Nissan Qashqai (2007-2010). Manual — part 1457
DEF-4
< FUNCTION DIAGNOSIS >
REAR WINDOW DEFOGGER SYSTEM
FUNCTION DIAGNOSIS
REAR WINDOW DEFOGGER SYSTEM
System Diagram
INFOID:0000000000951258
System Description
INFOID:0000000000951259
OPERATION DESCRIPTION
• BCM detects that the rear window defogger switch is turned ON when the ignition switch is ON, and then
transmits the rear window defogger switch signal to IPDM E/R via CAN communication for approximately 15
minutes.
• IPDM E/R turns rear window defogger relay ON when it receives the rear window defogger switch signal.
Then, it transmits the rear window defogger ON signal to ECM via CAN communication.
• The power is supplied to the rear window defogger and door mirror defogger (with mirror defogger) when the
rear window defogger relay is turned ON.
TIMER FUNCTION
• BCM transmits the rear window defogger switch signal to IPDM E/R for approximately 15 minutes when the
rear window defogger switch is turned ON with the ignition switch ON. Then, IPDM E/R operates the rear
window defogger and door mirror defogger (with mirror defogger).
• The timer is cancelled if the rear window defogger switch is pressed again during timer operation. BCM
stops the output of rear window defogger switch signal. The same reaction also occurs during timer opera-
tion if the ignition switch is turned OFF.
INPUT/OUTPUT SIGNAL CHART
*: With mirror defogger
Component Parts Location
INFOID:0000000000951260
JMLIA0030GB
Switch
Input signal to BCM
BCM function
Acutuator
Rear window defogger switch
Defogger switch signal
Rear window defogger & Door mir-
ror defogger
*
control
Rear window defogger
Door mirror defogger
*
Ignition switch
Ignition signal
REAR WINDOW DEFOGGER SYSTEM
DEF-5
< FUNCTION DIAGNOSIS >
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Component Description
INFOID:0000000000951261
*With mirror defogger
JMLIA0031ZZ
1.
BCM M65,M66,M67
2.
IPDM E/R E10,E12,E14
3.
Rear window defogger switch (built
in AUTO AMP. M53)
4.
Rear window defogger switch (built in
heater control panel M54)
5.
Rear window defogger B58
6.
Rear window defogger D155
A.
Behind glove box
B.
Engine room dash panel (LH)
C.
Behind back door trim finisher
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
*
with the control sig-
nal from IPDM E/R.
Auto amp. / Heter control panel
(Rear window defogger switch)
• The rear window defogger switch is installed.
• Turns the indicator lamp ON when detecting the operation of rear window defogger.
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
*
• Heats the heating wire with the power supply from the rear window defogger relay to
prevent the door mirror from fogging up.
DEF-6
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)
INFOID:0000000001114950
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.
REAR WINDOW DEFOGGER
REAR WINDOW DEFOGGER : CONSULT-III Function (BCM - REAR DEFOGGER)
INFOID:0000000000951263
Data monitor
Diagnosis mode
Function Description
WORK SUPPORT
Changes the setting for each system function.
SELF-DIAG RESULTS
Displays the diagnosis results judged by BCM. Refer to
CAN DIAG SUPPORT MNTR
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
• Enables to read and save the vehicle specification.
• Enables to write the vehicle specification when replacing BCM.
System
Sub system selection item
Diagnosis mode
WORK SUPPORT
DATA MONITOR
ACTIVE TEST
—
BCM
×
Door lock
DOOR LOCK
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Remote keyless entry system
MULTI REMOTE ENT
×
×
×
Exterior lamp
HEAD LAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps
FLASHER
×
×
Air conditioner
AIR CONDITONER
×
Intelligent Key system
INTELLIGENT KEY
×
Combination switch
COMB SW
×
Immobilizer
IMMU
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Trunk open
TRUNK
×
Vehicle security system
THEFT ALM
×
×
×
Signal buffer system
SIGNAL BUFFER
×
×
PTC heater system
PTC HEATER
×
×
DIAGNOSIS SYSTEM (BCM)
DEF-7
< FUNCTION DIAGNOSIS >
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ACTIVE TEST
Monitor Item
Description
REAR DEF SW
Displays “Press (ON)/other (OFF)” status determined with the rear window defogger switch.
IGN ON SW
Indicates [ON/OFF] condition of ignition switch in ON position.
ACC ON SW
Indicates [ON/OFF] condition of ignition switch in ACC position.
Test Item
Description
REAR DEFOGGER
Give a drive signal to the rear window defogger relay to activate it.
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