Nissan Xterra. Manual — part 550
DIAGNOSIS AND REPAIR WORKFLOW
PWC-3
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000009483625
DETAILED FLOW
1.
OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.
>> GO TO 2
2.
REPRODUCE THE MALFUNCTION INFORMATION
Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.
>> GO TO 3
3.
IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”
Use “Symptom diagnosis” from the symptom inspection result in step 2 and then identify where to start per-
forming the diagnosis based on possible causes and symptoms.
>> GO TO 4
4.
IDENTIFY THE MALFUNCTIONING PARTS WITH “DTC/CIRCUIT DIAGNOSIS”
Perform the diagnosis with “DTC/Circuit diagnosis” of the applicable system.
>> GO TO 5
5.
REPAIR OR REPLACE THE MALFUNCTIONING PARTS
Repair or replace the specified malfunctioning parts.
>> GO TO 6
6.
FINAL CHECK
Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 2.
Are the malfunctions corrected?
YES
>> Inspection End.
NO
>> GO TO 3
PWC-4
< SYSTEM DESCRIPTION >
POWER WINDOW SYSTEM
SYSTEM DESCRIPTION
POWER WINDOW SYSTEM
System Diagram
INFOID:0000000009483626
FRONT WINDOW ANTI-PINCH SYSTEM
System Description
INFOID:0000000009483627
MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH
INPUT/OUTPUT SIGNAL CHART
POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH
INPUT/OUTPUT SIGNAL CHART
ALKIA1379GB
Item
Input signal to main power window and
door lock/unlock switch
Main power window and door
lock/unlock switch function
Actuator
Main power window
and door lock/unlock
switch
All power window motor UP/DOWN
signal
Power window control
Power window motors
Power window and
door lock/unlock
switch RH
Front power window motor RH UP/
DOWN signal
Front power window motor RH
Rear power window
switch
Rear power window motor UP/DOWN
signal
Rear power window motor
BCM
RAP signal
Power window motors
POWER WINDOW SYSTEM
PWC-5
< SYSTEM DESCRIPTION >
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POWER WINDOW OPERATION
• Power window system is operable during the retained power operation timer after turning ignition switch ON
and OFF.
• Main power window and door lock/unlock switch can open/close all windows.
• Power window and door lock unlock switch RH & rear power window switches LH and RH can open/close
the corresponding windows.
POWER WINDOW AUTO DOWN OPERATION (FRONT LH)
• AUTO DOWN operation can be performed when main power window turns to AUTO.
RETAINED POWER OPERATION
• Retained power operation is an additional power supply function that enables power window system to oper-
ate during the 45 seconds even when ignition switch is turned OFF
Retained power function cancel conditions
• Front door CLOSE (door switch OFF)
→OPEN (door switch ON).
• When ignition switch is ON.
• When timer time passes. (45 seconds)
POWER WINDOW LOCK
Ground circuit inside main power window and door lock/unlock switch shuts off when power window lock
switch is ON. This inhibits power window switch operation except with the main power window and door lock/
unlock switch.
Component Parts Location
INFOID:0000000009483628
Item
Input signal to front power window
switch
Front power window switch
function
Actuator
Power window and
door lock/unlock
switch RH
Front power window motor RH UP/
DOWN signal
Power window control
Front power window motor RH
BCM
RAP signal
ALKIA1382ZZ
PWC-6
< SYSTEM DESCRIPTION >
POWER WINDOW SYSTEM
Component Description
INFOID:0000000009483629
FRONT WINDOW ANTI-PINCH SYSTEM
1.
Main power window and door lock/
unlock switch D7
2.
BCM M18, M19, M20 (view with low-
er instrument panel LH removed)
3.
Power window and door lock/unlock
switch RH D105
4.
Front power window motor LH D9,
RH D104
5.
Front door switch LH B8, RH B108
6.
A. Rear power window switch LH
D203, RH D303
B. Rear power window motor LH
D204, RH D304
Component
Function
BCM
• Supplies power supply to power window switch.
• Controls retained power.
Main power window and door lock/un-
lock switch
Directly controls all power window motor of all doors.
Power window and door lock/unlock
switch RH
Controls front power window motor RH.
Rear power window switch
Controls rear power window motors LH and RH.
Front power window motor LH
Starts operating with signals from main power window and door lock/unlock switch.
Front power window motor RH
Starts operating with signals from main power window and door lock/unlock switch &
power window and door lock/unlock switch RH.
Rear power window motor
Starts operating with signals from main power window and door lock/unlock switch &
rear power window switch.
Front door switch LH or RH
Detects door open/close condition and transmits to BCM.
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