2006 INFINITI M35 lock

BL-116
INTELLIGENT KEY SYSTEM
Revision: 2006 January2006 M35/M45
3. CHECK PARK POSITION SWITCH
1. Disconnect A/T device connector.
2. Check A/T device.
OK or NG
OK >> GO TO 4.
NG >> Check A/T shift lock system. Refer to AT- 2 2 9 , "
A/T
SHIFT LOCK SYSTEM" .
4. CHECK HARNESS CONTINUITY 1
1. Disconnect A/T device connector.
2. Check continuity between Intelligent Key unit connector and A/T device connector.
3. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between Intelligent Key and A/T device.
5. CHECK HARNESS CONTINUITY 2
1. Check continuity between Intelligent Key unit connector and A/T device connector.
2. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> Check the condition of harness and connector.
NG >> Repair or replace harness between Intelligent Key and A/T device.
Terminal
A/T device
positionContinuity
A/T device
910PYes
Other than above No
PIIB6354E
AB
Continuity
Intelligent Key
unit connectorTe r m i n a lA/T device
connectorTerminal
M32 27 M133 10 Yes
A
GroundContinuity
Intelligent Key unit
connectorTerminal
M32 27 No
PIIB6355E
AB
Continuity
Intelligent Key
unit connectorTe r m i n a lA/T device
connectorTerminal
M33 58 M133 9 Yes
A
GroundContinuity
Intelligent Key unit
connectorTerminal
M33 58 No
PIIB6356E

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
Check Ignition Switch PositionNIS001XY
1. CHECK IGNITION POWER SUPPLY
Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Ignition power supply is OK.
NG >> Check the following.
Repair or replace Intelligent Key unit power supply circuit.
Check 10A fuse [No. 6, located in the fuse block (J/B)]
Check 10A fuse [No. 12, located in the fuse block (J/B)]
Check Remote Keyless Entry ReceiverNIS001XZ
1. CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Check signal between remote keyless entry receiver connector and ground with oscilloscope.
OK or NG
OK >> Remote keyless entry receiver is OK.
NG >> GO TO 2.
Te r m i n a l s
Ignition switch position
(+)
(–) Intelligent
Key unit
connectorTerminal OFF ACC ON
M3230
Ground0 Battery voltage Battery voltage
31 0 0 Battery voltage
PIIB6357E
Terminals
Keyfob
conditionSignal
(Reference value) (+)
(–) Remote
keyless
entry
receiver
connectorTerminal
M89 2 GroundNo function
Any button
is pressed
PIIB6358E
OCC3879D
OCC3880D

BL-126
INTELLIGENT KEY SYSTEM
Revision: 2006 January2006 M35/M45
Intelligent Key Battery ReplacementNIS001Y6
DISASSEMBLY AND ASSEMBLY OF INTELLIGENT KEY
1. Release the lock knob at the back of the Intelligent Key and remove the machanical key.
2. Insert a flat-blade screwdriver (A) wrapped with a close into the
slit of the corner and twist it to separate the upper part from the
lower part.
CAUTION:
Be careful not to touch the circuit board or battery termi-
nal.
The key fob is water-resistant. However, if it does get wet,
immediately wipe it dry.
3. Replace the battery with new one.
4. Align the tips of the upper and lower parts, and then push them
together until it is securely closed.
CAUTION:
When replacing battery, be sure to keep dirt, grease, and
other foreign materials off the electrode contact area.
After replacing the battery, check to make sure all Intelli-
gent Key functions work normally.
INTELLIGENT KEY BATTERY INSPECTION
Check by connecting a resistance (approximately 300) so that the
current value becomes about 10 mA.
PIIB6221E
PIIB6222E
Standard : Approx. 2.5 - 3.0V
OCC0607D

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2006 January2006 M35/M45
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTIONPFP:285F1
Component Parts and Harness Connector LocationNIS001Y7
1. Fuse block (J / B) fuse layout 2. Fuse and fusible link box 3. BCM (View with instrument lower
panel RH removed) M1, M2
4. Intelligent key unit (View with dash
side finisher LH removed) M32, M335. PDU (View with combination meter
removed) M30, M316. IPDM E/R (Engine room) E4, E9
7. ECM (View with instrument lower
cover RH removed) M718. Push-button ignition switch M27 9. Stop lamp switch E124
PIIB5894E

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-130
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
starter motor relay. (If the engine initiating has failed, the cranking will stop automatically within 5 sec-
onds.)
CAUTION:
When the Intelligent Key is carried outside of the vehicle (inside key antenna detection area) with
the power supply in ACC or ON position, even if the engine start condition* is satisfied, the engine
cannot be started.
*: For the engine start condition, refer to BL-130, "
PUSH-BUTTON IGNITION SWITCH OPERATION PROCE-
DURE" .
Operation Range
Engine can be started when Intelligent Key is inside the vehicle. However, sometimes engine might not start
when Intelligent Key is on instrument panel or in glove box.
OPERATION WHEN KEY SLOT IS USED
When the Intelligent Key battery is discharged, it performs the immobilizer ID verification between the inte-
grated transponder and BCM by inserting the Intelligent Key into the key slot, and then the engine can be
started.
For details relating to starting the engine using key slot, refer to BL-248, "
IVIS (INFINITI VEHICLE IMMOBI-
LIZER SYSTEM-NATS)" .
PUSH-BUTTON IGNITION SWITCH OPERATION PROCEDURE
The power supply position changing operation can be performed with the following operation.
NOTE:
When an Intelligent Key is within the detection area of inside key antenna and when it is inserted to the
key slot, it is equivalent to the operations below.
When starting the engine, the Intelligent Key unit monitors the engine start conditions (brake pedal operat-
ing condition, A/T selector lever position, and vehicle speed).
Unless each start condition is fulfilled, the engine will not respond regardless of how many times the
engine switch is pushed. At that time, illumination repeats the position in the order of LOCK
AC-
C
ONLOCK.
Power supply positionEngine start/stop condition
Push-button ignition switch
operation frequency
Brake pedal A/T selector lever position
LOCK
ACCNot depressed
(When A/T selector lever is in any
position other than P or N, there
will be no effect even if it is
depressed.)Any position other than P or N
(When the brake pedal is not
depressed, there will be no effect
even if the A/T selector lever is in
P or N position.)1
LOCK
ACC ONNot depressed
(When A/T selector lever is in any
position other than P or N, there
will be no effect even if it is
depressed.)Any position other than P or N
(When the brake pedal is not
depressed, there will be no effect
even if the A/T selector lever is in
P or N position.)2
LOCK
ACC ON
LOCKNot depressed
(When A/T selector lever is in any
position other than P or N, there
will be no effect even if it is
depressed.)Any position other than P or N
(When the brake pedal is not
depressed, there will be no effect
even if the A/T selector lever is in
P or N position.)3
LOCK
START
ACC
START
ON
START
(Engine start)Depressed P or N position (*1)1
[If the switch is pushed once,
the engine starts from any
power supply position (LOCK,
ACC, and ON)]
Engine is running

LOCK
(Engine stop)— P position 1

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2006 January2006 M35/M45
Terminals and Reference Value for Intelligent Key UnitNIS001YE
Te r m i -
nal
No.Wire
colorItemCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
1 SB Power source (fuse) — — Battery voltage
3 Y IPDM E/R status signalSTART Engine starting (During cranking) 5
LOCK Other than above 2
4 B/Y RSSI signal LOCKCarry the Intelligent Key within the
inside key antenna detection area,
and then push the push-button ignition
switch.0
Other than above
5B/WRemote key less entry
receiver signalLOCKCarry the Intelligent Key within the
inside key antenna detection area,
and then push the push-button ignition
switch.
(When receiving the signal from Intelli-
gent Key)
Other than above
(Signal receiving wait mode)
6BRemote key less entry
receiver ground—— 0
7B/RRemote keyless entry
receiver power supply——
8WPush-button ignition
switch LOCK indicatorLOCKPush-button ignition switch is in LOCK
position0
—Push-button ignition switch is in any
position
(Except LOCK position)1.2
9LPush-button ignition
switch ACC indicatorACCPush-button ignition switch is in ACC
position0
—Push-button ignition switch is in any
position
(Except ACC position)1.2
PIIB5657J
OCC3880D
OCC3879D
OCC3881D