Infiniti F50. Manual — part 590
POWER WINDOW SYSTEM
GW-31
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D
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B
GW
Rear Power Window Regulator (LH or RH) Circuit Check
EIS000ZV
1.
CHECK REAR DOOR CONTROL UNIT LH OR RH OUTPUT SIGNAL
1.
Turn ignition switch OFF.
2.
Disconnect rear power window regulator LH or RH.
3.
Turn ignition switch ON.
4.
Check voltage between rear power window regulator LH or RH connector and ground.
OK or NG?
OK
>> Replace rear power window motor LH or RH.
NG
>> GO TO 2
2.
CHECK REAR POWER WINDOW REGULATOR LH OR RH CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect rear door control LH or RH unit connector.
3.
Check continuity between rear power window regulator LH or RH connector D57(LH) or D77(RH) termi-
nals 1, 3 and rear door control unit LH or RH connector D59(LH) or D79(RH) terminals 4, 5.
4.
Check continuity between rear power window regulator LH or
RH connector D59(LH) or D79(RH) terminals 1, 3 and ground.
OK or NG?
OK
>> Replace rear door control unit LH or RH.
NG
>> Repair or replace harness between rear door control
unit LH or RH and rear power window regulator LH or RH.
Connector
Terminals (Wire color)
Condition
Voltage [V]
(Approx.)
(+)
(–)
D57 (LH)
D77 (RH)
1 (L/W)
Ground
Window is
closing
0
Window is
opening
Battery voltage
3 (L/R)
Window is
closing
Battery voltage
Window is
opening
0
PIIB0310E
1 (L/W) – 4 (L/W)
:Continuity should exist.
3 (L/R) – 5 (L/R)
:Continuity should exist.
1 (L/W) – Ground
:Continuity should not exist.
3 (L/R) – Ground
:Continuity should not exist.
PIIA2981E
GW-32
POWER WINDOW SYSTEM
Limit Switch Check (driver side)
EIS000JE
1.
LIMIT SWITCH SIGNAL CHECK
1.
Turn the ignition switch ON.
2.
Check voltage between front power window regulator (driver side) connector and ground.
OK or NG?
OK
>> Limit switch (driver side) circuit is OK.
NG
>> GO TO 2
2.
LIMIT SWITCH GROUND CHECK
1.
Turn ignition switch OFF.
2.
Disconnect front power window regulator (driver side) connector.
3.
Check continuity between front power window regulator (driver side) connector D7 terminal 6 and ground.
OK or NG?
OK
>> GO TO 3
NG
>> Repair or replace harness.
3.
FRONT POWER WINDOW REGULATOR (DRIVER SIDE) CIRCUIT CHECK
1.
Disconnect driver door control unit (door LCU01) connector.
2.
Check continuity between power window regulator (driver side) connector D7 terminal 5 and driver door
control unit (LCU01) connector D8 terminal 7.
3.
Check continuity between power window regulator (driver side)
connector D7 terminal 5 and ground.
OK or NG?
OK
>> GO TO 4.
NG
>> Repair or replace harness between driver door control
unit (LCU01) and front power window regulator (driver
side).
Connector
Terminals (Wire color)
Condition
Voltage [V]
(Approx.)
(+)
(–)
D7 5
(PU)
Ground
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
PIIA2984E
6 (B) – Ground
:Continuity should exist.
PIIA2985E
5 (PU) – 7 (PU)
:Continuity should exist.
5 (PU) – Ground
:Continuity should not exist.
PIIA2983E
POWER WINDOW SYSTEM
GW-33
C
D
E
F
G
H
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M
A
B
GW
4.
LIMIT SWITCH CHECK
1.
Connect driver door control unit (LCU01) connector.
2.
Turn ignition switch ON.
3.
Check voltage between front power window regulator (driver side) connector D7 terminal 5 and ground.
OK or NG
OK
>> Replace front power window regulator (driver side).
NG
>> Replace driver door control unit (LCU01).
Limit Switch Check (passenger side)
EIS003PU
1.
LIMIT SWITCH SIGNAL CHECK
1.
Turn the ignition switch ON.
2.
Check voltage between front power window regulator (passen-
ger side) connector and ground.
OK or NG?
OK
>> Limit switch (passenger side) circuit is OK.
NG
>> GO TO 2
2.
LIMIT SWITCH GROUND CHECK
1.
Turn ignition switch OFF.
2.
Disconnect front power window regulator (passenger side) connector.
3.
Check continuity between front power window regulator (pas-
senger side) connector D37 terminal 6 and ground.
OK or NG?
OK
>> GO TO 3
NG
>> Repair or replace harness.
5 (PU) – Ground
: Approx. 5V
PIIB0306E
Connector
Terminals (Wire color)
Condition
Voltage [V]
(Approx.)
(+)
(–)
D37 5
(PU)
Ground
Passenger side door window
is in a position between fully-
open and just before fully-
closed position (ON)
0
Passenger side door window
is in a position between just
before fully-closed position
and fully-closed position
(OFF)
5
PIIA2987E
6 (B) – Ground
:Continuity should exist.
PIIA2988E
GW-34
POWER WINDOW SYSTEM
3.
CHECK POWER WINDOW MOTOR CIRCUIT
1.
Disconnect passenger door control unit connector.
2.
Check continuity between front power window regulator (pas-
senger side) connector D37 terminal 5 and passenger door con-
trol unit connector D38 terminal 16.
3.
Check continuity between front power window regulator (pas-
senger side) connector D37 terminal 5 and ground.
OK or NG?
OK
>> GO TO 4.
NG
>> Repair or replace harness between passenger door
control unit and front power window regulator (passenger side)
4.
LIMIT SWITCH CHECK
1.
Connect passenger door control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between front power window regulator (passen-
ger side) connector D37 terminal 5 and ground.
OK or NG
OK
>> Replace front power window regulator (passenger side).
NG
>> Replace passenger door control unit.
Limit Switch Circuit Check (rear LH or RH)
EIS003PV
1.
LIMIT SWITCH SIGNAL CHECK
1.
Turn the ignition switch ON.
2.
Check voltage between rear door control unit connector D58(LH) or D78(RH) terminal and ground.
OK or NG?
OK
>> Limit switch rear LH or RH is OK.
NG
>> GO TO 2
5 (PU) – 16 (PU)
:Continuity should exist.
5 (PU) – Ground
:Continuity should not exist.
PIIA2986E
5 (PU) – Ground
: Approx. 5V
PIIB0307E
Connector
Terminals (Wire color)
Condition
Voltage [V]
(Approx.)
(+)
(–)
D58 (LH)
D78 (RH)
16 (OR)
Ground
Rear door window is
between fully-open and just
before fully-closed position
(ON)
0
Rear door window is
between just before fully-
closed position and fully-
closed position (OFF)
5
PIIA2991E
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