Infiniti QX56 (Z62). Manual — part 682
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< SYSTEM DESCRIPTION >
[XENON TYPE]
SYSTEM
FRONT FOG LAMP SYSTEM : System Diagram
INFOID:0000000006213906
FRONT FOG LAMP SYSTEM : System Description
INFOID:0000000006213907
OUTLINE
Front fog lamp is controlled by combination switch reading function and front fog lamp control function of BCM,
and relay control function of IPDM E/R.
FRONT FOG LAMP OPERATION
• BCM detects the combination switch condition by the combination switch reading function.
• BCM transmits the front fog lights request signal to IPDM E/R via CAN communication according to the front
fog lamp ON condition.
Front fog lamp ON condition
- Front fog lamp switch ON and any of the followings. (except for the high beam ON)
• Lighting switch 2ND
• Lighting switch AUTO (auto light function ON judgment)
IPDM E/R turns the integrated front fog lamp relay ON, and turns the front fog lamp ON according to the front
fog lights request signal.
FRONT FOG LAMP SYSTEM : Fail-Safe
INFOID:0000000006422123
CAN COMMUNICATION CONTROL
When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN
communication recovers normally, it also returns to normal control.
If No CAN Communication Is Available With BCM
EXTERIOR LAMP BATTERY SAVER SYSTEM
EXTERIOR LAMP BATTERY SAVER SYSTEM : System Diagram
INFOID:0000000006213908
JMLIA1154GB
Control part
Fail-safe operation
Front fog lamp
Front fog lamp relay OFF
JPLIA1037GB
SYSTEM
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< SYSTEM DESCRIPTION >
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EXTERIOR LAMP BATTERY SAVER SYSTEM : System Description
INFOID:0000000006213909
OUTLINE
• Exterior lamp battery saver system is controlled by each function of BCM and IPDM E/R.
Control by BCM
- Combination switch reading function
- Headlamp control function
- Exterior lamp battery saver function
Control by IPDM E/R
- Relay control function
• BCM turns the exterior lamp* OFF after a period of time to prevent the battery from over-discharge when the
ignition switch is turned OFF with the exterior lamp ON.
*: Headlamp (LO/HI), parking lamp, tail lamp, side marker lamp, license plate lamp and front fog lamp
EXTERIOR LAMP BATTERY SAVER ACTIVATION
BCM activates the timer and turns the exterior lamp OFF 5 minutes after the ignition switch is turned from ON
→
OFF with the exterior lamps ON.
NOTE:
• Headlamp control function turns the exterior lamps ON normally when the ignition switch is turned ACC or
the engine started (both before and after the exterior lamp battery saver is turned OFF).
• The timer starts at the time that the lighting switch is turned from OFF
→
1ST or 2ND with the exterior lamp
OFF.
EXL-22
< SYSTEM DESCRIPTION >
[XENON TYPE]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)
INFOID:0000000006368037
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×
: Applicable item
*: This item is indicated, but not used.
FREEZE FRAME DATA (FFD)
The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT-III.
Diagnosis mode
Function Description
Work Support
Changes the setting for each system function.
Self Diagnostic Result
Displays the diagnosis results judged by BCM. Refer to
CAN Diag Support Monitor
Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor
The BCM input/output signals are displayed.
Active Test
The signals used to activate each device are forcibly supplied from BCM.
Ecu Identification
The BCM part number is displayed.
Configuration
• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.
System
Sub system selection item
Diagnosis mode
Work Support
Data Monitor
Active Test
Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps
FLASHER
×
×
×
—
AIR CONDITONER*
×
×
• Intelligent Key system
• Engine start system
INTELLIGENT KEY
×
×
×
Combination switch
COMB SW
×
Body control system
BCM
×
IVIS
IMMU
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Back door
TRUNK
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
Signal buffer system
SIGNAL BUFFER
×
×
DIAGNOSIS SYSTEM (BCM)
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HEADLAMP
HEADLAMP : CONSULT-III Function (BCM - HEAD LAMP)
INFOID:0000000006213911
WORK SUPPORT
CONSULT screen item
Indication/Unit
Description
Vehicle Speed
km/h
Vehicle speed of the moment a particular DTC is detected
Odo/Trip Meter
km
Total mileage (Odometer value) of the moment a particular DTC is detected
Vehicle Condition
SLEEP>LOCK
Power position status of
the moment a particular
DTC is detected
While turning BCM status from low power consumption mode to
normal mode (Power supply position is “LOCK”)
SLEEP>OFF
While turning BCM status from low power consumption mode to
normal mode (Power supply position is “OFF”.)
LOCK>ACC
While turning power supply position from “LOCK” to “ACC”
ACC>ON
While turning power supply position from “ACC” to “IGN”
RUN>ACC
While turning power supply position from “RUN” to “ACC” (Vehicle
is stopping and selector lever is except P position.)
CRANK>RUN
While turning power supply position from “CRANKING” to “RUN”
(From cranking up the engine to run it)
RUN>URGENT
While turning power supply position from “RUN“ to “ACC” (Emer-
gency stop operation)
ACC>OFF
While turning power supply position from “ACC” to “OFF”
OFF>LOCK
While turning power supply position from “OFF” to “LOCK”
OFF>ACC
While turning power supply position from “OFF” to “ACC”
ON>CRANK
While turning power supply position from “IGN” to “CRANKING”
OFF>SLEEP
While turning BCM status from normal mode (Power supply posi-
tion is “OFF”.) to low power consumption mode
LOCK>SLEEP
While turning BCM status from normal mode (Power supply posi-
tion is “LOCK”.) to low power consumption mode
LOCK
Power supply position is “LOCK” (Ignition switch OFF with steer-
ing is locked.)
OFF
Power supply position is “OFF” (Ignition switch OFF with steering
is unlocked.)
ACC
Power supply position is “ACC” (Ignition switch ACC)
ON
Power supply position is “IGN” (Ignition switch ON with engine
stopped)
ENGINE RUN
Power supply position is “RUN” (Ignition switch ON with engine
running)
CRANKING
Power supply position is “CRANKING” (At engine cranking)
IGN Counter
0 - 39
The number of times that ignition switch is turned ON after DTC is detected
• The number is 0 when a malfunction is detected now.
• The number increases like 1
→
2
→
3...38
→
39 after returning to the normal condition
whenever ignition switch OFF
→
ON.
• The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
Service item
Setting item
Setting
CUSTOM A/LIGHT SETTING
MODE 1*
1
Normal
MODE 2
More sensitive setting than normal setting (Turns ON earlier than normal opera-
tion)
MODE 3
More sensitive setting than MODE 2 (Turns ON earlier than MODE 2)
MODE 4
Less sensitive setting than normal setting (Turns ON later than normal operation)
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