turn signal INFINITI FX35 2006 Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2006, Model line: FX35, Model: INFINITI FX35 2006Pages: 4462, PDF Size: 57.74 MB
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BCM (BODY CONTROL MODULE) BCS-3
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Revision: 2006 December 2006 FX35/FX45
BCM (BODY CONTROL MODULE)PFP:284B2
System DescriptionNKS0033Z
BCM (Body Control Module) controls the operation of various electrical units installed on the vehicle.
BCM FUNCTION
BCM has combination switch reading function for reading the operation of combination switches (light, wiper,
washer and turn signal) in addition to a function for controlling the operation of various electrical components.
Also it has an interface function allowing it to receive signals from the unified meter and A/C amp., and send
signals to ECM using CAN communication.
COMBINATION SWITCH READING FUNCTION
Description
BCM reads combination switch (lighting switch, wiper switch) status, and controls various electrical com-
ponent according to the result.
BCM reads information of a maximum of 20 switches by combining five output terminals (OUTPUT 1-5)
and five input terminals (INPUT 1-5).
Operation Description
BCM activates transistors of output terminals (OUTPUT 1-5) periodically, and allows current to flow in
turn.
If any (1 or more) switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input terminals
(INPUT 1-5) becomes active.
At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When volt-
age of input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects volt-
age change, and BCM determines that switch is ON.
PKIC9702E
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BCM (BODY CONTROL MODULE) BCS-5
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Revision: 2006 December 2006 FX35/FX45
Sample Operation: (When Lighting Switch 1ST Position Turned ON)
When lighting switch 1ST position is turned ON, contact in combination switch turns ON. At this time if
OUTPUT 4 transistor is activated, BCM detects that voltage changes in INPUT 5.
When OUTPUT 4 transistor is ON, BCM detects that voltage changes in INPUT 5, and judges that lighting
switch 1ST position is ON. Then BCM sends tail lamp and clearance lamp request signal to IPDM E/R
using CAN communication.
When OUTPUT 4 transistor is activated again, BCM detects that voltage changes in INPUT 5, and recog-
nizes that lighting switch 1ST position is continuously ON.
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON, electri-
cal loads are activated with time delay. But this time delay is so short that it cannot be detected by human
senses.
PKIC9700E
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BCM (BODY CONTROL MODULE) BCS-7
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Revision: 2006 December 2006 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, sleep transient status is switched to
CAN communication inactive 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 inactive status
is switched to sleep status.
4. Sleep status
BCM is activated with low power 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.
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BCS-8
BCM (BODY CONTROL MODULE)
Revision: 2006 December 2006 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 lock BL-21, "
POWER DOOR LOCK SYSTEM"
Remote keyless entryBL-54, "REMOTE KEYLESS ENTRY SYSTEM"
Power window NOTEGW-15, "POWER WINDOW SYSTEM"
Sunroof NOTERF-10, "SUNROOF"
Room lamp timerLT-156, "INTERIOR ROOM LAMP"
Warning chimeDI-56, "WARNING CHIME"
Rear wiperWW-39, "REAR WIPER AND WASHER SYSTEM"
Low tire pressure warning systemWT-10, "LOW TIRE PRESSURE WARNING SYSTEM"
System Reference
Panic alarm BL-54, "
REMOTE KEYLESS ENTRY SYSTEM"
Theft warningBL-180, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"
IVIS (NATS)BL-205, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)"
HeadlampLT- 7 , "HEADLAMP - XENON TYPE -"
Daytime light LT- 3 9 , "DAYTIME LIGHT SYSTEM"
Auto light systemLT- 5 6 , "AUTO LIGHT SYSTEM"
Parking, license plate, side marker and tail lamps
Battery saver control LT-133, "PARKING, LICENSE PLATE AND TAIL LAMPS"
Front fog lamp
LT- 7 8 , "FRONT FOG LAMP"
Front wiperWW-4, "FRONT WIPER AND WASHER SYSTEM"
Rear window defoggerGW-67, "REAR WINDOW DEFOGGER"
System Reference
Warning chime DI-56, "
WARNING CHIME"
Turn signal and hazard warning lampsLT- 9 0 , "TURN SIGNAL AND HAZARD WARNING LAMPS"
Daytime light systemLT- 3 9 , "DAYTIME LIGHT SYSTEM"
System Reference
Intelligent Key BL-86, "
INTELLIGENT KEY SYSTEM"
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BCM (BODY CONTROL MODULE) BCS-9
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Revision: 2006 December 2006 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)
Intelligent key system Intelligent key unit
All-door locking actuator
Fuel lid Lock actuator
Turn signal lamp (LH, RH)
Combination meter
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 seat Battery power supply
Power window, sunroof system and
power seat
Panic alarm
Key switch
Key fob IPDM 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 switch IPDM E/R
Battery saver control
Ignition switch
Combination switch IPDM E/R
Headlamp Combination switch IPDM E/R
Daytime light system
Combination meter
ECM Combination meter
Tail lamp Combination switch IPDM E/R
Front 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 switch Interior room lamp
Key warning chime
Key switch
Front door switch driver side Combination meter
(warning buzzer)
Light warning chime
Combination switch
Front door switch driver side Combination meter
(warning buzzer)
Seat belt warning chime
Combination meter (Seat belt buckle
(driver side) switch)
Ignition switch Combination meter
(warning buzzer)
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BCM (BODY CONTROL MODULE) BCS-13
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Revision: 2006 December 2006 FX35/FX45
CONSULT-II Function (BCM)NKS00342
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT–II INSPECTION PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
ITEMS OF EACH PART
NOTE:
CONSULT-II displays systems equipped in the vehicle.
× :Applicable
NOTE:
*1: This item is displayed, but should not be used.
*2: This item is displayed, but does not function. Diagnostic test item Check item, diagnostic test mode Content
Inspection by part WORK SUPPORT Changes setting of each function.
SELF-DIAG RESULTS BCM performs self-diagnosis of CAN communication.
DATA MONITOR Displays the input data of BCM in real time.
CAN DIAG SUPPORT MNTR The transmit/receive diagnosis result of CAN communication 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.
CONFIGURATION (Not be used)
System and item CONSULT-II display Diagnostic test mode (Inspection by part)
WORK
SUPPORT SELF
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DIAG
RESULTS DATA
MONI- TOR CAN
DIAG SUP-
PORT
MNTR ACTIVE
TEST ECU
PA RT
NUM- BER CON-
FIGU-
RATION
BCM BCM ×× × ×
×
*1
Power door lock system DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Room lamp timer INT LAMP ×××
Headlamp HEAD LAMP ×××
Wiper WIPER ×××
Turn signal lamp
Hazard lamp FLASHER
××
Blower fan switch signal
A/C switch signal AIR CONDITONER
×
Intelligent Key system INTELLIGENT KEY ×
Combination switch COMB SW ×
IVIS IMMU ××
Room lamp battery saver BATTERY SAVER ×× ×
Trunk lid TRUNK
*2××
Vehicle security system THEFT ALM ×××
Retained power control RETAINED PWR ×××
Oil pressure switch SIGNAL BUFFER ××
Low tire pressure warning
system AIR PRESSURE
MONITOR ××× ×
Panic system PANIC ALARM ×
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BL-46
POWER DOOR LOCK SYSTEM
Revision: 2006 December 2006 FX35/FX45
Check Door Lock and Unlock SwitchNIS001MA
1. CHECK DOOR LOCK AND UNLOCK SWITCH INPUT SIGNAL
With CONSULT-II
Check door lock and unlock switch (“CDL LOCK SW” and “CDL
UNLOCK SW”) in DATA MONITOR mode with CONSULT-II.
When door lock and unlock switch is turned to LOCK:
When door lock and unlock switch is turned to UNLOCK:
Without CONSULT-II
1. Remove key from ignition key cylinder.
2. Check the signal between BCM connector M3 terminal 22 and ground with oscilloscope when door lock and unlock switch is turned “LOCK” or “UNLOCK”.
3. Make sure signals which are shown in the figure below can be detected during 10 second just after door lock and unlock switch
is turned “LOCK” or “UNLOCK”.
OK or NG
OK >> Door lock and unlock switch circuit is OK.
NG >> GO TO 2. CDL LOCK SW : ON
CDL UNLOCK SW : ON
PIIA6538E
Connector Terminal
(Wire color) Signal
(Reference value)
(+) (–)
M3 22 (OR) Ground
PIIA6379E
PIIA1297E
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POWER DOOR LOCK SYSTEM BL-49
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Revision: 2006 December 2006 FX35/FX45
2. CHECK OUTPUT SIGNAL
1. Connect BCM and door lock actuator (driver side) connector.
2. Check voltage between BCM connector M4 terminals 44, 50 and ground.
OK or NG
OK >> Check harness connection.
NG >> Replace BCM.
Check Door Lock Actuator (Passenger Side and Rear LH/RH)NIS001MC
1. CHECK DOOR LOCK ACTUATOR CIRCUIT
1. Disconnect BCM and each door lock actuator connectors.
2. Check continuity between BCM connector M4 terminals 50, 51 and front door lock actuator passenger side, rear door lock actu-
ator LH/RH connectors D40, D52, D72 terminals 2, 3.
3. Check continuity between BCM connector M4 terminals 50, 51 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
Con-
nector Terminal
(Wire color) Condition Voltage (V)
(Approx.)
(+) (–)
M4 44
(Y)
Ground Driver door lock/unlock
switch is turned to
UNLOCK. 0
→ Battery voltage → 0
50
(PU) Driver door lock/unlock
switch is turned to
LOCK. 0
→ Battery voltage → 0
PIIA6383E
50 (PU) – 3 (PU) : Continuity should exist.
51 (W/B) – 2 (L or Y) : Continuity should exist.
50 (PU) – Ground : Continuity should not exist.
51 (W/B) – Ground : Continuity should not exist.
PIIA6540E
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BL-50
POWER DOOR LOCK SYSTEM
Revision: 2006 December 2006 FX35/FX45
2. CHECK DOOR LOCK ACTUATOR SIGNAL
Check voltage between BCM connector M4 terminals 50, 51 and
ground.
OK or NG
OK >> Replace front door lock assembly (passenger side) or rear door lock actuator LH/RH.
NG >> Replace BCM.
Check Fuel Lid Lock Actuator NIS001MD
1. CHECK FUEL LID LOCK ACTUATOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM and fuel lid lock actuator connector.
3. Check continuity between BCM connector M4 terminals 44, 50 and fuel lid lock actuator connector B70 terminals 1, 2.
4. Check continuity between BCM connector M4 terminals 44, 50 and ground.
OK or NG
OK >> Replace fuel lid lock actuator.
NG >> Repair or replace harness.
Con-
nector Terminal
(Wire color) Condition Voltage (V)
(Approx.)
(+) (–)
M4 50
(PU) Ground Door lock/unlock switch
is turned to LOCK. 0
→ Battery voltage → 0
51
(W/B) Door lock/unlock switch
is turned to UNLOCK. 0
→ Battery voltage → 0
PIIA6385E
44 (Y) – 2 (L) : Continuity should exist.
50 (PU) – 1 (PU) : Continuity should exist.
44 (Y) – Ground : Continuity should not exist.
50 (PU) – Ground : Continuity should not exist.
PIIA6386E
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POWER DOOR LOCK SYSTEM BL-51
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Revision: 2006 December 2006 FX35/FX45
Check Front Door Key Cylinder Switch (Lock) NIS001ME
1. CHECK FRONT DOOR KEY CYLINDER SWITCH INPUT SIGNAL (LOCK SIGNAL)
With CONSULT-II
Check front door key cylinder switch LH (“KEY CYL LK SW”) in
“DATA MONITOR” mode with CONSULT-II.
When key cylinder switch is turned to “LOCK”.
Without CONSULT-II
Check voltage between power window main switch (door lock and
unlock switch) connector and ground.
OK or NG
OK >> Front door key cylinder switch circuit driver side (lock) is OK.
NG >> GO TO 2.
2. CHECK FRONT DOOR KEY CYLINDER SWITCH
1. Disconnect front door key cylinder switch driver side connector.
2. Check continuity between front door key cylinder switch driver side terminals 1 and 5.
OK or NG
OK >> Check the following.
Front door key cylinder switch driver side ground circuit.
Harness for open or short between power window main switch (door lock and unlock switch)
and front door key cylinder switch driver side.
NG >> Replace front door key cylinder switch driver side. KEY CYL LK-SW : ON
PIIA6541E
Connector
Terminal (Wire color)
Front door key cylinder
switch position Voltage (V)
(Approx.)
(+) (-)
D6 4 (P) Ground Neutral / Unlock 5
Lock 0
PIIA6203E
Terminal Front door key cylinder switch position Continuity
15 Neutral / Unlock No
Lock Yes
PIIA6543E