Nissan Sentra. Instruction — part 210
COMPONENT PARTS
DEF-5
< SYSTEM DESCRIPTION >
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DEF
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Component Description
INFOID:0000000009759084
1:
With heated mirrors
Component
Description
BCM
• Operates the rear window defogger with the operation of rear window defogger switch.
• Performs the timer control of rear window defogger.
Rear window defogger relay
• Operates the rear window defogger and the door mirror defogger
1
with the control signal from
BCM.
A/C auto amp
• Displays the rear window defogger ON to the display when detecting the operation of the rear
window defogger.
A/C switch assembly (rear
window defogger switch)
• The rear window defogger switch is turned ON.
Rear window defogger
• 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
1
• Heats the heating wire with the power supply from the rear window defogger relay to prevent
the door mirror from fogging up.
DEF-6
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
System Description
INFOID:0000000009759085
SYSTEM DIAGRAM
OPERATION DESCRIPTION
• A/C control transmits rear window defogger switch signal to A/C auto amp. when rear window defogger
switch turns ON while ignition switch is ON.
• A/C auto amp. transmits rear window defogger switch signal to BCM
• BCM transmits rear window defogger control signal to IPDM E/R via CAN communication.
• IPDM E/R turns rear window defogger relay ON when rear window defogger control signal is received.
• The power is supplied to rear window defogger and door mirror defogger* when rear window defogger relay
is ON.
• When rear window defogger is activated, rear window defogger feedback signal is transmitted to A/C control
via A/C auto amp. and the indicator lamp on rear window defogger switch turns on.
*: With door mirror defogger.
TIMER FUNCTION
• BCM transmits rear window defogger control signal to IPDM E/R for approximately 15 minutes when the rear
window defogger switch turns ON while ignition switch is ON. Then, IPDM E/R activates rear window defog-
ger and door mirror defogger*.
• The timer is cancelled if rear window defogger switch is pressed again during timer operation, and BCM
stops the output of rear window defogger control signal. The same action occurs during timer operation if
ignition switch is OFF.
*: With door mirror defogger.
ALLIA1209GB
DIAGNOSIS SYSTEM (BCM) (WITH INTELLIGENT KEY SYSTEM)
DEF-7
< SYSTEM DESCRIPTION >
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DEF
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DIAGNOSIS SYSTEM (BCM) (WITH INTELLIGENT KEY SYSTEM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000010288762
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode
Description
ECU identification
The BCM part number is displayed.
Self Diagnostic Result
The BCM self diagnostic results are displayed.
Data Monitor
The BCM input/output data is displayed in real time.
Active Test
The BCM activates outputs to test components.
Work support
The settings for BCM functions can be changed.
Configuration
• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN DIAG SUPPORT MNTR
The result of transmit/receive diagnosis of CAN communication is displayed.
System
Sub System
Direct Diagnostic Mode
ECU id
en
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ica
tion
Se
lf Di
ag
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Res
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Dat
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on
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Acti
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T
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W
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su
pp
ort
Co
nf
ig
ur
at
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n
CAN DIAG SUP
P
OR
T MNTR
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 conditioner
AIR CONDITIONER
×
Intelligent Key system
INTELLIGENT KEY
×
×
×
×
Combination switch
COMB SW
×
BCM
BCM
×
×
×
×
×
Immobilizer
IMMU
×
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Trunk open
TRUNK
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
Signal buffer system
SIGNAL BUFFER
×
TPMS
AIR PRESSURE MONITOR
×
×
×
×
DEF-8
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM) (WITH INTELLIGENT KEY SYSTEM)
REAR WINDOW DEFOGGER
REAR WINDOW DEFOGGER : CONSULT Function (BCM - REAR DEFOGGER)
INFOID:0000000010288763
DATA MONITOR
ACTIVE TEST
Monitor Item [Unit]
Description
PUSH SW [On/Off]
Indicates condition of push-button ignition switch.
REAR DEF SW [On/Off]
Indicates condition of rear window defogger switch.
Test Item
Description
REAR DEFOGGER
This test is able to check rear window defogger operation [Off/On].
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