Nissan Titan A60. Manual — part 221
REAR WINDOW DEFOGGER SYSTEM
DEF-5
< SYSTEM DESCRIPTION >
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SYSTEM DESCRIPTION
REAR WINDOW DEFOGGER SYSTEM
System Diagram
INFOID:0000000006164627
System Description
INFOID:0000000006164628
Operation Description
• When rear window defogger switch is turned ON while ignition switch is ON, the front air control (rear win-
dow defogger switch) transmits rear window defogger switch signal to BCM.
• BCM transmits rear window defogger control signal to IPDM E/R and display unit via CAN communication
when rear window defogger operates.
• IPDM E/R turns rear window defogger relay and heated mirror relay ON when rear window defogger switch
signal is received.
• Rear window defogger and door mirror defogger are supplied with power and operate when rear window
defogger relay and heated mirror relay turn ON.
• Rear window defogger ON is displayed when signal is received.
Timer function
• BCM turns rear window defogger relay and heated mirror relay ON for approximately 15 minutes when rear
window defogger switch is turned ON while ignition switch is ON. It makes rear window defogger and door
mirror defogger 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 OFF. The same reaction also occurs during timer opera-
tion, if the ignition switch is turned OFF.
INPUT/OUTPUT SIGNAL CHART
ABLIA2841GB
Switch
Input signal to BCM
BCM function
Actuator
Rear window defogger switch
Defogger switch signal
Rear window defogger and door
mirror defogger control (if equipped)
Rear window defogger
Door mirror defogger (if
equipped)
Ignition switch
Ignition signal
DEF-6
< SYSTEM DESCRIPTION >
REAR WINDOW DEFOGGER SYSTEM
Component Parts Location
INFOID:0000000006164629
Component Description
INFOID:0000000006164630
ALLIA0560ZZ
1.
A. Steering column
B. BCM M18, M20 (view with instrument panel
removed)
2. Front air control
M49, M50 (with auto A/C)
M176, M177 (with manual 3 control
dial system)
M180, M181 (with manual 2 control
dial system)
3. Rear window defogger connectors
B78, B81
4.
IPDM E/R E120, E122, E124
5. Rear power drop glass motor (def
cut-off switch) B80
6. Rear window defogger cut-off relay
M187
7.
Door mirror (door mirror defogger) (if equipped)
LH D4 (with automatic drive positioner)
LH D6 (without automatic drive positioner)
RH D107 (with automatic drive positioner)
RH D106 (without automatic drive positioner)
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 heated mirror relay (if equipped) with the
control signal from BCM.
Front air control (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 pre-
vent 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.
DIAGNOSIS SYSTEM (BCM)
DEF-7
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)
INFOID:0000000006570524
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
REAR WINDOW DEFOGGER
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
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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
HEADLAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps FLASHER
×
×
Air conditioner
AIR CONDITIONER
×
Combination switch
COMB SW
×
BCM
BCM
×
×
×
×
×
Immobilizer
IMMU
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
×
×
Signal buffer system
SIGNAL BUFFER
×
×
TPMS
AIR PRESSURE MONITOR
×
×
×
×
Panic alarm system
PANIC ALARM
×
DEF-8
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (BCM)
REAR WINDOW DEFOGGER : CONSULT-III Function (BCM - REAR DEFOGGER)
INFOID:0000000006570525
DATA MONITOR
ACTIVE TEST
Monitor Item [Unit]
Description
IGN ON SW [On/Off]
Indicates condition of ignition switch ON position.
ACC ON SW [On/Off]
Indicates condition of ignition switch ACC position.
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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