Nissan Quest E52. Instruction — part 313
DEF-6
< SYSTEM DESCRIPTION >
COMPONENT PARTS
Rear window defogger
INFOID:0000000009650811
Heats the heating wire with the power supply from the rear window
defogger relay to prevent the rear window from fogging up.
Door mirror defogger
INFOID:0000000009650812
Heats the heating wire with the power supply from the rear window
defogger relay to prevent the door mirror from fogging up.
JMLIA2595GB
JMLIA2596GB
SYSTEM
DEF-7
< SYSTEM DESCRIPTION >
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SYSTEM
System Description
INFOID:0000000009650813
SYSTEM DIAGRAM
*
1
: With auto A/C
*
2
: With instruction A/C
OPERATION DESCRIPTION
• When BCM receives rear window defogger switch signal, BCM transmits rear window defogger ON signal to
rear window defogger relay (integrated in fuse block J/B) for approximately 15 minutes.
• When rear window defogger relay (integrated in fuse block J/B) turns ON, power supply is supplied to rear
window defogger and door mirror defogger (For models with door mirror defogger).
• When rear window defogger and door mirror defogger (For models with door mirror defogger) are operated,
rear window defogger feedback signal is transmitted to A/C auto amp.*
1
or A/C amp.*
2
, and then indicator
lamp of rear window defogger switch is turned ON.
*
1
: With auto A/C
*
2
: With instruction A/C
TIMER FUNCTION
• BCM transmits rear window defogger ON signal to rear window defogger relay (integrated in fuse block J/B)
for approximately 15 minutes when rear window defogger switch is turned ON while ignition switch is ON.
• Timer is cancelled when rear window defogger switch is pressed again during timer operation. BCM stops
the output of rear window defogger ON signal. The same reaction also occurs during timer operation when
ignition switch is turned OFF.
JMLIA2164GB
DEF-8
< SYSTEM DESCRIPTION >
SYSTEM
Circuit Diagram
INFOID:0000000009650814
JMLIA2151GB
DIAGNOSIS SYSTEM (BCM)
DEF-9
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000009957621
APPLICATION ITEM
CONSULT 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
NOTE:
*: For models with automatic air conditioning control system, this diagnosis mode is 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.
Diagnosis mode
Function Description
Work Support
Changes the setting for each system function.
Self Diagnostic Result
Displays the diagnosis results judged by BCM.
CAN Diag Support Monitor
Monitors the reception status of CAN communication viewed from BCM.
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 control system
INT LAMP
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps
FLASHER
×
×
×
Air conditioning control system
AIR CONDITONER
×
×
*
• Intelligent Key system
• Engine start system
INTELLIGENT KEY
×
×
×
Combination switch
COMB SW
×
Body control system
BCM
×
NVIS
IMMU
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Back door open
TRUNK
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS
AIR PRESSURE MONITOR
×
×
×
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