control INFINITI M35 2007 Factory Service Manual

LT-158
ACTIVE AFS
Revision: 2007 April2007 M35/M45
CAUTION:
*: The value can be slightly different between that is displayed on “SWVL SEN RH/LH” and that on “SWVL ANGLE RH/LH”.SWVL ANGLE RH* “ ° ”Low beam headlamp
(right) swivelOFF Approx. 0°Displays swivel motor drive signal
(right) based on AFS control unit inter-
pretation of various vehicle sensor
signals. ON +°
SWVL ANGLE LH* “ ° ”Low beam headlamp
(left) swivelOFF Approx. 0°Displays swivel motor drive signal
(left) based on AFS control unit inter-
pretation of various vehicle sensor
signals. ON +° Monitors itemMeasuring condition
Description
Operation or conditionReference
value

LT-160
ACTIVE AFS
Revision: 2007 April2007 M35/M45
Symptom ChartNKS003QN
CAUTION:
The low beam headlamps performs small movements when AFS control unit detects the engine start.
This is normal with initialization of swivel actuator by AFS control unit.
SymptomAFS OFF
indicatorCausal system Reference

AFS operates, but cannot judge normal/
abnormal.
(AFS function test)NormalCheck swivel operation.LT- 1 8 2 , "AFS
Operation
Check (Func-
tion Test)"
Check steering angle sensor neutral point (straight-ahead
position).

Auto aiming operates, but cannot judge
normal/abnormal.
(Auto aiming function test)NormalCheck auto aiming operation.LT- 1 8 4 , "Auto
Aiming Opera-
tion Check
(Function
Test)"
Check height sensor signal value recognized by AFS con-
trol unit at unloaded vehicle position.
Check height sensor signal and aiming motor drive signal.

Neither AFS operates nor auto aiming
operates.BlinkingCheck AFS control unit self-diagnostic results. LT- 1 5 3 ,
"SELF-DIAG
RESULTS"
Check AFS control unit power supply and ground circuit.
NOTE:
Check only when “ADAPTIVE LIGHT” is not displayed on
CONSULT-II “SELECT SYSTEM” screen.LT- 1 5 1 , "Pre-
liminary
Check"

AFS does not operate.
(Auto aiming operation is normal.)Blinking Check AFS control unit self-diagnostic results. LT- 1 5 3 ,
"SELF-DIAG
RESULTS"
Illuminated Check AFS switch system circuit.LT- 1 8 6 , "
AFS
Switch Does
Not Operate"

Auto aiming does not operate.
(AFS operation is normal.)NormalCheck AFS control unit self-diagnostic results. LT- 1 5 3 ,
"SELF-DIAG
RESULTS"
Check aiming motor system circuit.LT- 1 8 8 , "
Auto
Aiming Does
Not Operate
(Check Aiming
Motor System
Circuit)"

Auto aiming operates in the reverse way.
(Lowering vehicle height angles light
axis up.)Normal Replace AFS control unit.LT- 1 9 2 , "Removal and
Installation of
AFS Control
Unit"

AFS OFF indicator does not illuminate.
(AFS operation and auto aiming opera-
tion are normal.)Not
illuminatedCheck circuit between unified meter and A/C amp. and
combination meter.LT- 1 9 1 , "
AFS
OFF Indicator
Does Not
Operate"
AFS OFF indicator blinks.
(AFS operation and auto aiming opera-
tion are normal.)BlinkingCheck receive state of AFS off indicator signal from uni-
fied meter and A/C amp.

AFS cannot be cancelled.
(AFS switch does not operate.)Normal Check AFS switch system circuit.LT- 1 8 6 , "AFS
Switch Does
Not Operate"

ACTIVE AFS
LT-161
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Revision: 2007 April2007 M35/M45
DTC B2503 SWIVEL ACTUATOR RHNKS003QO
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.
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 9 Ground 0.25 - 4.75 V
PKIC0646E
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 4 Ground 4.0 - 6.0 V
PKIC0645E
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 4 Ground 4.0 - 6.0 V
PKIC0645E

LT-162
ACTIVE AFS
Revision: 2007 April2007 M35/M45
4. CHECK SWIVEL POSITION SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH connector.
3. Turn ignition switch ON.
4. Check voltage between front combination lamp RH harness
connector 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 RH harness connector (B).
OK or NG
OK >> Replace front combination lamp RH (swivel position
sensor malfunction). Refer to LT- 1 9 1 , "
Removal and
Installation 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" .
Te r m i n a l s
Voltage
(Approx.) (+)
(-)
Front combination
lamp RH connectorTerminal
E48 15 Ground 4.0 - 6.0 V
PKIC0647E
AB
Continuity
Connector Terminal Connector Terminal
F110 9 E48 14 Yes
PKIC0648E
Te r m i n a l s
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 2 Ground 0 V
PKIC0649E

ACTIVE AFS
LT-163
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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 RH connector.
3. Check continuity between AFS control unit harness connector
(A) and front combination lamp RH harness connector (B).
OK or NG
OK >> Replace front combination lamp RH (swivel position
sensor malfunction). Refer to LT- 1 9 1 , "
Removal and
Installation 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 RH 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 2 E48 19 Yes
PKIC0650E
SKIB4975E
Terminals
Voltage
(Approx.) (+)
(-)
AFS control unit
connectorTerminal
F110 4 Ground 4.0 - 6.0 V
PKIC0651E

LT-164
ACTIVE AFS
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 RH (swivel position
sensor malfunction). Refer to LT- 1 9 1 , "
Removal and
Installation 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 9 No
SKIB4968E
AFS control unit
connectorTerminal
GroundContinuity
F110 4 No
PKIC0652E

LT-166
ACTIVE AFS
Revision: 2007 April2007 M35/M45
13. CHECK SWIVEL MOTOR CIRCUIT 1
1. Connect front combination lamp RH 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 B2503 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
right under swivel operative condition to keep more than 2 seconds.
Is DTC B2503 of present malfunction detected?
YES >> Replace front combination lamp RH (swivel actuator
malfunction). Refer to LT- 1 9 1 , "
Removal and Installation
of Front Combination Lamp" .
NO >> The swivel actuator system RH is normal at present.
(+)
(-)Voltage
(Approx.) AFS control unit
connectorTerminal
F11011
Ground 9.5 - 11.5 V 13
32
34
PKIC0657E
SKIB4974E
SKIB4977E

ACTIVE AFS
LT-167
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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 RH connector.
3. Check continuity between AFS control unit harness connector
(A) and front combination lamp RH 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
F11011
E4820
Ye s 13 21
32 17
34 16
PKIC0653E
A
GroundContinuity
Connector Terminal
F11011
No 13
32
34

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
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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