2004 INFINITI FX35 turn signal

BCM (BODY CONTROL MODULE)
BCS-5
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BCS
Revision: 2004 November 2004 FX35/FX45
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON,
electrical loads are activated with time delay. But this time delay is so short that it cannot be detected by
human senses.
5. Operation mode

Combination switch reading function has operation modes shown below.
a. Normal status

When BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10 ms.
b. Sleep status

When BCM is in sleep status, transistors of OUTPUT 1 and 5 stop the output, and BCM enters low cur-
rent consumption mode. OUTPUT (2, 3, and 4) turn ON-OFF every 10 ms, and only input from light
switch system is accepted.
CAN COMMUNICATION CONTROL
CAN communication allows a high rate of information transmission through the two communication lines (CAN
L line, CAN H line) connecting the various control units in the system. Each control unit transmits/receives
data but selectively reads required data only. For details of signals that are transmitted/received by BCM via
CAN communication, refer to LAN-6, "
CAN Communication Unit" .
SKIA4961E

BCS-6
BCM (BODY CONTROL MODULE)
Revision: 2004 November 2004 FX35/FX45
BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1. CAN communication status

With ignition switch ON, CAN communicates with other control units normally.

Control by BCM is being operated properly.

When ignition switch is OFF, switching to sleep mode is possible.

Even when ignition switch is OFF, if CAN communication with IPDM E/R and combination meter is
active, CAN communication status is active.
2. Sleep transient status

This status shuts down CAN communication when ignition switch is turned OFF.

It transmits sleep request signal to IPDM E/R and combination meter.

Two seconds after CAN communication of all control units stops, CAN communication switches to inac-
tive status.
3. CAN communication inactive status

With ignition switch OFF, CAN communication is not active.

With ignition switch OFF, control performed only by BCM is active.

Three seconds after CAN communication of all control units stops, CAN communication switches to
inactive status.
4. Sleep status

BCM is activated with low current consumption mode.

CAN communication is not active.

When CAN communication operation is detected, it switches to CAN communication status.

When a state of the following switches changes, it switches to CAN communication state.
–Key switch
–Hazard switch
–Door lock/unlock switch
–Front door switch (driver side, passenger side)
–Rear door switch (LH, RH)
–Back door opener switch
–Combination switch (passing, lighting switch 1st position, Front fog lamp)
–Key fob (lock/unlock signal)
–Key cylinder switch

When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.

Status of combination switch reading function is changed.

BCM (BODY CONTROL MODULE)
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Revision: 2004 November 2004 FX35/FX45
SYSTEMS CONTROLLED BY BCM DIRECTLY
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER
SYSTEMS CONTROLLED BY BCM AND INTELLIGENT KEY UNIT
System Reference
Power door lockBL-22, "
POWER DOOR LOCK SYSTEM"
Remote keyless entryBL-56, "REMOTE KEYLESS ENTRY SYSTEM"
Power window NOTEGW-15, "POWER WINDOW SYSTEM"
Sunroof NOTERF-10, "SUNROOF"
Room lamp timerLT-157, "INTERIOR ROOM LAMP"
Warning chimeDI-55, "WARNING CHIME"
Rear wiperWW-35, "REAR WIPER AND WASHER SYSTEM"
System Reference
Panic alarmBL-56, "
REMOTE KEYLESS ENTRY SYSTEM"
Theft warningBL-181, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"
IVIS (NATS)BL-206, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)"
Headlamp, tail lamp, auto light system, battery saver control

LT- 7 , "HEADLAMP - XENON TYPE -"

LT-38, "DAYTIME LIGHT SYSTEM"

LT-54, "AUTO LIGHT SYSTEM"
Fog lampLT-77, "FRONT FOG LAMP"
Front wiperWW-4, "FRONT WIPER AND WASHER SYSTEM"
Rear window defoggerGW-86, "REAR WINDOW DEFOGGER"
System Reference
Warning chimeDI-55, "
WARNING CHIME"
Turn signal and hazard warning lampsLT-89, "TURN SIGNAL AND HAZARD WARNING LAMPS"
System Reference
Intelligent KeyBL-84, "
INTELLIGENT KEY SYSTEM"

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

BCS-12
BCM (BODY CONTROL MODULE)
Revision: 2004 November 2004 FX35/FX45
CONSULT-IIAKS0058B
CONSULT-II performs the following functions with combination of data receiving, command and transmission
using the CAN communication line from the BCM.
CONSULT–II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, then turn the
ignition switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, go to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
BCM diagnostic test item Check item, diagnostic test mode Content
Inspection by partWork support Changes setting of each function.
Self-diagnosis results BCM performs self-diagnosis of CAN communication.
Data monitor Displays the input data of BCM in real time.
CAN diagnostic support monitorThe result of transmit/receive diagnosis of CAN com-
munication can be read.
Active test Gives a drive signal to a load to check the operation.
ECU part number ECM part number can be read.
PBIB1503E
SKIA3098E
SKIA5036E

BCM (BODY CONTROL MODULE)
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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××

BL-38
POWER DOOR LOCK SYSTEM
Revision: 2004 November 2004 FX35/FX45
Preliminary CheckAIS004LY
FUSE AND FUSIBLE LINK CHECK
1. FUSE INSPECTION
Check the following fuse and fusible link.
NOTE:
Refer to BL-22, "
Component Parts and Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM connectors M4 terminals 42, 55
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace BCM power supply circuit.
3. CHECK GROUND CIRCUIT
Check continuity between BCM connectors M4 terminals 49, 52 and
ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Repair or replace BCM ground circuit.
Unit Signal name No, Location
BCMBattery power supply 22 (15A) Fuse block (J/B)
Battery power supply M (50A) Fuse and fusible link box
BCM – Ground
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6374E
BCM – Ground
49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
ConnectorTerminals
(Wire color)
Continuity
(+) (–)
M449 (B)
Ground Yes
52 (B)
PIIA6375E

POWER DOOR LOCK SYSTEM
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Revision: 2004 November 2004 FX35/FX45
CONSULT-II FunctionAIS004LZ
Power door lock system check with data monitor and active test can be performed by combining data recep-
tion and command transmission via communication line from BCM.
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunction might be detected
in self-diagnosis depending on control unit which carry out CAN communication.
1. With ignition switch “OFF”.
2. Connect “CONSULT-II” and “CONSULT-II CONVERTER” to the
data link connector.
3. Turn ignition switch “ON”.
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, go to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
BCM diagnosis
partInspection item, self-diagnosis
modeContent
Door lockDATA MONITOR Displays BCM input data on real-time basis.
ACTIVE TEST Sends drive signals to door lock actuator to perform operation check.
PBIB1503E
MBIB0233E
LIIA0033E