Infiniti M45 (Y34). Manual — part 583
POWER WINDOW SYSTEM
GW-43
C
D
E
F
G
H
J
K
L
M
A
B
GW
Driver Door Control Unit Circuit Check
AIS001N8
1.
CHECK POWER SUPPLY CIRCUIT
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 control unit
(LCU01) and fuse.
2.
CHECK GROUND CIRCUIT
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
AIS001NR
1.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect passenger door control unit connector.
3.
Check voltage between passenger door control unit connector D38 terminal 10 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 control
unit and fuse.
14 (Y/G) – Ground
: Battery voltage
PIIA2703E
15 (B) – Ground
: Continuity should exist.
PIIA2704E
10 (W/R) – Ground
: Battery voltage
PIIA2848E
GW-44
POWER WINDOW SYSTEM
2.
CHECK GROUND CIRCUIT
Check continuity between passenger door control unit connector D38 terminal 11 and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair or replace harness.
Rear Door Control Unit (LH or RH) Circuit Check
AIS001NS
1.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect rear door control unit connector.
3.
Check voltage between rear door control unit LH or RH connector D58 or D78 terminal 10 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 control unit
LH or RH and fuse.
2.
CHECK GROUND CIRCUIT
Check continuity between rear door control unit LH or RH connector D58 or D78 terminal 11 and ground.
OK or NG
OK
>> INSPECTION END
NG
>> Repair or replace harness.
11 (B) – Ground
: Continuity should exist.
PIIA2849E
10 (Y/B) – Ground
: Battery voltage
PIIA2850E
11 (B) – Ground
: Continuity should exist.
PIIA2851E
POWER WINDOW SYSTEM
GW-45
C
D
E
F
G
H
J
K
L
M
A
B
GW
Door Switch Check
AIS001NU
1.
CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
●
Check door switch in “DATE MONITOR” mode with CONSULT-II.
Without CONSULT-II
●
Check all door switches in switch monitor mode.
Refer to Remote keyless entry system,
.
OK or NG
OK
>> Door switch is OK.
NG
>> GO TO 2.
2.
CHECK DOOR SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect door switch connector.
3.
Check continuity between following terminals and ground.
OK or NG
OK
>> Check harness for open and short between door switch
and BCM.
NG
>> Check door switch ground condition.
Door Key Cylinder Switch Check
AIS002MV
1.
CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check voltage between driver door control unit (LCU01) connector and ground.
OK or NG
OK
>> Further inspection is necessary. Refer to symptom
chart.
NG
>> GO TO 2.
When door is opened
: DOOR SW ON
When door is closed
: DOOR SW OFF
PIIA2464E
Door switch connector
Terminals
(Wire color)
Condition
Continuity
Front door switch
(driver side)
B20
1 (R/Y) – Ground
Pressed
No
Released
Yes
Front door switch
(passenger side)
B220
1 (LG) – Ground
Pressed
No
Released
Yes
PIIB0305E
Connector
Terminals (Wire color)
Key position
Voltage (V)
(Approx.)
(+)
(–)
D8
9 (PU/W)
Ground
Neutral/Unlock
5
Lock
0
10 (GY)
Neutral/Lock
5
Unlock
0
PIIA4717E
GW-46
POWER WINDOW SYSTEM
2.
CHECK DOOR KEY CYLINDER SWITCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect driver door control unit (LCU01) and front door key cylinder switch connector.
3.
Check continuity between driver door control unit (LCU01) connector D8 terminal 9, 10 and front door key
cylinder switch connector D12 terminals 1, 3.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between driver door control
unit (LCU01) and front door key cylinder switch.
3.
CHECK DOOR KEY CYLINDER SWITCH GROUND
Check continuity between front door key cylinder switch connector
D12 terminal 2 and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Repair or replace harness.
4.
CHECK DOOR KEY CYLINDER SWITCH
Check continuity between front door key cylinder switch terminal 1, 3
and 2.
OK or NG
OK
>> Check the condition of the harness and the connector.
NG
>> Replace door key cylinder switch.
9 (PU/W) – 1 (PU/W)
: Continuity should exist.
10 (GY) – 3 (GY)
: Continuity should exist.
PIIB0552E
2 (B) – Ground
: Continuity should exist.
PIIA3354E
Terminals
Key position
Continuity
1
2
Neutral/Lock
No
Unlock
Yes
3
Neutral/Unlock
No
Lock
Yes
PIIB0553E
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