Infiniti Q45. Manual — part 608
POWER WINDOW SYSTEM
GW-25
C
D
E
F
G
H
J
K
L
M
A
B
GW
Terminals and Reference Value for BCM
NIS001L8
Terminals and Reference Value for Driver Door Control Unit
NIS000YP
TERMI-
NAL
WIRE
COLOR
Signal name
Signal
input/
output
Measuring condition
VOLTAGE (V)
(Approx.)
Ignition
switch
Operation condition
37
W/G
Front door switch passenger
side
Input
OFF
Door open (ON)
→
close (OFF)
0
→
Battery voltage
56
B
Ground
—
ON
—
0
67
G/W
Data line A-3
—
—
—
—
68
W/B
Ignition switch (ON)
Input
ON
Ignition switch (ON or START posi-
tion)
Battery voltage
69
PU/W
Key switch
Input
OFF
Key Inserted in IGN key cylinder
(ON)
→
key removed from IGN key cylinder
(OFF)
Battery voltage
→
0
105
Y/L
Power source (Fuse)
Input
OFF
—
Battery voltage
113
B
Ground
—
ON
—
0
142
W/R
Front door switch (driver side)
Input
OFF
Door open (ON)
→
close (OFF)
0
→
Battery voltage
TERMI-
NAL
WIRE
COLOR
Signal name
Signal
input/
output
Measuring condition
Voltage (V)
(Approx.)
Ignition
switch
Operation condition
1
G
Encoder pulse sig-
nal
Input
ON
When power window motor
operates
4
W
Encoder power sup-
ply
Output
ON
When ignition switch ON or
power window timer operates
10
5
G/OR
Local communica-
tion
—
ON
When ignition switch ON or
power window timer operates
7
PU
Limit switch signal
Input
ON
Driver side door window is in a
position between fully-open and
just before fully-closed position
(ON)
0
Driver side door window is in a
position between just before
fully-closed position and fully-
closed position (OFF)
5
8
G/W
Data line A-3
—
—
—
—
9
PU/W
Door key cylinder
unlock switch
Input
OFF
OFF (Neutral)
→
ON (Unlock)
5
→
0
10
GY
Door key cylinder
lock switch
Input
OFF
OFF (Neutral)
→
ON (Lock)
5
→
0
11
L/W
Power window
motor DOWN signal
Output
ON
When power window motor
DOWN operates
Battery voltage
OCC3383D
SIIA0591J
GW-26
POWER WINDOW SYSTEM
Terminals and Reference Value for Passenger, Rear LH, RH Door Control Unit
NIS000YQ
(): Passenger door control unit
14
Y/G
Power source
(Fusible link)
Input
OFF
—
Battery voltage
15
B
Ground
—
ON
—
0
18
L/R
Power window
motor UP signal
Output
ON
When power window motor UP
operates
Battery voltage
TERMI-
NAL
WIRE
COLOR
Signal name
Signal
input/
output
Measuring condition
Voltage (V)
(Approx.)
Ignition
switch
Operation condition
TERMI-
NAL
WIRE
COLOR
Signal name
Signal
input/
output
Measuring condition
Voltage (V)
(Approx.)
Ignition
switch
Operation condition
4
L/W
Power window
motor DOWN signal
Output
ON
When power window motor
DOWN operates
Battery voltage
5
L/R
Power window
motor UP signal
Output
ON
When power window motor
UP operates
Battery voltage
6
Y/B
(W/R)
Power source
(FUSE)
Input
OFF
—
Battery voltage
7
B
Ground
—
—
—
0
11
G/OR
Local communica-
tion
—
ON
When ignition switch ON or
power window timer operates
15
W
Encoder power sup-
ply
Output
ON
When ignition switch ON or
power window timer oper-
ates
10
16
OR
(PU)
Limit switch signal
Input
ON
Door window is between
fully-open and just before
fully-closed position (ON)
0
Door window is between just
before fully-closed position
and fully-closed position
(OFF)
5
19
G
Encoder pulse sig-
nal
Input
ON
When power window motor
operates
SIIA0591J
OCC3383D
POWER WINDOW SYSTEM
GW-27
C
D
E
F
G
H
J
K
L
M
A
B
GW
Trouble Diagnosis Symptom Chart
NIS000YR
●
Check that other systems using the signal of the following systems operate normally.
Symptom
Diagnostic procedure.
Refer page
None of the power windows can be operated using any switch.
Check the following.
●
40A fusible link (letter H , located in fuse and
fusible link box)
●
harness for open and short between BCM
and power window main switch (LCU01).
Refer to
●
Power window main switch (LCU01)
●
BCM
—
Driver side power window cannot be operated but other windows
can be operated.
1. Check driver door control unit circuit.
2. Check front power window motor (driver
side) circuit.
3. Replace driver door control unit (LCU1)
Passenger side power window cannot be operated but other win-
dows can be operated.
1. Check passenger door control unit circuit.
2. Check front power window motor (passenger
side) circuit.
3. Replace passenger door control unit.
Rear LH or RH power window cannot be operated but other win-
dows can be operated.
1. Rear door control unit (LH or RH) circuit.
2. Check rear power window motor (LH or RH)
circuit.
3. Replace rear LH or RH door control unit.
Power windows except driver’s side window cannot be operated
using power window main switch.
1. Check communication signal circuit.
2. Replace the power window main switch.
—
Anti-pinch system does not operate normally (driver side).
1. Limit switch adjusting.
2. Check limit switch (driver side)
3. Check encoder circuit (driver side)
4. Door window sliding part malfunction.
●
A foreign material adheres to window glass
or glass run rubber.
●
Glass run rubber wear or deformation.
●
Sash is tilted too much, or not enough.
—
5. Replace driver door control unit (LCU1).
Anti-pinch system does not operate normally (passenger side).
1. Limit switch adjusting.
2. Check limit switch (passenger side).
3. Check encoder circuit (passenger side).
4. Door window sliding part malfunction.
●
A foreign material adheres to window glass
or glass run rubber.
●
Glass run rubber wear or deformation.
●
Sash is tilted too much, or not enough.
—
5. Replace passenger side door control unit.
GW-28
POWER WINDOW SYSTEM
Check Communication Signal Circuit
NIS000YS
1.
CHECK COMMUNICATION CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver door control unit (LCU01) and malfunctioning door control unit connector.
3.
Check continuity between driver door control unit (LCU01) connector terminal 5 and malfunctioning door
control unit connector terminal 11.
4.
Check continuity between driver door control unit (LCU01) connector terminal 5 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace harness
Anti-pinch system does not operate normally (rear RH or LH).
1. Limit switch adjusting.
2. Check limit switch (rear LH or RH).
3. Check encoder circuit (rear LH or RH).
4. Door window sliding part malfunction.
●
A foreign material adheres to window glass
or glass run rubber.
●
Glass run rubber wear or deformation.
●
Sash is tilted too much, or not enough.
—
Power window timer function does not operate properly.
1.Check door switch.
2. Check the following
●
harness for open and short between BCM
and power window main switch (LCU01).
Refer to
●
BCM
—
Symptom
Diagnostic procedure.
Refer page
Passenger door control unit
Terminals
Continuity
Driver door control unit
Passenger door control unit
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
D8
5 (G/OR)
D38
11 (G/OR)
Yes
Rear door control unit LH or RH
Terminals
Continuity
Driver door control unit
Rear LH or RH door control unit
Connector
Terminal
(Wire color)
Connector
Terminal
(Wire color)
D8
5 (G/OR)
D58 (LH)
D78 (RH)
11 (G/OR)
Yes
5 (G/OR) – Ground
: Continuity should not exist.
PIIB0301E
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