turn signals INFINITI M35 2006 Factory Repair Manual

BCS-6
BCM (BODY CONTROL MODULE)
Revision: 2006 January2006 M35/M45
Operation Mode
Combination switch reading function has operation modes shown below.
1. Normal status
When BCM is not in sleep status, OUTPUT terminals (1-5) send out ON signal every 10 ms.
2. Sleep status
When BCM is in sleep status, transistors of OUTPUT 1 stop the output, and BCM enters low power
mode. Mean while OUTPUT 2-5 send out ON signal every 60 ms, and accept only input from lighting
switch (except turn signal switch) system.
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-34, "
CAN Communication Unit" .
PKIC0272E

BL-32
POWER DOOR LOCK SYSTEM
Revision: 2006 January2006 M35/M45
CONSULT-II Function (BCM)NIS001WX
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
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. Turn ignition switch “OFF”.
2. Connect “CONSULT-II” and “CONSULT-II CONVERTER” to the
data link connector (1).
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 the input data of BCM in real time basis.
ACTIVE TEST Give a drive signals to load to check the operation check.
PBIB2712E
BCIA0029E
BCIA0030E

BL-36
POWER DOOR LOCK SYSTEM
Revision: 2006 January2006 M35/M45
Check Door Lock and Unlock Switch NIS001X0
1. CHECK POWER WINDOW SWITCH OUTPUT SIGNAL
With CONSULT-II
Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in DATA MONITOR mode with CONSULT-II.
Without CONSULT-II
1. Remove key from ignition switch, and the door of driver side and passenger side is closed.
2. Check signal between BCM connector and ground with oscilloscope when door lock and unlock switch
(driver side and passenger side) 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 (driver side and passenger side) is turned “LOCK” or “UNLOCK”.
OK or NG
OK >> Door lock and unlock switch is OK.
NG >> GO TO 2.
Monitor item Condition
CDL LOCK SW LOCK : ON
UNLOCK : OFF
CDL UNLOCK SW LOCK : OFF
UNLOCK : ON
PIIA7068E
Terminal
Signal
(Reference value) (+)
(–)
BCM connector Terminal
M1 22 Ground
PIIB5957EPIIA1297E

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
Hazard and buzzer reminder can be changed using “HAZARD ANSWER BACK”, “ANSWER BACK WITH I-
KEY LOCK” and “ANSWER BACK WITH I-KEY UNLOCK” mode in “WORK SUPPORT”.Refer to BL-83,
"WORK SUPPORT" .
Auto Door Lock Function
When all doors are locked, ignition switch is in OFF position and key switch is OFF (Intelligent Key is not
inserted in key slot), doors are unlocked with door request switch
When Intelligent Key unit does not receive the following signals within 60 seconds, all doors are locked.
Door switch is ON (door is opened)
Door is locked
Ignition switch is ON (ignition switch is pressed)
Key switch is ON (Intelligent Key is inserted in key slot)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-
83, "WORK SUPPORT" .
Room Lamp Operation
When the following conditions are met:
Condition of interior lamp switch is in DOOR position
Door switch OFF (all the doors are closed)
Intelligent Key system turns on interior lamp (for 30 seconds) by receiving UNLOCK signal from door request
switch. For detailed description, refer to LT-270, "
ROOM LAMP TIMER OPERATION" .
List of Operation Related Parts
Parts marked with are the parts related to operation.
Door lock/trunk open function
Intelligent Key
Key slot
Remote keyless entry receiver
Door switch
Trunk room lamp switch
Door request switch (Driver, Passenger)
Trunk opener request switch
Door lock actuator
Trunk lid opener actuator
Inside key antenna
Outside key antenna (Driver, Passenger)
Outside key antenna (Trunk)
Intelligent Key warning buzzer
Intelligent Key unit
CAN communication system
BCM
Hazard warning lamp
Trunk lid opener cancel switch
Push-button ignition switch
Door lock/unlock function by request switch
Trunk open function by the trunk opener
request switch
Hazard and buzzer reminder function for door
lock/unlock operation
Buzzer reminder for trunk open operation
Key reminder function
Selective unlock function by request switch
(Driver side)
Selective unlock function by request switch
(Passenger side)
Auto door lock function

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
Hazard and Horn Reminder Function
When doors are locked or unlocked by Intelligent Key, Intelligent Key unit sends hazard and horn request sig-
nal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder and sends horn chirp signal to IPDM E/R. IPDM E/R
sounds horn as a reminder.
The hazard and horn reminder has a horn chirp mode (C mode) and a non-horn chirp mode (S mode).
Operating function of hazard and horn reminder
Hazard and horn reminder does not operate if any door switch is ON (any door is OPEN).
How to change hazard and horn reminder mode
With CONSULT-II
Hazard and horn reminder can be changed using “HORN WITH KEYLESS LOCK” and “HAZARD ANSWER
BACK” mode in “WORK SUPPORT”.Refer to BL-83, "
WORK SUPPORT" .
Without CONSULT-II
When LOCK and UNLOCK signals are sent from the Intelligent Key for more than 2 seconds at the same time,
the hazard and horn reminder mode is changed and hazard warning lamp flashes and horn sounds as follows:
Auto Door Lock Function
When all doors are locked, ignition switch is OFF (ignition switch is not pressed) and key switch is OFF (Intel-
ligent Key is not inserted in key slot), doors are unlocked with Intelligent Key button. When Intelligent Key unit
does not receive the following signals within 30 seconds, all doors are locked.
Door switch is ON (door is opened)
Door is locked
Ignition switch is ON
Key switch is ON (Intelligent Key is inserted in key slot)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-
83, "WORK SUPPORT" .
Panic Alarm Function
When ignition switch is OFF (ignition switch is not pressed) and key switch is OFF (Intelligent Key is not
inserted in key slot), Intelligent Key unit receives PANIC ALARM signal from Intelligent Key.
Intelligent Key unit sends alarm request signal to BCM via CAN communication line.
BCM turns on and off headlamp intermittently and sends theft warning horn signal to IPDM E/R. Then, IPDM
E/R turns on and off horn intermittently.
The headlamp flashes and the horn sounds intermittently.
The alarm automatically turns off:
After 25 seconds
When Intelligent Key unit receives any signal from Intelligent Key
When door request switch is pressed (Intelligent Key is within the outside key antenna detection area)
Panic alarm function mode can be changed by “PANIC ALARM DELAY” mode in “WORK SUPPORT”. Refer to
BL-83, "
WORK SUPPORT" .
C mode S mode
Intelligent Key operation Lock Unlock Trunk open Lock Unlock Trunk open
Hazard warning lamp flash Twice Once — Twice — —
Horn sound Once—————
SEL153WA

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2006 January2006 M35/M45
PRECAUTIONS FOR INTELLIGENT KEY SYSTEM
In the Intelligent Key system of model Y50, the transponder (the chip for immobilizer ID verifica-
tion) is integrated into the Intelligent Key. (For the conventional models, it is integrated into the
mechanical key.) Therefore, the mechanical key cannot perform the ID verification, and thus it can-
not start the engine. Instead of it, the immobilizer ID verification can be performed by inserting the
Intelligent Key into the key slot, and then it can start the engine.
When registering the Intelligent Key, 2 registration procedures (immobilizer ID registration and
Intelligent Key ID registration) should be performed. The immobilizer ID registration is the proce-
dure that registers the ID stored into the transponder (integrated into Intelligent Key) to the BCM.
The Intelligent Key ID registration is the procedure that registers the ID to the Intelligent Key unit.
Each registration is a different procedure.
When performing the Intelligent Key ID registration only, the engine cannot be started by inserting
the key into the key slot. When performing the engine immobilizer ID registration only, the engine
cannot be started by the operation when carrying the key. The registrations of both systems
should be performed.
Operation DescriptionNIS001Y9
SYSTEM DIAGRAM
OPERATION WHEN INTELLIGENT KEY IS CARRIED
Description
1. When the push-button switch is pressed, the Intelligent Key unit signals the inside key antenna and sends
the request signal to the Intelligent Key.
2. The Intelligent Key receives the request signal and sends the Intelligent Key ID signal to the Intelligent
Key unit via the remote keyless entry receiver.
3. The Intelligent Key receives the Intelligent Key ID signal and verifies it with the registered ID.
4. If the ID is successfully verified, the Intelligent Key unit sends the steering unlock signal to the steering
lock unit. Then, it sends each power supply request signal to PDU (Power Distribution Unit) after unlock-
ing the steering lock.
5. If the Intelligent Key unit judges that the engine start condition is satisfied, it sends the starter request sig-
nal via CAN communication to IPDM E/R and turns the starter motor relay ON.
6. The steering lock unit unlocks the steering lock when receiving the signal. PDU starts the power supply
distribution according to the push-button ignition switch operation when receiving the signal. If it enters the
engine start permission mode, the power supply is supplied from PDU to the starter motor relay and the
cranking is started.
CAUTION:
If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp in the combina-
tion meter illuminates for 15 seconds. At that time, the engine cannot be started.
7. When Intelligent Key unit received feedback signal from ECM acknowledging the engine has been initi-
ated, the Intelligent Key unit sends a stop signal to IPDM E/R and stops the cranking by turning OFF the
PIIB6272E

BL-164
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
SELF-DIAGNOSTIC LOGIC
DIAGNOSTIC PROCEDURE
1. CHECK POWER SUPPLY CIRCUIT
With CONSULT-II
Check (“IGN ON SW”) in DATA MONITOR mode with CONSULT-II.
Without CONSULT-II
Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Check the condition of harness and connector. If it is
OK, check the self-diagnosis results using CONSULT-II
again.
NG >> Check Intelligent Key unit power supply circuit for open or short.
DTC B2554 ACC POWER CIRCUITNIS001YR
DIAGNOSIS DESCRIPTION
B2554 ACC power supply circuit monitors the following 2 signals.
Though the power supply switching control to ACC position by push-button ignition switch operation is
performed normally, if there is no ACC power supply input to the Intelligent Key unit, it judges that it is the
malfunction and displays the DTC (Diagnostic Trouble Code)
When performing the power supply switching control to ACC position by push-button ignition switch oper-
ation, if the power supply position switching cannot be performed because the wake-up signal is not
entered into PDU (Power Distribution Unit), it judges that it is the malfunction and displays the DTC (Diag-
nostic Trouble Code)
DTCSelf-diagnosis
nameDTC detecting condition Possible causes
B2553IGN POWER CIR-
CUITThough the changing control to ON position by push-
button ignition switch operation is performed normally,
ON position power supply to the Intelligent Key unit is
not supplied
10A fuse
Harness and connector
(Open or shorted in the circuit)
When ignition switch is turned to ON
IGN ON SW : ON
PIIB6233E
Terminals
Ignition switch
conditionVoltage (V)
(Approx.) (+)
(–)
Intelligent Key
unit connectorTerminal
M32 31 GroundON Battery voltage
OFF 0
PIIB6234E

BL-214
TRUNK LID OPENER
Revision: 2006 January2006 M35/M45
CONSULT-II Function (BCM)NIS001ZR
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
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. Turn ignition switch “OFF”.
2. Connect “CONSULT-II” and CONSULT-II CONVERTER to data
link connector (1).
3. Turn ignition switch “ON”.
4. Touch “START(NISSAN BASED VHCL)”.
5. Touch “BCM”.
If “BCM” is not indicated, go to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
BCM diagnosis
partInspection item, self-diagnosis
modeContent
TRUNKDATA MONITOR Displays the input data of BCM in real time basis.
ACTIVE TEST Give a drive signals to load to check the operation check.
PBIB2712E
BCIA0029E
BCIA0030E

BL-224
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 January2006 M35/M45
VEHICLE SECURITY SYSTEM ALARM OPERATION
The vehicle security system is triggered by
opening a door
opening the trunk
opening the hood
detection of battery disconnect and connect.
The vehicle security system will be triggered once the system is in armed phase,
when BCM receives a ground signal at terminals 12 (passenger side door), 13 (rear RH door), 57 (trunk), 62
(driver side door), 63 (rear LH door), or receives a signal from the IPDM E/R (hood switch).
When the vehicle security system is triggered,
ground is supplied intermittently to both headlamp relay and horn relay.
When headlamp relay and horn relay are energized, then power is supplied to headlamps (LH and RH) and
horns (HIGH and LOW).
The headlamps flash and the horn sounds intermittently.
The alarm automatically turns off after 50 seconds, but will reactivate if the vehicle is tampered with again.
VEHICLE SECURITY SYSTEM DEACTIVATION
To deactivate the vehicle security system, a door or the trunk must be unlocked with the key, Intelligent Key.
When the key is used to unlock a door, BCM terminal 22 receives signal
from the power window main switch (door lock and unlock switch) terminal 14.
When the BCM receives either one of these signals or unlock signal from key cylinder switch or Intelligent Key,
the vehicle security system is deactivated. (Disarmed phase)
PANIC ALARM OPERATION
Intelligent Key system may or may not operate vehicle security system (horn and headlamps) as required.
When the Intelligent Key system is triggered, ground is supplied intermittently to both headlamp relay and horn
relay.
When headlamp relay and horn relay are energized, then power is supplied to headlamps (LH and RH) and
horns (HIGH and LOW).
The headlamp flashes and the horn sounds intermittently.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from Intelligent Key.
CAN Communication System DescriptionNIS001ZV
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNIS001ZW
Refer to LAN-34, "CAN COMMUNICATION" .

BRC-6
[VDC/TCS/ABS]
ON-VEHICLE SERVICE
Revision: 2006 January2006 M35/M45
ON-VEHICLE SERVICEPFP:00000
Adjustment of Steering Angle Sensor Neutral PositionNFS000Q4
In case of doing work that applies to the list below, make sure to adjust neutral position of steering angle sen-
sor before running vehicle.
: Required
–: Not required
CAUTION:
To adjust neutral position of steering angle sensor, make sure to use CONSULT-II.
(Adjustment cannot be done without CONSULT-II.)
1. Stop vehicle with front wheels in straight-ahead position.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector on vehicle.
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.
3. Turn ignition switch ON and touch the CONSULT-II screen in the order of “ABS”, “WORK SUPPORT” and
“ST ANG SEN ADJUSTMENT”.
4. Touch “START”.
CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
5. After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)
6. Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to perform above operation.
7. Run vehicle with front wheels in straight-ahead position, then
stop.
8. Select “DATA MONITOR”, “ECU INPUT SIGNALS”, and “STR ANGLE SIG” on CONSULT-II screen. Then
make sure “STR ANGLE SIG” is within 0
2.5. If value is more than specification, repeat steps 1 to 7.
9. Erase memory of ABS actuator and electric unit (control unit) and ECM. ABS actuator and electric unit
(control unit): Refer to BRC-23, "
ERASE MEMORY" . ECM: Refer to EC-100, "TROUBLE DIAGNOSIS"
(VQ35DE), EC-811, "TROUBLE DIAGNOSIS" (VK45DE).
10. Turn ignition switch OFF.
Situation Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing ABS actuator and electric unit (control unit)
Replacing ABS actuator and electric unit (control unit)
Removing/Installing steering angle sensor
Removing/Installing steering components
Removing/Installing suspension components
Change tires to new ones–
Tire rotation–
Adjusting wheel alignment
SFIA0793E