Nissan Xterra. Manual — part 556
DOOR SWITCH
PWC-27
< DTC/CIRCUIT DIAGNOSIS >
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PWC
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DOOR SWITCH
Description
INFOID:0000000009483660
Detects door open/close condition and transmits the signal to BCM.
Component Function Check
INFOID:0000000009483661
1.
CHECK FRONT DOOR SWITCH INPUT SIGNAL
Check (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with CONSULT. Refer to
"RETAINED PWR : CONSULT Function (BCM - RETAINED PWR)"
Is the inspection result normal?
YES
>> Front door switch circuit is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000009483662
Regarding Wiring Diagram information, refer to
.
1.
CHECK FRONT DOOR SWITCH
Check voltage between BCM connector and ground.
Is the measurement value within the specification?
YES
>> Door switch circuit is OK.
NO
>> GO TO 2
2.
CHECK HARNESS CONTINUITY
Monitor item
Condition
DOOR SW-DR
OPEN
: ON
CLOSE
: OFF
DOOR SW-AS
OPEN
: ON
CLOSE
: OFF
Terminals
Door condition
Voltage (V)
(Approx.)
(+)
(–)
BCM
connector
Terminal
M18
12
Ground
Front door
RH
OPEN
0
CLOSE
Battery voltage
M19
47
Front door
LH
OPEN
0
CLOSE
Battery voltage
LIIA0946E
PWC-28
< DTC/CIRCUIT DIAGNOSIS >
DOOR SWITCH
1. Turn ignition switch OFF.
2. Disconnect BCM and front door switch.
3. Check continuity between BCM connector and front door switch
connector.
4. Check continuity between front door switch connector and
ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
Is the measurement value within the specification?
YES
>> GO TO 4
NO
>> Replace BCM. Refer to
BCS-50, "Removal and Installation"
4.
CHECK FRONT DOOR SWITCH
Check front door switch.
PWC-28, "Component Inspection"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-40, "Intermittent Incident"
.
NO
>> Replace front door switch.
Component Inspection
INFOID:0000000009483663
1.
CHECK FRONT DOOR SWITCH
Check front door switches.
Is the inspection result normal?
YES
>> Front door switch is OK.
NO
>> Replace front door switch.
BCM connector
Terminal
Front door switch
connector
Terminal
Continuity
M18
12
RH: B108
2
Yes
M19
47
LH: B8
Front door switch
connector
Terminal
Ground
Continuity
B8 (LH)
2
No
B108 (RH)
LIIA0947E
Terminal
Voltage (V)
(Approx.)
(+)
(–)
BCM connector
Terminal
M18
12
Ground
Battery voltage
M19
47
LIIA0946E
Terminal
Door switch
Continuity
Door switches
2
Ground part of
door switch
Pressed
No
Released
Yes
LIIA2377E
POWER WINDOW LOCK SWITCH
PWC-29
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
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POWER WINDOW LOCK SWITCH
Description
INFOID:0000000009483664
Ground circuit of main power window and door lock/unlock switch shuts off if power window lock switch of
main power window and door lock/unlock switch is operated. This inhibits all operation, except for the main
switch.
Component Function Check
INFOID:0000000009483665
1.
CHECK POWER WINDOW LOCK SIGNAL
Exchanges for a normal main power window and door lock/unlock switch, and operation is checked.
Does power window lock operate?
YES
>> Replace main power window and door lock/unlock switch. Refer to
.
NO
>> Check condition of harness and connector.
PWC-30
< ECU DIAGNOSIS INFORMATION >
POWER WINDOW SYSTEM
ECU DIAGNOSIS INFORMATION
POWER WINDOW SYSTEM
Terminal Layout
INFOID:0000000009483666
Physical Values
INFOID:0000000009483667
LIIA2454E
Terminal
Wire Color
Item
Condition
Voltage (V)
(Approx.)
2
G/Y
Front power window motor RH
DOWN signal
When power window motor is op-
erated DOWN
Battery voltage
3
L/W
Front power window motor RH UP
signal
When power window motor is op-
erated UP
Battery voltage
5
W/R
RAP signal
When ignition switch ON
Battery voltage
Within 45 seconds after ignition
switch is turned to OFF
Battery voltage
More than 45 seconds after igni-
tion switch is turned to OFF
0
When front door LH or RH open
or power window timer operates
0
6
G/R
Front power window motor LH UP
signal
When power window motor is op-
erated UP
Battery voltage
7
G/W
Front power window motor LH
DOWN signal
When power window motor is op-
erated DOWN
Battery voltage
8
G/B
Rear power window RH
UP signal
When rear RH switch in
main power window and door
lock/unlock switch is operated
UP
Battery voltage
9
R
Rear power window RH
DOWN signal
When rear RH switch in
main power window and door
lock/unlock switch is operated
DOWN
Battery voltage
14
B
Ground
—
0
15
R/B
Rear power window LH
UP signal
When rear LH switch in
main power window and door
lock/unlock switch is operated
UP
Battery voltage
16
R/Y
Rear power window LH
DOWN signal
When rear LH switch in
main power window and door
lock/unlock switch is operated
DOWN
Battery voltage
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