Infiniti Q45. Manual — part 610

POWER WINDOW SYSTEM

GW-33

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3.

FRONT POWER WINDOW MOTOR (DRIVER SIDE) CIRCUIT CHECK

1.

Disconnect driver door control unit (door LCU01) connector.

2.

Check continuity between power window motor (driver side)
connector D7 terminal 5 and driver door control unit (LCU01)
connector D8 terminal 7.

3.

Check continuity between power window motor (driver side)
connector D7 terminal 5 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness.

4.

DRIVER DOOR CONTROL UNIT OUTPUT SIGNAL CHECK

1.

Connect driver door control unit (LCU01) connector.

2.

Turn ignition switch ON.

3.

Check voltage between front power window motor (driver side)
connector D7 terminal 5 and ground.

OK or NG

OK

>> Check the condition of the harness and the connector.

NG

>> Replace driver door control unit (LCU01).

Check Limit Switch (Passenger Side)

NIS000YX

1.

LIMIT SWITCH SIGNAL CHECK

1.

Turn the ignition switch ON.

2.

Check voltage between front power window motor (passenger side) connector and ground.

OK or NG

OK

>> Limit switch (passenger side) is OK.

NG

>> GO TO 2.

5 (PU) – 7 (PU)

:Continuity should exist.

5 (PU) – Ground

:Continuity should not exist.

PIIB0148E

5 (PU) – Ground

: Approx. 5V

PIIB0306E

Connector

Terminals (Wire color)

Condition

Voltage (V)

(Approx,)

(+)

(–)

D37 5

(PU)

Ground

Passenger side door window
is between fully-open and
just before fully-closed posi-
tion (ON)

0

Passenger side door window
is between just before fully-
closed position and fully-
closed position (OFF)

5

PIIB0150E

GW-34

POWER WINDOW SYSTEM

2.

LIMIT SWITCH GROUND CHECK

1.

Turn ignition switch OFF.

2.

Disconnect front power window motor (passenger side) connector.

3.

Check continuity between front power window motor (passenger
side) connector D37 terminal 6 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3.

CHECK POWER WINDOW MOTOR CIRCUIT

1.

Disconnect passenger door control unit connector.

2.

Check continuity between front power window motor (passenger
side) connector D37 terminal 5 and passenger door control unit
connector D38 terminal 16.

3.

Check continuity between front power window motor (passenger
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 motor (passenger side)

4.

PASSENGER DOOR CONTROL UNIT OUTPUT SIGNAL CHECK

1.

Connect passenger door control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between front power window motor (passenger
side) connector D37 terminal 5 and ground.

OK or NG

OK

>> Check the condition of the harness and the connector.

NG

>> Replace passenger door control unit.

6 (B) – Ground

:Continuity should exist.

PIIB0151E

5 (PU) – 16 (PU)

:Continuity should exist.

5 (PU) – Ground

:Continuity should not exist.

PIIB0152E

5 (PU) – Ground

: Approx. 5V

PIIB0307E

POWER WINDOW SYSTEM

GW-35

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Check Limit Switch Circuit (Rear LH or RH)

NIS000YY

1.

LIMIT SWITCH SIGNAL CHECK

1.

Turn the ignition switch ON.

2.

Check voltage between rear door control unit connector and ground.

OK or NG

OK

>> Limit switch rear LH or RH is OK.

NG

>> GO TO 2.

2.

LIMIT SWITCH GROUND CHECK

1.

Turn ignition switch OFF.

2.

Disconnect rear power window motor LH or RH connector.

3.

Check continuity between rear power window motor LH or RH
connector D57(LH) or D77(RH) terminal 4 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3.

CHECK REAR POWER WINDOW MOTOR CIRCUIT

1.

Disconnect rear door control unit LH or RH connector.

2.

Check continuity between rear power window motor LH or RH
connector D57(LH), D77(RH) terminal 2 and rear door control
unit LH or RH connector D58(LH),D78(RH) terminal 16.

3.

Check continuity between rear power window motor connector
D57(LH), D77(RH) terminal 2 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness.

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

4 (B) – Ground

:Continuity should exist.

PIIB0154E

2 (OR) – 16(OR)

:Continuity should exist.

2 (OR) – Ground

:Continuity should not exist.

PIIB0155E

GW-36

POWER WINDOW SYSTEM

4.

REAR DOOR CONTROL UNIT OUTPUT SIGNAL CHECK

1.

Connect rear door control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between rear door control unit LH or RH connec-
tor D58 (LH), D78 (RH) terminal 16 and ground.

OK or NG

OK

>> Check the condition of the harness and the connector.

NG

>> Replace rear door control unit LH or RH.

Check Encoder Circuit (Driver Side)

NIS000YZ

1.

CHECK FRONT POWER WINDOW MOTOR (DRIVER SIDE) CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between front power window motor (driver side)
connector D7 terminal 4 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2.

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect driver door control unit (LCU01) and front power window motor (driver side) connector.

3.

Check continuity between driver door control unit (LCU01) con-
nector D8 terminal 4 and front power window motor (driver side)
connector D7 terminal 4.

OK or NG

OK

>> Replace driver door control unit (LCU01).

NG

>> Repair or replace harness.

16 (OR) – Ground

:Approx 5V

PIIA2991E

4 (W) – Ground

:Approx. 10V

PIIB0157E

4 (W) – 4 (W)

:Continuity should exist.

PIIB0158E