
OK >> Replace height sensor. Refer to LT- 1 9 3 , "Removal and
Installation of Height Sensor" .
NG >> Repair harness or connector.
Te r m i n a l s
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 6 Ground 4.0 - 6.0 V
PKIC0667E
Terminals
Voltage
(Approx.) (+)
(-)
Height sensor
connectorTerminal
B468 1 Ground 4.0 - 6.0 V
PKIC0669E
AB
Continuity
Connector Terminal Connector Terminal
F110 28 B103 2 Yes
PKIC0670E