2004 INFINITI FX35 window

BCS-8
BCM (BODY CONTROL MODULE)
Revision: 2004 November 2004 FX35/FX45
MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote control entry system key fob

All-door locking actuator

Turn signal lamp (LH, RH)
Power door lock system

Power window main switch
(door lock and unlock switch)

Power window sub switch (passenger side)
(door lock and unlock switch)All-door locking actuator
Power supply (IGN) to power window, sunroof Ignition power supply Power window and sunroof system
Power supply (BAT) to power window, sunroof
and power seatBattery power supplyPower window, sunroof system and
power seat
Panic alarm

Key switch

Key fobIPDM E/R
Theft warning system

All-door switch

Hood switch

Key fob

Power window main switch (door lock and
unlock switch)

IPDM E/R

Security indicator lamp
Auto light system

Optical sensor

Combination switchIPDM E/R
Battery saver control

Ignition switch

Combination switchIPDM E/R
Headlamp Combination switch IPDM E/R
Tail lamp Combination switch IPDM E/R
Fog lamp Combination switch IPDM E/R
Turn signal lamp Combination switch

Turn signal lamp

Combination meter
Hazard lamp Hazard switch

Turn signal lamp

Combination meter
Room lamp timer

Key switch

key fob

Power window main switch (door lock and
unlock switch)

Front door switch driver side

All-door switchInterior room lamp
Key warning chime

Key switch

Front door switch driver sideCombination meter
(warning buzzer)
Light warning chime

Combination switch

Front door switch driver sideCombination meter
(warning buzzer)
Seat belt warning chime

Combination meter (Seat belt buckle
(driver side) switch)

Ignition switchCombination meter
(warning buzzer)
Vehicle-speed-sensing intermittent wiper

Combination switch

Combination meterIPDM E/R
Rear intermittent wiper Combination switch Rear wiper motor
Rear window defogger

Rear window defogger switch

Ignition switchIPDM E/R
A/C switch signal Unified meter and A/C amp. ECM
Blower fan switch signal Unified meter and A/C amp. ECM

BCM (BODY CONTROL MODULE)
BCS-13
C
D
E
F
G
H
I
J
L
MA
B
BCS
Revision: 2004 November 2004 FX35/FX45
4. Select the desired part to be diagnosed on the “SELECT TEST
ITEM” screen.
ITEMS OF EACH PART
NOTE:
CONSULT-II will Only display systems the vehicle possesses.
×:Applicable
NOTE:
This item is indicated, but it is what it does not use.
SKIA4963E
System and item CONSULT-II displayDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−
DIAG
RESULTSDATA
MONI-
TORCAN
DIAG
SUP-
PORT
MNTRECU
PA R T
NUM-
BERACTIVE
TESTCON-
FIGU-
RATION
Power door lock system DOOR LOCK×× ×
Rear window defogger REAR DEFOGGER××
Warning chime BUZZER××
Room lamp timer INT LAMP×× ×
Remotecontrol entry system MULTI REMOTE ENT×× ×
Headlamp HEAD LAMP×× ×
Wiper WIPER××
Turn signal lamp
Hazard lampFLASHER××
Blower fan switch signal
A/C switch signalAIR CONDITONER×
Intelligent Key system INTELLIGENT KEY×
Combination switch COMB SW×
BCM BCM× × ×××
×
Note
IVIS IMMU××
Room lamp battery saver BATTERY SAVER×× ×
Trunk lid
NoteTRUNK××
Vehicle security system THEFT ALM×× ×
Retained power control RETAINED PWR×× ×
Oil pressure switch SIGNAL BUFFER××

POWER DOOR LOCK SYSTEM
BL-23
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2004 November 2004 FX35/FX45
Component Parts and Harness Connector LocationAIS004LO
System DescriptionAIS004LP
Power is supplied at all times

to BCM terminal 55

through 50A fusible link (letter M , located in the fuse and fusible link box).

to BCM terminal 42

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

to key switch terminal 2 (without intelligent key system)

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

to key switch and ignition knob switch terminal 3 (with intelligent key system)

thought 15A fuse [No. 22, located in the fuse block (J/B)].
When key switch is ON (key is inserted in ignition key cylinder), power is supplied

to BCM terminal 37

through key switch terminal 1 (without intelligent key system) or 4 (with intelligent key system).
When the door is locked or unlocked with power window main switch (door lock and unlock switch), ground is
supplied

to CPU of power window main switch

through power window main switch (door lock and unlock switch) terminal 17

through grounds M35, M45 and M85.
Then power window main switch (door lock and unlock switch) operation signal is supplied.

to BCM terminal 22

through power window main switch terminal 14.
When the door is locked or unlocked with front power window switch (passenger side) (door lock and unlock
switch), ground is supplied

to CPU of front power window switch (passenger side)

through front power window switch (passenger side) (door lock and unlock switch) terminal 11

through grounds M35, M45 and M85.
Then front power window switch (passenger side) (door lock and unlock switch) operation signal is supplied

to BCM terminal 22

through front power window switch (passenger side) terminal 16.
When the door is locked with front door key cylinder switch, ground is supplied

to power window main switch terminal 4

through key cylinder switch terminals 1 and 5

through grounds M35, M45 and M85.
PIIA6412E

BL-24
POWER DOOR LOCK SYSTEM
Revision: 2004 November 2004 FX35/FX45
Then key cylinder switch operation signal (lock) is supplied

to BCM terminal 22

through power window main switch terminal 14.
When the door is unlocked with key cylinder switch, ground is supplied

to power window main switch terminal 6

through key cylinder switch terminal 6 and 5

through grounds M35, M45 and M85.
Then key cylinder switch operation signal (unlock) is supplied

to BCM terminal 22

through power window main switch terminal 14.
BCM is connected to power window main switch and front power window switch (passenger side) as serial
link.
When the front door switch (driver side) is ON (door is OPEN), ground is supplied

to BCM terminal 62

through front door switch (driver side) terminal 1

through front door switch (driver side) case ground.
When the front door switch (passenger side) is ON (door is OPEN), ground is supplied

to BCM terminal 12

through front door switch (passenger side) terminal 1

through front door switch (passenger side) case ground.
When the rear door switch LH is ON (door is OPEN), ground is supplied

to BCM terminal 63

through front door switch LH terminal 1

through rear door switch LH case ground.
When the rear door switch RH is ON (door is OPEN), ground is supplied

to BCM terminal 13

through front door switch RH terminal 1

through rear door switch RH case ground.
When the back door switch is ON (door is OPEN), ground is supplied

to BCM terminal 58

through back door closure motor (door switch) terminal 7 and 8

through grounds B15 and B45.
OUTLINE
Functions Available by Operating the Door Lock and Unlock Switches on Driver's Door and
Passenger's Door

Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all doors and
fuel lid lock actuator are locked.

Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all doors
and fuel lid lock actuator are unlocked.
Functions Available by Operating the Key Cylinder Switch on Driver's

Interlocked with the locking operation of door key cylinder, door lock actuators of all doors and fuel lid lock
actuator are locked.
Select Unlock Operation

When door key cylinder is unlocked, door lock actuator driver side and fuel lid lock actuator are unlocked.

When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door
lock actuators on all doors are unlocked.
Select unlock operation mode can be changed using “DOOR LOCK-UNLOCK SET” mode in “WORK
SUPPORT”. Refer to BL-40, "
Work Support" .
Select unlock operation mode can be changed also on the display.
Refer toAV- 5 8 , "
SETTING SCREEN" . (without navigation system)

POWER DOOR LOCK SYSTEM
BL-37
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for BCMAIS004LV
Terminals and Reference Value for Intelligent Key Unit (With Intelligent Key Sys-
tem)
AIS004LW
Work FlowAIS004LX
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to BL-23, "
System Description" .
3. Perform the preliminary check. Refer to BL-38, "
Preliminary Check" .
4. According to the trouble diagnosis chart by symptom, repair or replace the cause of the malfunction.
Refer to BL-41, "
Trouble Diagnosis Chart by Symptom" .
5. Does power door lock system operate normally?
YES: GO TO 6.
NO: GO TO 4.
6. INSPECTION END
TERMI-
NALWIRE
COLORITEM CONDITIONVOLTAGE (V)
Approx.
12 P/BFront door switch (Passenger
side)ON (door open) → OFF (door closed) 0 → Battery voltage
13 P/L Rear door switch RH ON (door open) → OFF (door closed) 0 → Battery voltage
22 OR Power window serial link Ignition switch ON
37 B/W Key switchON (Key inserted) → OFF (Key removed
from IGN key cylinder)Battery voltage → 0
39 L CAN H — —
40 R CAN L — —
42 L/R Battery power supply (fuse) — Battery voltage
44 YDriver door lock actuator
(unlock)Door lock / unlock switch
(Free → Unlock)0 → Battery voltage
49, 52 B Ground — 0
50 PU Door lock actuator (lock)Door lock / unlock switch
(Free → Lock)0 → Battery voltage
51 W/BPassenger and rear doors lock
actuator (unlock)Door lock / unlock switch
(Free → Unlock)0 → Battery voltage
55 G Power source (Fusible link) — Battery voltage
58 L Back door switch ON (Door open) → OFF (Door closed) 0 → 9
62 W Front door switch (Driver side) ON (Door open) → OFF (Door closed) 0 → Battery voltage
63 P Rear door switch LH ON (Door open) → OFF (Door closed) 0 → Battery voltage
PIIA2344J
TERMI-
NALWIRE
COLORITEM CONDITIONVOLTAGE (V)
Approx.
2 L CAN H – –
3 R CAN L – –
27 L/W Push switch Push switch (OFF → ON) 0 → Battery voltage
40 BR/W AS unlock output signalDoor lock / unlock switch
(Free → Unlock)0 → Battery voltage

POWER DOOR LOCK SYSTEM
BL-41
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2004 November 2004 FX35/FX45
Trouble Diagnosis Chart by SymptomAIS004M0
Always check the “Work Flow” before troubleshooting. Refer to BL-37, "Work Flow" .
*1 : Lock operation
*2 : Unlock operation
*3 : Driver side
*4 : Except driver sideSymptom Diagnoses service procedureReference
page
Key reminder door system does not operate properly.1.Check key reminder door mode.*
*: Key reminder door mode can be changed.
First check key reminder door mode.BL-40
2. Preliminary CheckBL-38
3. Check key switch.BL-46
4. Check door switch. BL-42
5. Replace BCM.BCS-15
Power door lock does not operate with door lock and unlock switch.1. Preliminary checkBL-382. Check door lock and unlock switch.BL-48
3. Replace BCM.BCS-15
Power door lock does not operate with door key cylinder operation.
(Power door lock operate properly with door lock and unlock switch.)1. Check front door key cylinder switch.BL-53*1
BL-54*2
2. Replace power window main switch. –
Specific door lock actuator does not operate.1. Check door lock actuator.BL-50
*3
BL-51*4
2. Replace BCM.BCS-15
All door lock actuator (except passenger side and fuel lid) does not
operate.*
*: Only model with intelligent key system.1. Check select unlock relay circuit.BL-55
Select unlock does not operate.
(All other power door lock system is “OK”.)1. Check select unlock mode.*
*: Select unlock mode can be changed.
First check select unlock mode.BL-40
2. Replace BCM.BCS-15
Fuel lid opener actuator does not operate.
(All door lock actuators operates properly.)1.Check fuel lid opener actuator.BL-52

POWER DOOR LOCK SYSTEM
BL-49
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2004 November 2004 FX35/FX45
2. CHECK POWER WINDOW SERIAL LINK CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM, power window main switch and front power window switch connectors.
3. Check continuity between BCM connector M3 terminal 22 and
power window main switch (door lock and unlock switch) con-
nector D6 terminal 14.
4. Check continuity between power window main switch (door lock
and unlock switch) connector D6 terminal 14 and ground.
5. Check continuity between BCM connector M3 terminal 22 and
front power window switch (door lock and unlock switch) con-
nector D36 terminal 16.
6. Check continuity between front power window switch (door lock
and unlock switch) connector D36 terminal 16 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.22 (OR) – 14 (Y) : Continuity should exist.
14 (Y) – Ground : Continuity should not exist.
PIIB0405E
22 (OR) – 16 (Y) : Continuity should exist.
16 (Y) – Ground : Continuity should not exist.
PIIB0406E

BL-50
POWER DOOR LOCK SYSTEM
Revision: 2004 November 2004 FX35/FX45
3. CHECK DOOR LOCK AND UNLOCK SWITCH GROUND HARNESS

Check continuity between power window main switch (door lock
and unlock switch) connector D7 terminal 17 and ground.

Check continuity between power window sub-switch (front pas-
senger side) (door lock and unlock switch) connector D36 termi-
nal 11 and ground.
OK or NG
OK >> Replace power window main switch or power window sub-switch.
NG >> Repair or replace harness.
Check Door Lock Actuator (Driver side)AIS004M4
1. CHECK DOOR LOCK ACTUATOR HARNESS
1. Turn ignition switch OFF.
2. Disconnect BCM and front door lock actuator (driver side) connector.
3. Check continuity between BCM connector M4 terminals 44, 50
and front door lock actuator (driver side) connector D10 termi-
nals 2, 3.
4. Check continuity between BCM connector M4 terminals 44, 50
and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.17 (B) – Ground : Continuity should exist.
PIIA6201E
11 (B) – Ground : Continuity should exist.
PIIA6202E
44 (Y) – 2 (GY) : Continuity should exist.
50 (PU) – 3 (PU) : Continuity should exist.
44 (Y) – Ground : Continuity should not exist.
50 (PU) – Ground : Continuity should not exist.
PIIA6539E