Infiniti G37 Coupe. Manual — part 651
EXL-24
< FUNCTION DIAGNOSIS >
[XENON TYPE]
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
System Diagram
INFOID:0000000001604601
System Description
INFOID:0000000001604602
OUTLINE
Turn signal and the hazard warning lamp is controlled by combination switch reading function and the flasher
control 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 OPERATION
• BCM transmits the turn signal indicator lamp signal to the combination meter (through unified meter and A/C
amp.) with CAN communication while the turn signal 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 signal indicator lamp signal.
HIGH FLASHER OPERATION (FAIL-SAFE)
• BCM detects the turn signal lamp circuit status from the terminal voltage.
• 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.
JPLIA0003GB
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
EXL-25
< FUNCTION DIAGNOSIS >
[XENON TYPE]
C
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EXL
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Component Parts Location
INFOID:0000000001604603
Component Description
INFOID:0000000001604604
1.
Front turn signal lamp
2.
Combination switch
3.
Rear turn signal lamp
4.
Hazard warning switch
5.
BCM
6.
Unified meter and A/C amp.
7.
Turn signal indicator lamp
A.
Dash side lower (Passenger side)
B.
Behind cluster lid C
C.
On the combination meter
JPLIA0586ZZ
Part
Description
BCM
• Judges each switch condition by the combination switch reading function.
• Judges the blinks of the turn signal lamp and the hazard warning lamp from each
switch status. The applicable turn signal lamp blinks.
Requests the turn signal indicator lamp blink to the combination meter (with CAN
communication).
Combination switch
(Lighting & turn signal switch)
Refer to
.
Hazard switch
(Multifunction switch)
Refer to
Combination meter
(Turn signal indicator lamp & buzzer)
Blinks the turn signal indicator lamp and outputs the turn signal operating sound with
integrated buzzer according to the request from BCM [with CAN communication
(through unified meter and A/C amp.)].
EXL-26
< FUNCTION DIAGNOSIS >
[XENON TYPE]
PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM
PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM
System Diagram
INFOID:0000000001604605
System Description
INFOID:0000000001604606
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 with CAN communication 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 (with auto light system)
• IPDM E/R turns the integrated tail lamp relay ON and turns the parking lamp, the license plate, side marker
and tail lamps ON according to the position light request signal.
JPLIA0002GB
PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM
EXL-27
< FUNCTION DIAGNOSIS >
[XENON TYPE]
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Component Parts Location
INFOID:0000000001604607
Component Description
INFOID:0000000001604608
1.
• Parking lamp
• Front side marker lamp
2.
Combination switch
3.
• Tail lamp
• Rear side marker lamp
4.
License plate lamp
5.
BCM
6.
IPDM E/R
A.
Dash side lower (Passenger side)
B.
Engine room dash panel (RH)
JPLIA0582ZZ
Part
Description
BCM
• Judges each switch condition by the combination switch reading function.
• Judges the ON/OFF status of the clearance, license plate, side marker and tail
lamps according to the vehicle condition. Requests the tail lamp relay ON to IPDM
E/R (with CAN communication).
IPDM E/R
Controls the integrated relay and supplies voltage to the load according to the request
from BCM (with CAN communication).
Combination switch
(Lighting & turn signal switch)
Refer to
.
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