Infiniti F50. Manual - part 590

 

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Infiniti F50. Manual - part 590

 

 

POWER WINDOW SYSTEM

GW-31

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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

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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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