Infiniti F50. Manual — part 592
POWER WINDOW SYSTEM
GW-39
C
D
E
F
G
H
J
K
L
M
A
B
GW
5.
CHECK ENCODER CIRCUIT
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 19 and front power window
regulator (passenger side) connector D37 terminal 3.
OK or NG?
OK
>> Replace front power window motor (passenger side).
NG
>> Repair or replace harness between passenger door
control unit and front power window regulator (passen-
ger side).
Encoder Circuit Check (rear LH or RH)
EIS003PX
1.
CHECK REAR POWER WINDOW REGULATOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect rear power window regulator LH or RH connector.
3.
Turn ignition switch ON.
4.
Check voltage between rear power window regulator LH or RH connector D57(LH) or D77(RH) terminal 6
and ground.
OK or NG?
OK
>> GO TO 3
NG
>> GO TO 2
2.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect rear door control unit LH or RH and rear power window regulator LH or RH connector.
3.
Check continuity between rear door control unit LH or RH connector D58(LH) or D78(RH) terminal 15 and
rear power window regulator LH or RH connector D57(LH) or D77(RH) terminal 6.
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.
19 (G) – 3 (G)
:Continuity should exist.
PIIA3003E
6 (W) – Ground
:Approx. 10V
PIIA3004E
15 (W) – 6 (W)
:Continuity should exist.
PIIA3005E
GW-40
POWER WINDOW SYSTEM
3.
CHECK ENCODER GROUND
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 4
NG
>> Repair or replace harness.
4.
CHECK ENCODER SIGNAL
1.
Connect rear power window regulator LH or RH connector.
2.
Turn ignition switch ON.
3.
Check the signal between rear door control unit LH or RH 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 rear door control unit LH or RH and rear power window regulator LH or RH connector.
3.
Check continuity between rear door control unit LH or RH connector D58(LH) or D78(RH) terminal 19 and
rear power window regulator LH or RH connector D57(LH) or D77(RH) terminal 5.
OK or NG?
OK
>> Replace rear power window motor LH or RH.
NG
>> Repair or replace harness between rear door control
unit LH or RH and rear power window regulator LH or
RH.
4 (B) – Ground
:Continuity should exist.
PIIA3006E
Connector
Terminals (Wire color)
Condition
Signal
(+)
(–)
D58(LH)
D78(RH)
19(G)
Ground
Opening
PIIA3007E
OCC3383D
19 (G) – 5 (G)
:Continuity should exist.
PIIA3008E
POWER WINDOW SYSTEM
GW-41
C
D
E
F
G
H
J
K
L
M
A
B
GW
Driver Door Control Unit Circuit Check
EIS003PY
1.
POWER SUPPLY CIRCUIT CHECK
1.
Turn ignition switch OFF.
2.
Disconnect driver door control unit (LCU01) connector.
3.
Check voltage between driver door control unit (LCU01) connector D8 terminal 14 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Check the following.
●
40A fusible link (letter H. located in fuse and fusible
link box).
●
Harness for open or short between driver door control
unit (LCU01) and fuse.
2.
GROUND CIRCUIT CHECK
Check continuity between driver door control unit (LCU01) connector D8 terminal 15 and ground.
OK or NG
OK
>> INSPECTION END.
NG
>> Repair or replace harness.
Passenger Door Control Unit Circuit Check
EIS003PZ
1.
POWER SUPPLY CIRCUIT CHECK
1.
Turn ignition switch OFF.
2.
Disconnect passenger door control unit connector.
3.
Check voltage between passenger door control unit connector D39 terminal 6 and ground.
OK or NG
OK
>> GO TO 2.
NG
>> Check the following.
●
40A fusible link (letter H. located in fuse and fusible
link box).
●
Harness for open or short between passenger door
control unit and fuse.
14 (Y/G) – Ground
:Battery voltage
PIIA2703E
15 (B) – Ground
:Continuity should exist.
PIIA2704E
6 (W/R) – Ground
:Battery voltage
PIIA3433E
GW-42
POWER WINDOW SYSTEM
2.
GROUND CIRCUIT CHECK
Check continuity between passenger door control unit connector D39 terminal 7 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
3.
COMMUNICATION CIRCUIT CHECK
1.
Disconnect driver door control unit connector.
2.
Check continuity between driver door control unit connector D8
terminal 5 and passenger door control unit connector D38 termi-
nal 11.
OK or NG
OK
>> INSPECTION END.
NG
>> Repair or replace harness between door control unit and
passenger door control unit.
Rear Door Control Unit Circuit Check
EIS003Q0
1.
POWER SUPPLY CIRCUIT CHECK
1.
Turn ignition switch OFF.
2.
Disconnect rear door control unit LH or RH connector.
3.
Check voltage between rear door control unit LH or RH connector D59(LH) or D79(RH) terminal 6 and
ground.
OK or NG
OK
>> GO TO 2.
NG
>> Check the following.
●
40A fusible link (letter H. located in fuse and fusible
link box).
●
Harness for open or short between rear door control
unit LH or RH and fuse.
7 (B) – Ground
:Continuity should exist.
PIIA3434E
5 (G/OR) – 11 (G/OR)
:Continuity should exist.
PIIA2977E
6 (W/R) – Ground
:Battery voltage
PIIA3435E
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