Nissan Xterra. Manual — part 179
DEF-1
DRIVER CONTROLS
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SECTION
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CONTENTS
DEFOGGER
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORKFLOW . . ..
Repair Work Flow . . . . . . . . . . . . . ..
SYSTEM DESCRIPTION . . . . . . . ..
REAR WINDOW DEFOGGER SYSTEM . . . .
System Diagram . . . . . . . . . . . . . ....
System Description . . . . . . . . . . . . ...
Component Parts Location . . . . . . . . . ....
Component Description . . . . . . . . . . .....
DIAGNOSIS SYSTEM (BCM) . . . . . . . .
COMMON ITEM . . . . . . . . . . . . . . ...
COMMON ITEM : CONSULT Function (BCM -
COMMON ITEM) . . . . . . . . . . . . . ...
REAR DEFOGGER . . . . . . . . . . . . .....
REAR DEFOGGER : CONSULT Function (BCM -
REAR DEFOGGER) . . . . . . . . . . . .....
DTC/CIRCUIT DIAGNOSIS . . . . . . ..
REAR WINDOW DEFOGGER SWITCH . . . .
Description . . . . . . . . . . . . . . . ....
Component Function Check . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .....
REAR WINDOW DEFOGGER RELAY . . . ...
Description . . . . . . . . . . . . . . . ....
Component Function Check . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . .....
REAR WINDOW DEFOGGER POWER SUP-
PLY AND GROUND CIRCUIT . . . . . . .
Description . . . . . . . . . . . . . . . ..
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . .
DOOR MIRROR DEFOGGER LH . . . . . ..
Description . . . . . . . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
DOOR MIRROR DEFOGGER RH . . . . . .
Description . . . . . . . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
Component Inspection . . . . . . . . . . . .
ECU DIAGNOSIS INFORMATION . . . ..
BCM (BODY CONTROL MODULE) . . . . .
Reference Value . . . . . . . . . . . . . ..
Terminal Layout . . . . . . . . . . . . . ...
Physical Values . . . . . . . . . . . . . ...
WIRING DIAGRAM . . . . . . . . . ..
REAR WINDOW DEFOGGER . . . . . . ..
Wiring Diagram . . . . . . . . . . . . . .
SYMPTOM DIAGNOSIS . . . . . . . ..
REAR WINDOW DEFOGGER AND DOOR
MIRROR DEFOGGER DO NOT OPERATE. .
Diagnosis Procedure . . . . . . . . . . . ...
REAR WINDOW DEFOGGER DOES NOT
OPERATE BUT BOTH OF DOOR MIRROR
DEFOGGER OPERATE. . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
DRIVER SIDE DOOR MIRROR DEFOGGER
DOES NOT OPERATE. . . . . . . . . . .
DEF-2
PASSENGER SIDE DOOR MIRROR DEFOG-
GER DOES NOT OPERATE. . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ..
PRECAUTION . . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . . .
Handling for Adhesive and Primer . . . . . . ..
REMOVAL AND INSTALLATION . . . ..
REAR WINDOW DEFOGGER . . . . . . ...
Filament Check . . . . . . . . . . . . . ...
DIAGNOSIS AND REPAIR WORKFLOW
DEF-3
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Repair Work Flow
INFOID:0000000009484745
DETAILED FLOW
1.
LISTEN TO CUSTOMER COMPLAINT
Listen to customer complaint. Get detailed information about the conditions and environment when the symp-
tom occurs.
>> GO TO 2
2.
VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check.
>> GO TO 3
3.
GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis.
>> GO TO 4
4.
REPAIR OR REPLACE
Repair or replace the specific parts.
>> GO TO 5
5.
FINAL CHECK
Final check.
Is inspection result normal?
YES
>> Inspection End
NO
>> Check for intermittent incident. Refer to
DEF-4
< SYSTEM DESCRIPTION >
REAR WINDOW DEFOGGER SYSTEM
SYSTEM DESCRIPTION
REAR WINDOW DEFOGGER SYSTEM
System Diagram
INFOID:0000000009484747
System Description
INFOID:0000000009484748
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
ALLIA1045GB
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
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