bcm INFINITI FX35 2007 Service Manual

POWER WINDOW SYSTEM GW-19
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Revision: 2006 July 2007 FX35/FX45
POWER WINDOW SERIAL LINK
Power window main switch, front power window switch (passenger side), and BCM transmit and receive the
signal by power window serial link.
The under mentioned signal is transmitted from BCM to power window main switch and front power window
switch (passenger side)

Keyless power window down signal.
The under mentioned signal is transmitted from power window main switch to front power window switch (pas-
senger side)

Front passenger side door window operation signal.

Power window control by key cylinder switch signal.

Power window lock signal.

Retained power operation signal.
POWER WINDOW LOCK
The power window lock is designed to lock operation of all windows except for driver side door window.
When the lock position, ground of the rear power window switches in the power window main switch is discon-
nected. The power window lock signal is transmitted to front power window switch (passenger side) by power
window serial link. This prevents the power window motors from operating.
RETAINED POWER OPERATION
When the ignition switch is turned to the OFF position from ON or START position.
Power is supplied for 45 seconds

through BCM terminal 53

to power window main switch terminal 10

to rear power window switch (LH and RH) terminals 1.
When power and ground are supplied, the BCM continues to be energized, and the power window can be
operated.
The retained power operation is canceled when the driver or passenger side door is opened.
RAP signal period can be changed by CONSULT-II. Refer to GW-29, "
CONSULT-II Function (BCM)" .
ANTI-PINCH SYSTEM
Power window main switch and front power window switch (passenger side) monitors the power window motor
operation and the power window position (full closed or other) for driver side and passenger side power win-
dow by the signals from encoder and limit switch in front power window motor (driver side and passenger
side).
When power window main switch detects interruption during the following close operation,

automatic close operation when ignition switch is in the “ON” position

automatic close operation during retained power operation

manual close operation during retained power operation
power window main switch or front power window switch (passenger side) controls each power window motor
for open and the power window will be lowered about 150 mm (5.91 in).
POWER WINDOW CONTROL BY THE KEY CYLINDER SWITCH
When ignition key switch is OFF, front power window can be opened or closed by turning the key cylinder
switch UNLOCK / LOCK position more than 1.5 second over condition.

Power window can be opened as the door key cylinder is kept fully turning to the UNLOCK position.

Power window can be closed as the door key cylinder is kept fully turning to the LOCK position.
The power window DOWN stops when the following operations are carried out.

While performing open / close the window, power window is stopped at the position as the door key cylin-
der is placed on NEUTRAL.

When the ignition switch is turned ON while the power window DOWN is operated.

GW-26
POWER WINDOW SYSTEM
Revision: 2006 July 2007 FX35/FX45
Terminal and Reference Value for BCMNIS001QV
Te r -
minal Wire
color Item Signal
Input/Output Condition Voltage [V]
(Approx.)
12 P/B Front door switch
passenger side signal Input ON (Open) 0
OFF (Close) Battery voltage
22 OR Power window serial link Input/Output IGN SW ON or power window
timer operating.
38 W/L Ignition switch
(ON or START) Input Ignition switch
(ON or START position) Battery voltage
39 L CAN - H Input/Output — —
40 P CAN - L Input/Output — —
42 L/R Power source (Fuse) Input — Battery voltage
49 B Ground (signal) — — 0
52 B Ground (power) — — 0
53 Y/B Rap signal Output IGN SW ON Battery voltage
Within 45 second after ignition
switch is turned to OFF Battery voltage
When driver side or passen-
ger side door is open in power
window timer is operates 0
54 W Power window power supply Output — Battery voltage
55 G Power source
(Fusible link) Input — Battery voltage
62 W Front door switch
driver side signal Input ON (Open) 0
OFF (Close) Battery voltage
PIIA2344J

POWER WINDOW SYSTEM GW-29
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Revision: 2006 July 2007 FX35/FX45
CONSULT-II Function (BCM)NIS001R3
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
ACTIVE TEST
WORK SUPPORT
DATE MONITOR
BCM diagnostic test item Check item diagnostic test mode Content RETAINED PWR Work support Changes setting of each function.
Data monitor Displays the input data of BCM in real time.
Active test Gives a drive signal to a load to check the operation.
Test Item Description
RETAINED PWR This test is able to supply RAP signal (power) from BCM (body control module) to power window
system and power sunroof system (if equipped). Those systems can be operated when turning on
“RETAINED PWR” on CONSULT-II screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-II can be operated with ignition switch in “OFF” position. “RETAINED
PWR” should be turned “ON” or “OFF” on CONSULT-II screen when ignition switch is ON. Then
turn ignition switch OFF to check retained power operation. CONSULT-II might be stuck if
“RETAINED PWR” is turned to “ON” or “OFF” on CONSULT-II screen when ignition switch is OFF.
Work item Description
RETAINED PWR Rap signal’s power supply period can be changed by mode setting. Selects rap signal’s power
supply period between three steps

MODE1 (45 sec.) / MODE2 (OFF) / MODE 3 (2 min.).
Work item Description
IGN ON SW Indicates (ON / OFF) condition of ignition switch
DOOR SW–DR Indicates (ON / OFF) condition of front door switch driver side
DOOR SW–AS Indicates (ON / OFF) condition of front door switch passenger side

GW-30
POWER WINDOW SYSTEM
Revision: 2006 July 2007 FX35/FX45
Work FlowNIS001R4
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-16, "
System Description"
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction.
Refer to GW-30, "
Trouble Diagnosis Symptom Chart" .
4. Does power window system operate normally? Yes, GO TO 5, If No, GO TO 3.
5. INSPECTION END
Trouble Diagnosis Symptom ChartNIS001R5
Make sure other systems using the signal of the following systems operate normally.
Symptom Repair order Refer to page
None of the power windows can be operated using any switch. 1. Check BCM power supply and ground circuit
GW-32
2. Check power window main switch power
supply and ground circuit GW-33
3. Check power window serial link
GW-53
Driver side power window alone does not operated. 1. Check front power window motor (driver
side) circuit GW-35
2. Replace power window main switch —
Front passenger side power window alone does not operated. 1. Check front power window switch (passen-
ger side) power and ground circuit GW-34
2. Check power window serial link
GW-53
3. Check front power window motor (passen-
ger side) circuit GW-36
4. Replace BCM
BCS-14
Rear LH side power window alone does not operated Check rear power window motor (LH) circuit GW-36
Rear RH side power window alone does not operated Check rear power window motor (RH) circuitGW-39
Anti-pinch system does not operate normally (driver side) 1. Door window sliding part malfunction

A foreign material adheres to window glass
or glass run rubber.

Glass run rubber wear or deformation.

Sash is tilted too much, or no enough. —
2. Limit switch adjusting GW-60
3. Check limit switch circuit (driver side)GW-41
4. Check encoder circuit (driver side)GW-44
Anti-pinch system does not operate normally (passenger side) 1. Door window sliding part malfunction

A foreign material adheres to window glass
or glass run rubber.

Glass run rubber wear or deformation.

Sash is tilted too much, or no enough. —
2. Limit switch adjusting GW-60
3. Check limit switch circuit (passenger side)GW-43
4. Check encoder circuit (passenger side)GW-46
Power window retained power operation does not operate properly 1. Check the retained power operation mode
setting. GW-292. Check door switch
GW-49
3. Replace BCM.BCS-14
Does not operate by key cylinder switch 1. Check door key cylinder switch
GW-512. Replace power window main switch —
Power window lock switch does not function Check power window lock switch GW-55

GW-32
POWER WINDOW SYSTEM
Revision: 2006 July 2007 FX35/FX45
Check BCM Power Supply and Ground CircuitNIS001R7
1. CHECK FUSE

Check 15A fuse [No. 1, located in fuse block (J/B)]

Check 15A fuse [No. 22, located in fuse block (J/B)]

Check 50A fusible link (letter M , located in the fuse and fusible link box).
NOTE:
Refer to GW-15, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to
PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
Check voltage between BCM connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.
3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector M4 terminal 49, 52 and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Check BCM ground circuit for open or short.
Connector Terminal (Wire color)
Condition of
ignition switch Voltage [V]
(Approx.)
(+) (–)
M3 38 (W/L) Ground ON
Battery
voltage
M4 42 (L/R)
OFF
55 (G)
PIIB1383E
49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
PIIA6161E

POWER WINDOW SYSTEM GW-33
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Revision: 2006 July 2007 FX35/FX45
Check Power Window Main Switch Power Supply Circuit NIS001R8
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between power window main switch connector D6, D7 terminal 10, 19 and ground.
OK or NG
OK >> Power window main switch power supply and ground circuit are OK.
NG >> GO TO 2.
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window main switch connector.
3. Check continuity between power window main switch connector D7 terminal 17 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK HARNESS CONTINUITY
1. Disconnect BCM connector.
2. Check continuity between BCM connector M4 terminal 53, 54 and power window main switch connector D6, D7 terminal 10,
19.
3. Check continuity between BCM connector M4 terminal 53, 54 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness. 10 (BR) – Ground : Battery voltage
19 (W) – Ground : Battery voltage
PIIA4171E
17 (B) – Ground : Continuity should exist.
PIIA4172E
53 (Y/B) – 10 (BR) : Continuity should exist.
54 (W) – 19 (W) : Continuity should exist.
53 (Y/B) – Ground : Continuity should not exist.
54 (W) – Ground : Continuity should not exist.
PIIA6280E

GW-34
POWER WINDOW SYSTEM
Revision: 2006 July 2007 FX35/FX45
4. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M4 terminal 53, 54 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace BCM.
Check Front Power Window Switch (Passenger Side) Power Supply and Ground
Circuit
NIS001R9
1. CHECK POWER SUPPLY CIRCUIT
Check voltage between front power window switch (passenger side)
connector D36 terminal 10 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front power window switch (passenger side) connector.
3. Check continuity between front power window switch (passen- ger side) connector D36 terminal 11 and ground.
OK or NG
OK >> Front power window switch (passenger side) power sup- ply and ground circuit are OK.
NG >> Repair or replace harness. 53 (Y/B) – Ground : Battery voltage
54 (W) – Ground : Battery voltage
PIIA6154E
10 (W) – Ground : Battery voltage
PIIA4174E
11 (B) – Ground : Continuity should exist.
PIIA4175E

POWER WINDOW SYSTEM GW-35
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Revision: 2006 July 2007 FX35/FX45
3. CHECK HARNESS CONTINUITY
1. Disconnect BCM connector.
2. Check continuity between BCM connector M4 terminal 54 and front power window switch (passenger side) connector D36 ter-
minal 10.
3. Check continuity between BCM connector M4 terminal 54 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Repair or replace harness.
Check Front Power Window Motor (Driver Side) CircuitNIS001RB
1. CHECK POWER WINDOW MAIN SWITCH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between power window main switch connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace power window main switch.
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect power window main switch and front power window motor (driver side) connector.
3. Check continuity between power window main switch connector D6 terminal 8, 11 and front power window motor (driver side)
connector D8 terminal 1, 2.
OK or NG
OK >> Replace front power window motor (driver side).
NG >> Repair or replace harness. 54 (W) – 10 (W) : Continuity should exist.
54 (W) – Ground : Continuity should not exist.
PIIA6281E
Connector Terminals (Wire color)
Window condition Voltage [V]
(Approx.)
(+) (-)
D6 8 (L)
Ground UP Battery voltage
DOWN 0
11 ( B ) UP 0
DOWN Battery voltage
PIIA4179E
8 (L) – 2 (L) : Continuity should exist.
11 (B) – 1 (B) : Continuity should exist.
PIIA9956E

POWER WINDOW SYSTEM GW-37
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Revision: 2006 July 2007 FX35/FX45
2. CHECK HARNESS CONTINUITY 1
1. Turn ignition switch OFF.
2. Disconnect rear power window switch (LH) and rear power window motor (LH) connector.
3. Check continuity between rear power window switch (LH) con- nector D55 terminal 4, 5 and rear power window motor (LH) con-
nector D56 terminal 1, 2.
OK or NG
OK >> Replace rear power window motor (LH).
NG >> Repair or replace harness.
3. CHECK REAR POWER WINDOW SWITCH POWER SUPPLY
1. Connect rear power window switch (LH) connector.
2. Turn ignition switch ON.
3. Check voltage between rear power window switch (LH) connec- tor D55 terminal 1 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. CHECK HARNESS CONTINUITY 2
1. Turn ignition switch OFF.
2. Disconnect BCM and rear power window switch (LH) connector.
3. Check continuity between BCM connector M4 terminal 53 and rear power window switch (LH) connector D55 terminal 1.
4. Check continuity between BCM connector M4 terminal 53 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Repair or replace harness. 4 (L) – 1 (L) : Continuity should exist.
5 (G) – 2 (G) : Continuity should exist.
PIIA9958E
1 (BR) – Ground : Battery voltage
PIIA4185E
53 (Y/B) – 1 (BR) : Continuity should exist.
53 (Y/B) – Ground : Continuity should not exist.
PIIA6284E

GW-40
POWER WINDOW SYSTEM
Revision: 2006 July 2007 FX35/FX45
4. CHECK HARNESS CONTINUITY 2
1. Turn ignition switch OFF.
2. Disconnect BCM and rear power window switch (RH) connector.
3. Check continuity between BCM connector M4 terminal 53 and rear power window switch (RH) connector D75 terminal 1.
4. Check continuity between BCM connector M4 terminal 53 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Repair or replace harness.
5. CHECK REAR POWER WINDOW SWITCH
1. Turn ignition switch OFF.
2. Disconnect rear power window switch connector.
3. Rear power window switch (RH) operate, check continuity between rear power window switch terminals1, 2, 3 and 4, 5.
OK or NG
OK >> GO TO 6.
NG >> Replace rear power window switch (RH).
6. CHECK HARNESS CONTINUITY 3
1. Disconnect power window main switch connector.
2. Check continuity between power window main switch connector D6 terminals 5, 7 and rear power window switch (RH) connector
D75 terminals 2, 3.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace harness. 53 (Y/B) – 1 (BR) : Continuity should exist.
53 (Y/B) – Ground : Continuity should not exist.
PIIA6284E
Terminals Window condition Continuity
15 UP
Ye s
14 DOWN
2 5 No operation
3 4 No operation
PIIA4186E
5 (G) – 3 (R) : Continuity should exist.
7 (LG) – 2 (Y) : Continuity should exist.
PIIA4190E