Infiniti QX56 (Z62). Manual — part 681
EXL-16
< SYSTEM DESCRIPTION >
[XENON TYPE]
SYSTEM
- Swivels the headlamp to the vehicle-center side until it hits the stopper.
- Returns the swivel angle from the stopper. Completes the initialization with regarding the returned position
as the swivel angle 0
°
(straight-forward position).
Swivel Operation
• AFS control unit transmits the drive signal to the swivel actuator when activation conditions are satisfied.
And swivels the headlamp.
- The swivel starts after steering approximately 20
°
or more from straight-forward position.
NOTE:
The steering angle differs between right turn and left turn.
- The swivel angle becomes the maximum angle toward the driving direction if the steering angle is approxi-
mately 90
°
or more depending on the vehicle speed. The swivel angle is maintained by shutting off the drive
signal.
- The swivel starts, and returns to the swivel angle 0
°
(straight-forward position) when the steering is returned
to the straight-forward position.
• AFS control unit returns the swivel angle to the straight-forward position, and stops the swivel regardless of
the steering angle if the operation condition is not satisfied while the swivel angle is 0
°
.
AFS OFF Indicator Lamp
• AFS control unit transmits AFS OFF indicator lamp signal to the combination meter via CAN communication.
• Combination meter turns AFS OFF indicator lamp ON/OFF/blinking according to AFS OFF indicator lamp
signal.
- AFS OFF indicator lamp is turned ON for 1 second for the AFS OFF indicator lamp bulb check when the igni-
tion switch is turned ON. AFS OFF indicator lamp is turned OFF within 1 second when the engine starts.
- AFS OFF indicator lamp turns ON when AFS is switched to “OFF” by operating AFS switch.
- AFS OFF indicator lamp blinks (1 second each) if AFS control unit detects a specific DTC.
NOTE:
Combination meter blinks AFS OFF indicator lamp (approximately 1 second each) if AFS OFF indicator
lamp signal is not received from AFS control unit.
HEADLAMP AUTO AIMING
Headlamp Auto Aiming Control Description
• AFS control unit controls the headlamp light axis height appropriately according to the vehicle height.
• AFS control unit detects the vehicle condition necessary for headlamp auto aiming control with the following
signals.
- Height sensor signals (front and rear)
- Vehicle speed signal (received from combination meter via CAN communication)
- Low beam status signal (received from IPDM E/R via CAN communication)
- Engine speed signal (received from ECM via CAN communication)
• When the operation conditions are satisfied, AFS control unit transmits the aiming motor drive signal for
adjusting the headlamp axis height.
Headlamp auto aiming operation condition
- Headlamp ON
- While the engine running
- Vehicle speed (Control mode is switched according to the driving condition.)
Headlamp Auto Aiming Operation
• AFS control unit calculates the vehicle pitch angle from the front and rear height sensor signal. AFS control
unit judges the angle for adjusting the axis gap from the preset position.
• AFS control unit controls the headlamp axis by changing the aiming motor drive signal output according to
the front and rear vehicle height when detecting the following vehicle condition. Output is maintained if other
condition than following is detected.
- Engine starts.
- Headlamp is turned ON.
- Vehicle posture becomes stable after changing the vehicle posture change is detected with the headlamp
ON and the vehicle stopped.
- Vehicle speed is maintained with the headlamp ON and the vehicle driven.
CAUTION:
Adjusted axis position may differ from the preset position although the headlamp auto aiming acti-
vates properly if the suspension is replaced or worn.
SYSTEM
EXL-17
< SYSTEM DESCRIPTION >
[XENON TYPE]
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ACTIVE ADAPTIVE FRONT-LIGHTING SYSTEM : Fail-Safe
INFOID:0000000006422028
HEADLAMP AIMING CONTROL (MANUAL)
DTC
Fail-safe
AFS OFF indicator lamp
Cancellation
U1000: CAN COMM CIRCUIT
• Right and left swivel motors
stop at the position when DTC
is detected.
• Right and left aiming motors
stop at the position when DTC
is detected.
Blinks 1 second each.
Ignition switch OFF
U1010: CONTROL UNIT (CAN)
• Right and left swivel motors
stop at the position when DTC
is detected.
• Right and left aiming motors
stop at the position when DTC
is detected.
Blinks 1 second each.
Ignition switch OFF
B2503: SWIVEL ACTUATOR [RH]
• Right swivel motors stop at the
position when DTC is detected.
• The signal, approximately 2 V
decreased from the levelizer
signal when DTC detected, is
output.
Blinks 1 second each.
Ignition switch OFF
B2504: SWIVEL ACTUATOR [LH]
• Left swivel motors stop at the
position when DTC is detected.
• The signal, approximately 2 V
decreased from the levelizer
signal when DTC detected, is
output.
Blinks 1 second each.
Ignition switch OFF
B2513: HI SEN UNUSUAL [FR]
• Right and left aiming motors
stop at the position when DTC
is detected.
—
Ignition switch OFF
B2514: HI SEN UNUSUAL [RR]
• Right and left aiming motors
stop at the position when DTC
is detected.
—
Ignition switch OFF
C0126: ST ANG SEN SIG
• Right and left swivel motor
swivel angle returns to 0
°
and
fixed.
Blinks 1 second each.
Ignition switch OFF
B2516: SHIFT SIG [P, R]
• Right and left swivel motor
swivel angle returns to 0
°
and
fixed.
Blinks 1 second each.
Ignition switch OFF
B2517: VEHICLE SPEED SIG
• Right and left swivel motor
swivel angle returns to 0
°
and
fixed.
• Right and left aiming motors
stop at the position when DTC
is detected.
Blinks 1 second each.
Ignition switch OFF
B2519: LEVELIZER CALIB
• Right and left aiming motors
stop at the position when DTC
is detected.
—
When the levelizer adjustment is
completed.
C0428: ST ANGLE SEN CALIB
• Right and left swivel motor
swivel angle returns to 0
°
and
fixed.
Blinks 1 second each.
When the steering angle sensor
neutral position registration is
competed.
B2521: ECU CIRC
• Right and left swivel motors
stop at the position when DTC
is detected.
• Right and left aiming motors
stop at the position when DTC
is detected.
Blinks 1 second each.
Ignition switch OFF
EXL-18
< SYSTEM DESCRIPTION >
[XENON TYPE]
SYSTEM
HEADLAMP AIMING CONTROL (MANUAL) : System Description
INFOID:0000000006216751
The headlamp levelizer adjusts the headlamp light axis upward and downward with the aiming motor inte-
grated in the front combination lamp.
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM : System Diagram
INFOID:0000000006213901
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM : System Description
INFOID:0000000006213902
OUTLINE
Turn signal and the hazard warning lamp is controlled by combination switch reading function, flasher control
function and auto hazard function of BCM.
TURN SIGNAL LAMP OPERATION
• BCM detects the combination switch condition by the combination switch reading function.
• BCM supplies voltage to the right (left) turn signal lamp circuit when the ignition switch is turned ON and the
turn signal switch is in the right (left) position. BCM blinks the turn signal lamp.
HAZARD WARNING LAMP OPERATION
BCM supplies voltage to both turn signal lamp circuit when the hazard switch is turned ON. BCM blinks the
hazard warning lamp.
TURN SIGNAL INDICATOR LAMP AND TURN SIGNAL SOUND OPERATION
• BCM transmits the turn indicator signal to the combination meter via CAN communication while the turn sig-
nal lamp and the hazard warning lamp operating.
• Combination meter outputs the turn signal sound with the integrated buzzer while blinking the turn signal
indicator lamp according to the turn indicator signal.
HIGH FLASHER OPERATION
• BCM detects the turn signal lamp circuit status from the current value.
• BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn sig-
nal lamp operating.
NOTE:
The blinking speed is normal while operating the hazard warning lamp.
PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM
PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM : System Di-
JPLIA0180GB
SYSTEM
EXL-19
< SYSTEM DESCRIPTION >
[XENON TYPE]
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agram
INFOID:0000000006213903
PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM : System De-
scription
INFOID:0000000006213904
OUTLINE
Parking, license plate, side marker and tail lamps are controlled by combination switch reading function and
headlamp control function of BCM, and relay control function of IPDM E/R.
PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMPS OPERATION
• BCM detects the combination switch condition by the combination switch reading function.
• BCM transmits the position light request signal to IPDM E/R and the combination meter via CAN communi-
cation according to the ON/OFF condition of the parking, license plate, side marker and tail lamps.
Parking, license plate, side marker and tail lamps ON condition
- Lighting switch 1ST
- Lighting switch 2ND
- Lighting switch AUTO, and the auto light function ON judgment
- Lighting switch AUTO, with the front fog lamp switch ON and the ignition switch ON
• IPDM E/R turns the integrated tail lamp relay ON and turns the parking, license plate, side marker and tail
lamps ON according to the position light request signal.
• Combination meter turns the tail lamp indicator lamp ON according to the position light request signal.
PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM : Fail-safe
INFOID:0000000006213905
CAN COMMUNICATION CONTROL
When CAN communication with BCM is impossible, IPDM E/R performs fail-safe control. After CAN communi-
cation recovers normally, it also returns to normal control.
If No CAN Communication Is Available With BCM
*: With daytime running light system
FRONT FOG LAMP SYSTEM
JMLIA0687GB
Control part
Fail-safe operation
• Parking lamps
• License plate lamps
• Illuminations
• Tail lamps
• Turns ON the tail lamp relay and daytime running light relay
*
when the ignition switch
is turned ON
• Turns OFF the tail lamp relay and daytime running light relay
*
when the ignition switch
is turned OFF
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