Infiniti F50. Manual - part 591

 

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Infiniti F50. Manual - part 591

 

 

POWER WINDOW SYSTEM

GW-35

C

D

E

F

G

H

J

K

L

M

A

B

GW

2. 

LIMIT SWITCH GROUND CHECK

1.

Turn ignition switch OFF.

2.

Disconnect rear power window regulator LH or RH connector.

3.

Check continuity between rear power window regulator 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 REGULATOR CIRCUIT

1.

Disconnect rear door control unit LH or RH connector.

2.

Check continuity between rear power window regulator 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 regulator connec-
tor D57(LH), D77(RH) terminal 2 and ground.

OK or NG?

OK

>> GO TO 4.

NG

>> Repair or replace harness between rear door control

unit LH or RH and rear power window regulator LH or
RH.

4. 

LIMIT SWITCH 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

>> Replace rear power window regulator LH or RH.

NG

>> Replace rear door control unit LH or RH.

4 (B) – Ground

:Continuity should exist.

PIIA2990E

2 (OR) – 16(OR)

:Continuity should exist.

2 (OR) – Ground

:Continuity should not exist.

PIIA2989E

16 (OR) – Ground

:Approx 5V

PIIA2991E

GW-36

POWER WINDOW SYSTEM

Encoder Circuit Check (driver side)

EIS000JG

1. 

CHECK FRONT POWER WINDOW REGULATOR (DRIVER SIDE) CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between front power window regulator (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 regulator (driver side) connector.

3.

Check continuity between driver door control unit (LCU01) connector D8 terminal 4 and front power win-
dow regulator (driver side) connector D7 terminal 4.

OK or NG?

OK

>> Replace driver door control unit (LCU01).

NG 

>> Repair or replace harness between driver door control

unit (LCU01) and front power window regulator (driver
side).

3. 

CHECK ENCODER GROUND

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 4

NG

>> Repair or replace harness.

4 (W) – Ground

:Approx. 10V

PIIA2994E

4 (W) – 4 (W)

:Continuity should exist.

PIIA2995E

6 (B) – Ground

:Continuity should exist.

PIIA2996E

POWER WINDOW SYSTEM

GW-37

C

D

E

F

G

H

J

K

L

M

A

B

GW

4. 

CHECK ENCODER SIGNAL 

1.

Connect front power window regulator (driver side) connector.

2.

Turn ignition switch ON.

3.

Check the signal between driver door control unit (LCU01) connector and ground with oscilloscope.

OK or NG?

OK

>> Encoder function is OK.

NG

>> GO TO 5

5. 

CHECK ENCODER CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between driver door control unit (LCU01) connector D8 terminal 1 and front power win-
dow regulator (driver side) connector D7 terminal 3. 

OK or NG?

OK

>> Replace front power window motor (driver side).

NG

>> Repair or replace harness between driver door control

unit (LCU01) and front power window regulator (driver
side).

Encoder Circuit Check (passenger side)

EIS003PW

1. 

CHECK FRONT POWER WINDOW REGULATOR (PASSENGER SIDE) CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between front power window regulator (passenger side) connector D37 terminal 4 and
ground.

OK or NG?

OK

>> GO TO 3

NG

>> GO TO 2

Terminals

Condition

Signal

(+)

(–)

Connector

Terminal

(Wire color)

Ground

D8

1(G)

Opening

PIIA2997E

OCC3383D

1 (G) – 3 (G)

:Continuity should exist.

PIIA2998E

4 (W) – Ground

:Approx. 10V

PIIA2999E

GW-38

POWER WINDOW SYSTEM

2. 

CHECK HARNESS CONTINUITY 

1.

Turn ignition switch OFF.

2.

Disconnect passenger door control unit and front power window regulator (passenger side) connector.

3.

Check continuity between passenger door control unit connector D38 terminal 15 and front power window
regulator (passenger side) connector D37 terminal 4.

OK or NG?

OK

>> Replace passenger door control unit.

NG 

>> Repair or replace harness between passenger door

control unit and front power window regulator (passen-
ger side).

3. 

CHECK ENCODER GROUND

1.

Turn ignition switch OFF.

2.

Disconnect front power window regulator (passenger side) connector.

3.

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

OK or NG?

OK

>> GO TO 4

NG

>> Repair or replace harness.

4. 

CHECK ENCODER SIGNAL 

1.

Connect front power window regulator (passenger side) connector.

2.

Turn ignition switch ON.

3.

Check the signal between passenger door control unit connector and ground with oscilloscope.

OK or NG?

OK

>> Encoder function is OK.

NG

>> GO TO 5

15 (W) – 4 (W)

:Continuity should exist.

PIIA3000E

6 (B) – Ground

:Continuity should exist.

PIIA3001E

Terminals

Condition

Signal

(+)

(–)

Connector

Terminal

(Wire color)

Ground

D38

19(G)

Opening

PIIA3002E

OCC3383D

 

 

 

 

 

 

 

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