Nissan Frontier D40. Manual — part 200
DEF-4
< FUNCTION DIAGNOSIS >
REAR WINDOW DEFOGGER SYSTEM
FUNCTION DIAGNOSIS
REAR WINDOW DEFOGGER SYSTEM
System Diagram
INFOID:0000000005272641
System Description
INFOID:0000000005272642
Operation Description
• When rear window defogger switch is turned ON while ignition switch is ON, the front air control transmits
rear window defogger switch signal to BCM.
• BCM transmits rear window defogger control signal to IPDM E/R via CAN communication when rear window
defogger operates.
• IPDM E/R turns rear window defogger relay and heated mirror relay (if equipped) ON when rear window
defogger switch signal is received.
• Rear window defogger and door mirror defogger (if equipped) are supplied with power and operate when
rear window defogger relay and heated mirror relay (if equipped) turn ON.
• Rear window defogger ON is displayed when signal is received.
Timer function
• BCM turns rear window defogger relay and heated mirror relay (if equipped) ON for approximately 15 min-
utes when rear window defogger switch is turned ON while ignition switch is ON. It makes rear window
defogger and door mirror defogger (if equipped) operate.
• Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns
rear window defogger relay and heated mirror relay (if equipped) OFF. The same reaction also occurs during
timer operation, if the ignition switch is turned OFF.
INPUT/OUTPUT SIGNAL CHART
ALLIA0559GB
Switch
Input signal to BCM
BCM function
Actuator
Rear window defogger switch
Defogger switch signal
Rear window defogger & door mirror
defogger (if equipped) control
Rear window defogger
Door mirror defogger (if
equipped)
Ignition switch
Ignition signal
REAR WINDOW DEFOGGER SYSTEM
DEF-5
< FUNCTION DIAGNOSIS >
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Component Parts Location
INFOID:0000000005272643
Component Description
INFOID:0000000005272644
AWLIA1690ZZ
1.
BCM M18, M20 (view with lower in-
strument panel LH removed)
2.
Rear window defogger connector
B165
3.
Rear window defogger ground con-
nector B210
4.
IPDM E/R E120, E122, E124
5.
Rear window defogger switch
6.
Door mirror (door mirror defogger)
LH D4, RH D107
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 (if equipped) with the control
signal from BCM.
Rear window defogger switch
• The rear window defogger switch is turned ON.
• 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 (if
equipped)
• Heats the heating wire with the power supply from the heated mirror 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:0000000005550693
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:0000000005550763
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
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
×
Combination switch
COMB SW
×
Immobilizer
IMMU
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Vehicle security system
THEFT ALM
×
×
×
RAP (retained accessory power)
RETAINED PWR
×
×
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS (tire pressure monitoring sys-
tem)
AIR PRESSURE MONITOR
×
×
×
Panic alarm system
PANIC ALARM
×
DIAGNOSIS SYSTEM (BCM)
DEF-7
< FUNCTION DIAGNOSIS >
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ACTIVE TEST
Monitor Item
[Unit]
Description
IGN ON SW [ON/OFF]
Indicates condition of ignition switch in ON position
ACC ON SW [ON/OFF]
Indicates condition of ignition switch in ACC position
REAR DEF SW [ON/OFF]
Displays “Press (ON)/other (OFF)” status determined with the rear window defogger switch
Test Item
Description
REAR DEFOGGER
This test is able to check rear window defogger operation. Rear window defogger operates
when "ON" on CONSULT-III screen is touched
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