Infiniti QX56 (JA60). Manual — part 755
PWC-32
< COMPONENT DIAGNOSIS >
ENCODER
1. Turn ignition switch OFF.
2. Disconnect rear power window motor RH.
3. Turn ignition switch ON.
4. Check voltage between rear power window motor RH connector
D304 terminal 4 and ground.
Is the inspection result normal?
YES
>> GO TO 5
NO
>> GO TO 4
4.
CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window motor RH and rear power win-
dow control unit RH.
3. Check continuity between rear power window motor RH connec-
tor D304 (B) terminal 4 and rear power window control unit RH
connector D309 (A) terminal 5.
Is the inspection result normal?
YES
>> Replace rear power window switch RH. Refer to
119, "Removal and Installation"
NO
>> Repair or replace harness.
5.
CHECK ENCODER GROUND
1. Disconnect rear power window motor RH.
2. Check continuity between rear power window motor RH connec-
tor D304 terminal 6 and ground.
Is the inspection result normal?
YES
>> GO TO 7
NO
>> GO TO 6
6.
CHECK ENCODER GROUND CIRCUIT
1. Disconnect rear power window control unit RH.
2. Check continuity between rear power window motor RH connec-
tor D304 terminal 6 and rear power window control unit RH con-
nector D309 terminal 3.
Is the inspection result normal?
YES
>> Replace rear power window control unit RH.
NO
>> Repair or replace harness.
7.
CHECK REAR POWER WINDOW MOTOR RH LIMIT SWITCH SIGNAL
4 - Ground
: Approx. 10V
LIIA0378E
4 - 5
: Continuity should exist.
LIIA2358E
6 - Ground
: Continuity should exist.
LIIA0380E
6 - 3
: Continuity should exist.
LIIA1383E
ENCODER
PWC-33
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
1. Turn ignition switch ON.
2. Check voltage between rear power window control unit RH con-
nector and ground.
Is the inspection result normal?
YES
>> Limit switch circuit is OK.
NO
>> GO TO 8
8.
CHECK REAR POWER WINDOW SWITCH RH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between rear power window control unit RH har-
ness connector D309 terminal 2 and ground.
Is the inspection result normal?
YES
>> GO TO 9
NO
>> Replace rear power window control unit RH.
9.
CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect rear power window control unit RH.
3. Check continuity between rear power window control unit RH
connector D309 terminal 2 and rear power window motor RH
connector D304 terminal 5.
Is the inspection result normal?
YES
>> Replace rear power window motor RH. Refer to
.
NO
>> Repair or replace harness.
Connector
Terminals
Condition
Voltage (V)
(Approx.)
(+)
(-)
D209
3
Ground
Rear power window RH is be-
tween fully-open and just be-
fore fully-closed position (ON)
0
Rear power window RH is be-
tween just before fully-closed
position and fully-closed posi-
tion (OFF)
5
LIIA2366E
2 - Ground
: Approx. 5V
LIIA2367E
2 - 5
: Continuity should exist.
LIIA1385E
PWC-34
< COMPONENT DIAGNOSIS >
DOOR SWITCH
DOOR SWITCH
Description
INFOID:0000000005147209
Detects door open/close condition and transmits the signal to BCM.
Component Function Check
INFOID:0000000005147210
1.
CHECK FRONT DOOR SWITCH INPUT SIGNAL
Check (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with CONSULT-III. Refer to
27, "RETAINED PWR : CONSULT-III Function (BCM - RETAINED PWR)"
Is the inspection result normal?
YES
>> Front door switch circuit is OK.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000005147211
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
>> Replace BCM. Refer to
BCS-59, "Removal and Installation"
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
DOOR SWITCH
PWC-35
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
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-59, "Removal and Installation"
4.
CHECK FRONT DOOR SWITCH
Check front door switch.
PWC-35, "Component Inspection"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-38, "Intermittent Incident"
.
NO
>> Replace front door switch.
Component Inspection
INFOID:0000000005147212
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
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