2006 INFINITI M35 steering

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
List of Operation Related Parts
Parts marked with are the parts related to operation.
Warning function
Intelligent Key
Key slot
Ignition switch
Door switch
Door request switch
Inside key antenna
Outside key antenna
Intelligent Key warning buzzer
Combination meter warning buzzer
Intelligent Key unit
CAN communication system
BCM
Combination meter display
Key slot illumination
Park position switch
“KEY” warning lamp
Intelligent Key system malfunction
OFF position warningFor internalFor external
P position warning
ACC warning
Take away warningDoor is open or close
Door is open
Push-ignition switch
operation
Take away through win-
dow
Intelligent Key is
removed from key slot
Door lock operation warning
Key warning
Intelligent Key insert information
Engine start informationIgnition switch is ON
positionIgnition switch is except
ON position
Steering lock information
Intelligent Key low battery warning
Key ID warning

BL-60
INTELLIGENT KEY SYSTEM
Revision: 2006 January2006 M35/M45
CHANGE SETTINGS FUNCTION
The settings for each function can be changed with the CONSULT-II.
Changing Settings Using CONSULT-II
The settings for the Intelligent Key system functions can be changed using CONSULT-II (WORK SUPPORT).
Refer to BL-83, "
WORK SUPPORT" .
NOTE:
Once a function setting is changed, it will remain effective even if the battery is disconnected.
INTELLIGENT KEY REGISTRATION
Intelligent Key-ID registration is performed using the CONSULT-II.
CAUTION:
After a new Intelligent Key-ID is registered, be sure to check the function.
When registering an additional Intelligent Key-ID, take any Intelligent Keys already registered and
Intelligent Keys for any other vehicles out of the vehicle before starting.
CONSULT-II can be used to check and delete Intelligent Key-IDs.
For future information, see Technical Bulletin.
STEERING LOCK UNIT REGISTRATION
Steering Lock Unit ID Registration
CAUTION:
The method for registering a steering lock unit ID depends on the status of the steering lock unit
and Intelligent Key unit (new or old unit).
After registration is completed, press ignition switch with an Intelligent Key in the vehicle so that it
can be turned, and confirm that it cannot be turned even when ignition switch is pressed without
an Intelligent Key in the vehicle.
For future information, see Technical Bulletin.
CAN Communication System DescriptionNIS001X9
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 UnitNIS001XA
Refer to LAN-34, "CAN Communication Unit" .

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
5. Touch “INTELLIGENT KEY” on “SELECT SYSTEM” screen.
If “INTELLIGENT KEY” is not indicated, go to GI-40, "
CON-
SULT-II Data Link Connector (DLC) Circuit" .
6. Select diagnosis mode. “WORK SUPPORT”, “SELF-DIAG
RESULTS”, “CAN DIAG SUPPORT MNTR”, “DATA MONITOR”,
“ACTIVE TEST” and “ECU PART NUMBER” are available.
CONSULT-II Application ItemsNIS001XJ
SELF-DIAGNOSTIC RESULTS
How to Read SELF-DIAGNOSTIC RESULTS
BCIA0030E
BCIA0031E
PIIB6280E
Suspect Systems
[DTC]Diagnostic item is detected when... Repair work Reference page
CAN COMM 1
[U1000]Malfunction is detected in CAN communicationPerform CAN communi-
cation system inspectionBL-92
CAN COMM 2
[U1010]Malfunction is detected in CAN communication caused
by Intelligent Key unit internal malfunctionReplace Intelligent Key
unit.BL-92
STRG COMM 1
[B2013]Communication malfunction with steering lock unit is
detectedCheck steering lock unitBL-157
STEERING LOCK UNIT
[B2551]Even if the communication with steering lock unit is
normally performed, the steering lock is malfunctioningReplace steering lock
unitBL-159

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
OUTSIDE BUZZERThis test is able to check Intelligent Key warning buzzer operation.
Intelligent Key warning buzzer sounds when “ON” on CONSULT-II screen is touched.
INSIDE BUZZERThis test is able to check warning chime into combination meter operation.
Take away warning chime sounds when “TAKE OUT” on CONSULT-II screen is touched.
Key warning chime sounds when “KEY WARN” on CONSULT-II screen is touched.
P position warning chime sounds when “P RNG WARN” on CONSULT-II screen is touched.
ACC warning chime sounds when “ACC WARN” on CONSULT-II screen is touched.
INDICATORThis test is able to check warning lamp operation.
“KEY” Warning lamp illuminates when “KEY IND ON” on CONSULT-II screen is touched.
“KEY” Warning lamp flashes when “KEY IND FSH” on CONSULT-II screen is touched.
LCDThis test is able to check meter display information
Engine start information displays when “BRAKE/P” on CONSULT-II screen is touched.
Engine start information displays when “BRAKE/P/ON” on CONSULT-II screen is touched.
Key ID warning displays when “KEY ID NG” on CONSULT-II screen is touched.
Steering lock information displays when “STLCK RELES” on CONSULT-II screen is touched.
P position warning displays when “P RNG IND” on CONSULT-II screen is touched.
Intelligent Key insert information displays when “INSERT KEY” on CONSULT-II screen is
touched.
Intelligent Key low battery warning displays when “KEY BAT LOW” on CONSULT-II screen is
touched.
Take away through window warning displays when “TK AWAY WDW” on CONSULT-II screen is
touched.
Take away warning display when “TAKE AWAY” on CONSULT-II screen is touched.
OFF position warning display when “IGN OFF WARN” on CONSULT-II screen is touched.
P RANGEThis test is able to check A/T device power supply
A/T device power is supplied when “ON” on CONSULT-II screen is touched.
ENGINE SW ILLUMIThis test is able to check push-ignition switch illumination operation.
Push-ignition switch illumination illuminates when “ON” on CONSULT-II screen is touched.
LOCK INDCATORThis test is able to check LOCK indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
ACC INDCATORThis test is able to check ACC indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
IGNITION ON INDThis test is able to check INGITION ON indicator in push-ignition switch operation.
LOCK indicator in push-ignition switch illuminates when “ON” on CONSULT-II screen is touched.
KEY SLOT ILLUMIThis test is able to check key slot illumination operation.
Key slot illumination flash when “ON” on CONSULT-II screen is touched. Test item Description

BL-128
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
System DescriptionNIS001Y8
The engine start function of Intelligent Key system is a system that makes it possible to start and stop the
engine without removing the key. It verifies the electronic ID using two-way communications when press-
ing the push-button ignition switch while carrying the Intelligent Key, which operates based on the results
of electronic ID verification for Intelligent Key using two-way communications between the Intelligent Key
and the vehicle (Intelligent Key unit).
NOTE:
The driver should always carry the intelligent key at all times.
Intelligent Key has 2 IDs (for Intelligent Key and for immobilizer). It can perform the door lock/unlock oper-
ation and the push-button ignition switch operation when carrying the registered Intelligent Key.
When the Intelligent Key battery is discharged, it can be used as emergency by inserting the Intelligent
Key to the key slot. At that time, perform the immobilizer ID verification. If it is used when carrying the
Intelligent Key, perform the Intelligent Key ID verification.
If the ID is successfully verified, and when push-button ignition switch is pressed, steering lock will be
released and initiating the engine will be possible.
If the door lock/unlock operation is performed when the Intelligent Key battery is discharged, all doors
lock/unlock can be performed by operating the driver door key cylinder using the mechanical key set into
the Intelligent Key.
Intelligent Key can be registered up to 4 keys (Including the standard Intelligent Key) on request from the
owner.
NOTE:
Refer to BL-44, "INTELLIGENT KEY SYSTEM" for any functions other than engine start function of
Intelligent Key system.
10. Unified meter and A/C amp M64,
M6511. Combination meter M52 12. Security indicator
(Multifunction switch) M69
13. Steering lock unit M35
(Steering column)14. Remote keyless entry receiver
(View with instrument lower panel
RH removed) M89 15. Key slot M14
PIIB5896E

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-144
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
10 VPush-button ignition
switch ON indicatorONPush-button ignition switch is in ON
position0
—Push-button ignition switch is in any
position
(Except ON position)1.2
11 P Stop lamp switch —Brake pedal depressed Battery voltage
Brake pedal released Battery voltage
12 L/RPush-button ignition
switch illumination—Push-button ignition switch illumina-
tion is turned on2.6
Push-button ignition switch illumina-
tion is turned off
(15 seconds or more after the driver
door is closed)0
13 LG/B Key slot illumination LOCKInsert Intelligent Key into key slot and
driver side door is open.Battery voltage
Remove Intelligent Key from key slot. 0
15 LGSteering lock unit
power sourceLOCK — Battery voltage
16 P/BSteering lock unit sig-
nalLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock
(Unlocked moment)0
NO 0
17 OSteering lock unit con-
dition signal-1LOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
18 L/YSteering lock unit con-
dition signal-2LOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
19 BR/Y Key switch signal LOCKInsert Intelligent Key into key slot. 0
Remove Intelligent Key from key slot Battery voltage
20 B Ground — — 0
27 VA/T device (Detention
switch)LOCK A/T selector lever is in P position 0
ON Other than above Battery voltage
28 SB Starter relayON A/T selector lever is in N or P position Battery voltage
—Ignition switch position is in LOCK
position or A/T selector lever is in any
position other than N or P position0
29 V/R Stop lamp switch —Brake pedal depressed Battery voltage
Brake pedal released 0
30 L/WIgnition power supply
(ACC)ACCIgnition switch position is in ACC or
ON positionBattery voltage
31 GRIgnition power supply
(ON)ONIgnition switch position is in ON or
START positionBattery voltage
33 O PDU signalLOCK Steering lock: Lock 0
ACC Steering lock: Unlock 8 Te r m i -
nal
No.Wire
color
ItemCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2006 January2006 M35/M45
34 R PDU feed back signalLOCKSleep condition (30 seconds or more
after all doors are closed under the
condition that the ignition switch posi-
tion is in the LOCK position)1
—Wake-up condition (any condition
other than above)0
35 LG Vehicle speed signal ONAt speedometer operation (vehicle
speed approx. 40 km/h)
37 P CAN-L — — —
38 L CAN-H — — —
39 BR/WPush-button ignition
switch—Push-button ignition switch is pressed 0
Push-button ignition switch is released Battery voltage
40 B Ground — — 0
41 Y Power source (fuse) — — Battery voltage
42 P PDU wake up signalLOCKSleep condition (30 seconds or more
after all doors are closed under the
condition that the ignition switch posi-
tion is in the LOCK position)Battery voltage
— Wake-up condition (Open driver door) 0
43 G Starter signalON At starter motor cranking 0
— Any condition other than above Battery voltage
46 VSteering lock control
signal-1—Push-button ignition switch is pressed
under the condition that Intelligent Key
is in the vehicle or Intelligent Key is
insertedBattery voltage
LOCKIgnition switch position is in LOCK
position (Steering lock activated)Battery voltage
0 Battery voltage
(Battery voltage is detected when acti-
vating the steering lock)
47 LGInside key antenna (+)
signal
(Instrument center)
LOCK Any door open
closed
(Door switch: ON
OFF)
48 VInside key antenna (–)
signal
(Instrument center)
49 BInside key antenna (+)
signal
(console)
LOCKAny door open
closed
(Door switch: ON
OFF)
50 WInside key antenna (–)
signal
(console) Te r m i -
nal
No.Wire
colorItemCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
PKIA1935E
SIIA1910J
SIIA1910J