Infiniti G37 Coupe. Manual — part 1018
POWER SUPPLY AND GROUND CIRCUIT
PWC-13
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
Is the measurement value within the specification?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between power window main switch harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace harness.
3.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector.
3.
Check continuity between BCM harness connector and power window main switch harness connector.
4.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK BCM OUTPUT SIGNAL
1.
Connect BCM connector.
2.
Turn ignition switch ON.
3.
Check voltage between BCM connector and ground.
Is the measurement value within the specification?
YES
>> GO TO 5.
NO
>> Replace BCM. Refer to
.
Terminal
Voltage (V)
(Approx.)
(+)
(–)
Power window main switch
connector
Terminal
D8
1
Ground
Battery voltage
10
Power window main switch connector
Terminal
Ground
Continuity
D8
15
Existed
BCM connector
Terminal
Power window main switch
connector
Terminal
Continuity
M118
2
D8
1
Existed
3
10
BCM connector
Terminal
Ground
Continuity
M118
2
Not existed
3
Terminals
Voltage (V)
(Approx.)
(+)
(–)
BCM connector
Terminal
M118
2
Ground
Battery voltage
3
PWC-14
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
5.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
>> INSPECTION END
POWER WINDOW SUB-SWITCH
POWER WINDOW SUB-SWITCH : Diagnosis Procedure
INFOID:0000000001693976
1.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect power window sub-switch connector.
3.
Check voltage between power window sub-switch harness connector and ground.
Is the measurement value within the specification?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Check continuity between power window sub-switch harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace harness.
3.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector.
3.
Check continuity between BCM harness connector and power window sub-switch harness connector.
4.
Check continuity between BCM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace harness.
4.
CHECK BCM OUTPUT SIGNAL
1.
Connect BCM connector.
2.
Check voltage between BCM harness connector and ground.
Terminal
Voltage (V)
(Approx.)
(+)
(–)
Power window sub-
switch
Terminal
D38
10
Ground
Battery voltage
Power window sub-switch connector
Terminal
Ground
Continuity
D38
11
Existed
BCM connector
Terminal
Power window sub -switch connec-
tor
Terminal
Continuity
M118
2
D38
10
Existed
BCM connector
Terminal
Ground
Continuity
M118
2
Not existed
POWER SUPPLY AND GROUND CIRCUIT
PWC-15
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
L
M
A
B
PWC
N
O
P
Is the measurement value within the specification?
YES
>> GO TO 5.
NO
>> Replace BCM. Refer to
.
5.
CHECK INTERMITTENT INCIDENT
GI-38, "Intermittent Incident"
.
>> INSPECTION END
Terminals
Voltage (V)
(Approx.)
(+)
(–)
BCM connector
Terminal
M118
2
Ground
Battery voltage
PWC-16
< COMPONENT DIAGNOSIS >
POWER WINDOW MOTOR
POWER WINDOW MOTOR
DRIVER SIDE
DRIVER SIDE : Description
INFOID:0000000001693982
Door glass moves UP/DOWN by receiving the signal from power window main switch.
DRIVER SIDE : Component Function Check
INFOID:0000000001693983
1.
CHECK POWER WINDOW MOTOR CIRCUIT
Check driver side power window motor operation with power window main switch.
Is the inspection result normal?
YES
>> Power window motor is OK.
NO
>> Refer to
PWC-16, "DRIVER SIDE : Diagnosis Procedure"
DRIVER SIDE : Diagnosis Procedure
INFOID:0000000001693984
1.
CHECK POWER WINDOW MAIN SWITCH OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect driver side power window motor connector.
3.
Turn ignition switch ON.
4.
Check voltage between driver side power window motor harness connector and ground.
Is the measurement value within the specification?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CHECK POWER WINDOW MOTOR
Check driver side power window motor.
Refer to
PWC-17, "DRIVER SIDE : Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace driver side power window motor. Refer to
GW-19, "Removal and Installation"
.
3.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect power window main switch connector.
3.
Check continuity between power window main switch harness connector and driver side power window
motor harness connector.
4.
Check continuity between power window main switch harness connector and ground.
Terminal
Power window main switch
condition
Voltage (V)
(Approx.)
(+)
(–)
Driver side power window
motor connector
Terminal
D10
6
Ground
UP
Battery voltage
DOWN
0
3
UP
0
DOWN
Battery voltage
Power window main switch
connector
Terminal
Driver side power window mo-
tor connector
Terminal
Continuity
D8
8
D10
6
Existed
11
3
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