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AUTO LIGHT SYSTEM
LT-73
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6. CHECK OPTICAL SENSOR OUTPUT VOLTAGE
1. Connect BCM connector and optical sensor connector.
2. Turn ignition switch ON.
3. Check difference in the voltage between BCM and ground, when
optical sensor is illuminated and not illuminated.
CAUTION:
Optical sensor must be securely subjected to work lamp
light. If the optical sensor is insufficiently illuminated, the measured value may not satisfy the
standard.
Check result
OK >> Replace BCM. Refer to BCS-16, "Removal and Installation of BCM" .
NG >> GO TO 7.
7. CHECK BCM OUTPUT VOLTAGE
Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 8.
NG >> Replace BCM. Refer to BCS-16, "
Removal and Installa-
tion of BCM" .
8. CHECK OPTICAL SENSOR GROUND CIRCUIT
Check voltage between BCM harness connector and ground.
OK or NG
OK >> Replace optical sensor.
NG >> Replace BCM. Refer to BCS-16, "
Removal and Installa-
tion of BCM" .
BCM connector Terminal
GroundConditionVoltage
(Approx.)
M3 14When optical sensor
is illuminated.3.1 V or more
When optical sensor
is not illuminated.0.6 V or less
PKID0086E
BCM connector Terminal
GroundVoltage
(Approx.)
M3 17 5 V
PKID0278E
BCM connector Terminal
GroundVoltage
(Approx)
M3 18 0 V
PKID0085E
Page 2762 of 3502
LT-74
AUTO LIGHT SYSTEM
Removal and Installation for Optical SensorBKS001OK
REMOVAL
1. Remove instrument panel. Refer to IP-10, "INSTRUMENT
PANEL ASSEMBLY" .
2. Disconnect optical sensor connector.
3. Remove optical sensor.
INSTALLATION
Installation is the reverse order of removal.
SKIB0895E
Page 2763 of 3502
ACTIVE AFS
LT-75
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ACTIVE AFSPFP:253C0
Component Parts and Harness Connector LocationBKS002BW
System DescriptionBKS002BX
AFS (ADAPTIVE FRONT-LIGHTING SYSTEM)
Bending lamp (exclusive lamp for AFS) turn ON/OFF depending on the steering wheel angle and the vehi-
cle speed, when the headlamp LOW/HIGH lights, and the shift position is at any ranges except P.
Bending lamp supplies efficient light distribution for turning intersection and driving on the curves.
When turning to the left (right), bending lamp left (right) turn ON/OFF while driving forward or backward.
PKID0044E
Page 2764 of 3502
![NISSAN TEANA 2003 Service Manual LT-76
ACTIVE AFS
OUTLINE
Power is supplied at all times
to ignition relay [located in IPDM E/R (Intelligent Power Distribution Module Engine Room)], from battery
direct,
through 15A fuse (No. 71, NISSAN TEANA 2003 Service Manual LT-76
ACTIVE AFS
OUTLINE
Power is supplied at all times
to ignition relay [located in IPDM E/R (Intelligent Power Distribution Module Engine Room)], from battery
direct,
through 15A fuse (No. 71,](/manual-img/5/57392/w960_57392-2763.png)
LT-76
ACTIVE AFS
OUTLINE
Power is supplied at all times
to ignition relay [located in IPDM E/R (Intelligent Power Distribution Module Engine Room)], from battery
direct,
through 15A fuse (No. 71, located in IPDM E/R)
to CPU (central processing unit) in IPDM E/R,
through 15A fuse (No. 78, located in IPDM E/R)
to CPU in IPDM E/R,
through 10A fuse (No. 38, located in fuse and fusible link block)
to AFS control unit terminal 6.
With the ignition switch in the ON or START position, power is supplied
to ignition relay (located in IPDM E/R),
through 10A fuse [No. 12, located in fuse block (J/B)]
to steering angle sensor terminal 3 and
to AFS control unit terminal 1.
Ground is supplied
to IPDM E/R terminals 38 and 60
through grounds E1 and E31,
to steering angle sensor terminal 2 and
to AFS control unit terminal 4
through grounds M71 and M72.
BENDING LAMP OPERATION
Bending lamp right/left turn ON depending on the steering wheel angle and the vehicle speed under the oper-
ating condition. Bending lamp right/left turn OFF when the steering wheel is returned to the straight.
Operation condition
CAN communication control
AFS control unit is connected to CAN communication line, and receives the signal necessary for active
AFS control with CAN communication.
Steering wheel Lighting switch A/T or CVT shift positionBending lamp RH Bending lamp LH
Lamp ON Lamp ON
Turn to rightOFF, 1ST —
2ND
(LOW, HIGH)P range
Except P range×
Turn to leftOFF, 1ST —
2ND
(LOW, HIGH)P range
Except P range×
Ignition switch Headlamp status A/T or CVT shift position Steering wheel angle Vehicle speed
ONIlluminated
(LOW or HIGH)Except P rangeBending lamp turn ON/
OFF according to the
steering wheel angle.Steering wheel angle, which decides if
bending lamp turn ON, depends on the
vehicle speed.
Transmit unit Meter & A/C amp. Steering angle sensor TCM IPDM E/R
Signal name Vehicle speed signal Steering angle sensor signal TCM shift position signal
Headlamp LO beam signal
Headlamp HI beam signal
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ACTIVE AFS
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When The Steering Wheel Is Turned To The Left
AFS control unit supplies power
through AFS control unit terminal 3
to front combination lamp LH terminal 9.
Ground is supplied
to front combination lamp LH terminal 10
through grounds E1 and E31.
With power and grounds supplied, the bending lamp LH illuminate.
When The Steering Wheel Is Turned To The Right
AFS control unit supplies power
through AFS control unit terminal 8
to front combination lamp RH terminal 9.
Ground is supplied
to front combination lamp RH terminal 10
through grounds E1 and E31.
With power and grounds supplied, the bending lamp RH illuminate.
CAN Communication System DescriptionBKS0041K
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitBKS0041L
Refer to LAN-49, "CAN System Specification Chart" .
Page 2766 of 3502
LT-78
ACTIVE AFS
SchematicBKS002F6
TKWM4586E
Page 2767 of 3502
ACTIVE AFS
LT-79
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Wiring Diagram — AFS —BKS002F7
TKWM4587E
Page 2768 of 3502
LT-80
ACTIVE AFS
TKWM4588E