key INFINITI M35 2007 Factory Service Manual

BL-242
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2007 April2007 M35/M45
Diagnostic Procedure 3NIS00207
FRONT DOOR KEY CYLINDER SWITCH CHECK
1. CHECK KEY CYLINDER SWITCH OPERATION
Check if door key cylinder switch using mechanical key.
Do doors lock / unlock when using the mechanical key?
YES >> Front door key cylinder switch operation is OK.
NO >> Check door key cylinder switch circuit. Refer to BL-41, "
Door Key Cylinder Switch Check" .
Diagnostic Procedure 4NIS00208
VEHICLE SECURITY HORN ALARM CHECK
First perform the “SELF-DIAG RESULTS” of “BCM” with CONSULT-II, then perform the trouble diagno-
sis of malfunction system indicated in “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-13, "
CAN Com-
munication Inspection Using CONSULT-II (Self-Diagnosis)".
1. CHECK HORN OPERATION
Check if horn sounds with horn switch.
Does horn operate?
Yes >> GO TO 2.
No >> Check horn circuit. Refer to WW-54, "
HORN" .
2. CHECK IPDM E/R INPUT SIGNAL
Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Replace IPDM E/R.
NG >> GO TO 3.
3. CHECK HORN RELAY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R and horn relay connector.
3. Check continuity between IPDM E/R connector and horn relay connector.
OK or NG
OK >> Check harness connection.
NG >> Repair or replace harness.
Terminals
Voltage (V)
(Approx.) (+)
(–)
IPDM E/R
connectorTerminal
E9 48 Ground Battery voltage
PIIB6219E
AB
Continuity
IPDM E/R
connectorTe r m i n a lHorn relay
connectorTerminal
E9 48 E20 1 Yes
PIIB6220E

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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)PFP:28591
Component Parts and Harness Connector LocationNIS0020C
1. Fuse block (J/B) fuse layout 2. Fuse and fusible link box 3. BCM M1, M2, M3 (View with instru-
ment lower panel RH removed)
4. Intelligent key unit M32, M33 (View
with dash side finisher LH removed) 5. PDU M30, M31 (View with combina-
tion meter removed)6. IPDM E/R E4, E9
(Engine room)
7. ECM M71 (View with instrument
lower panel RH removed)8. Push-button ignition switch M27 9. Stop lamp switch E124
PIIB5894E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Revision: 2007 April2007 M35/M45
NOTE:
If customer reports a “No start” condition, request ALL KEYS to be brought to an INFINITI dealer to
check for an IVIS (NATS) malfunction.
10. Unified meter and A / C amp M64, M65 11. Combination meter M52 12. Multifunction switch M69
(Security indicator)
13. Steering lock unit M35
(Steering column)
PIIB5895E

BL-246
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
System DescriptionNIS0020D
DESCRIPTION

The IVIS (NATS) is an anti-theft system by registering an Intelligent Key ID in to the vehicle and prevents
the engine being started by an unregistered Intelligent Key. It has a higher protection against auto thefts
that duplicates mechanical key.

It performs the ID verification when starting the engine in the same way as the Intelligent Key system. But,
it performs the IVIS (NATS) ID verification when inserting the Intelligent Key and performs the Intelligent
Key ID verification when carrying the Intelligent Key.

The Intelligent Key system of FUGA (Y50) is not the same as the conventional models. The mechanical
key integrated in the Intelligent Key cannot start the engine. When the Intelligent Key battery is dis-
charged, the IVIS (NATS) ID verification memorized to the transponder integrated with Intelligent Key is
performed by inserting the Intelligent Key into the key slot. If the verification results are OK, the engine
start operation can be performed by the push-button ignition switch operation.

Locate the security indicator and apply the anti-theft system equipment sticker, forewarn that the IVIS
(NATS) is onboard with the model.

The security indicator always blinks when the Intelligent Key is removed from the key slot and when the
power supply position is in LOCK position.

Intelligent Key can be registered up to 4 keys (Including the standard ignition key) on request from the
owner.

The specified registration is required when replacing ECM, BCM or Intelligent Key. The registrations pro-
cedure for IVIS (NATS) and registration procedure for Intelligent Key when installing the Intelligent Key
unit, refer to CONSULT-II Operation Manual NATS-IVIS/NVIS.

Possible symptom of IVIS (NATS) malfunction is “Engine cannot start”. In FUGA (Y50), the engine can be
started with the Intelligent Key system and IVIS (NATS). Identify the possible causes according to “Work
Flow”, Refer to BL-269, "
Work Flow" .

If ECM other than Genuine NISSAN is installed, the engine cannot be started. For ECM replacement pro-
cedure, refer to BL-248, "
ECM Re-Communicating Function" .
PRECAUTIONS FOR KEY REGISTRATION

The key registration is a procedure that erases the current IVIS (NATS) ID once, and then re register a
new ID operation. Therefore the registered Intelligent Key is necessary for this procedure. Before starting
the registration operation collect all registered Intelligent Key from the customer

When registering the Intelligent Key, 2 registration procedures [IVIS (NATS) ID registration and Intelligent
Key ID registration] should be performed. The IVIS (NATS) ID registration is the procedure that registers
the ID stored into the transponder (integrated into Intelligent Key) to the BCM. The Intelligent Key ID reg-
istration is the procedure that registers the ID to the Intelligent Key unit. Each registration procedure
should be done separated.

When performing the Intelligent Key system registration only, the engine cannot be started by inserting the
key into the key slot. When performing the IVIS (NATS) registration only, the engine cannot be started by
the operation when carrying the key. The registrations of both systems should be performed.
SECURITY INDICATOR

Warn the outside that the vehicle is the model with IVIS (NATS).

The security indicator always blinks when the Intelligent Key is removed from the key slot and when the
ignition switch is in LOCK position.
NOTE:
Because security indicator is highly efficient, the battery is barely affected.

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Revision: 2007 April2007 M35/M45
Operation DescriptionNIS0020E
SYSTEM DIAGRAM
OPERATION WHEN INSERTING TO KEY SLOT
1. When inserting the Intelligent Key (with transponder) into the key slot, the key switch in the key slot turns
ON, and then it is detected that the Intelligent Key is inserted.
2. When pressing the push-button ignition switch at that time, BCM starts the IVIS (NATS) antenna amplifier
integrated with the key slot and starts the IVIS (NATS) ID communication with the transponder integrated
with the Intelligent Key.
3. BCM sends the IVIS (NATS) ID verification result to ECM via CAN communication and performs the ID
verification.
4. If the IVIS (NATS) ID verification result is OK, BCM sends the key ID verification OK signal to Intelligent
Key unit via CAN communication line.
5. The Intelligent Key unit sends the steering unlock signal to the steering lock unit when receiving the sig-
nal. Then, it sends each power supply request signal to PDU (Power Distribution Unit) after unlocking the
steering lock.
6. 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.
7. The steering lock unit unlocks the latch when receiving the signal. PDU starts the power distribution
according to the power supply position when receiving the signal.
NOTE:
If it is not in the engine start condition*, the starter motor relay is turned OFF. Therefore, the engine cannot be
started and the power distributions of ACC, ON, and LOCK are performed only according to the push-button
ignition switch operation.
*: For the engine start condition, refer to BL-247, "
PUSH-BUTTON IGNITION SWITCH OPERATION PROCE-
DURE" .
OPERATION WHEN INTELLIGENT KEY IS CARRIED
By carrying the Intelligent Key, the engine start/stop operation can be performed only when pushing the push-
button ignition switch.
For the details of the function, refer to BL-125, "
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION" .
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 carried and when it is inserted to the key slot, the following operation is the
same.

When starting the engine, the Intelligent Key unit monitors the engine start conditions (brake pedal opera-
tion, A/T selector lever position, vehicle speed, and steering lock condition).
PIIB6277E

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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45

Unless each start condition is fulfilled, the engine will not response regardless of how many times the
push-button ignition switch is pushed. At that time, illumination repeats the position in the order of LOCK
→ ACC → ON → LOCK.
*1: When the A/T selector lever position is N position, the engine start condition is different according to the vehicle speed.

At vehicle speed of 5 km/h or less, the engine can start only when the brake pedal is depressed.

At vehicle speed of 5 km/h or more, the engine can start even if the brake pedal is not depressed. (It is the same as “Engine stall
return operation while driving”.)
*2: When the A/T selector lever position is in any position other than P position and when the vehicle speed is 5 km/h or more, the
engine stop condition is different.

Press and hold the push-button ignition switch for 2 seconds or more. (When the push-button ignition switch is pressed for too short
a time, the operation may be invalid, so properly press and hold to prevent the incorrect operation.)

Press the push-button ignition switch 3 times within 1.5 seconds. (Emergency stop operation)
ECM Re-Communicating FunctionNIS0020F
Performing following procedure can automatically perform re-communication of ECM and BCM or Intelligent
Key unit, but only when the ECM has been replaced with a new one (*1).
*1: New one means a virgin ECM which has never been energized on-board.
(In this step, initialization procedure by CONSULT-II is not necessary)
NOTE:

When registering new Key IDs or replacing the ECM other than brand new, refer to CONSULT-II
Operation Manual NATS-IVIS/NVIS.

If multiple keys are attached to the key holder, separate them before work.

Distinguish keys with unregistered key ID from those with registered ID.
1. Install ECM.
2. Insert the registered Intelligent Key (*2), turn ignition switch to “ON”.
*2: To perform this step, use the key that has been used before performing ECM replacement.
3. Maintain ignition switch in “ON” position for at least 5 seconds.
4. Turn ignition switch to “OFF”.
Power supply positionEngine start/stop condition
Engine switch operation fre-
quency
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 start condition → LOCK
(Engine stop)— P position 1
Engine start condition → ACC
(Engine stop)— Any position other than P (*2) 1
Engine stall return operation
while driving— N position 1

BL-260
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for Intelligent Key UnitNIS0020I
Termi-
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
1 SB Power source (fuse) Input — — Battery voltage
3YIPDM E/R current sig-
nalInputSTART At starter motor cranking 5
LOCK Any condition other than above 2
8WPush-button ignition
switch LOCK indicatorOutputLOCKPower supply position is in LOCK
position0
—Power supply position is in any
position other than LOCK1.2
9LPush-button ignition
switch ACC indicatorOutputACCPower supply position is in ACC
position0
—Power supply position is in any
position other than ACC1.2
10 VPush-button ignition
switch ON indicatorOutputONPower supply position is in ON
position0
—Power supply position is in any
position other than ON1.2
13 LG/B Key slot illumination Output LOCKDriver door is opened under the
condition that the Intelligent Key is
inserted into the key slot0 → Battery voltage → 0
Intelligent Key is removed from
key slot (when key slot illumination
is turned off)0
15 LGSteering lock unit
power sourceOutput LOCK — Battery voltage
16 P/BSteering lock unit sig-
nalInput/
OutputLOCK Steering lock: Lock Battery voltage
ACCSteering lock: Unlock
(Unlocked moment)0
19 BR/Y Key switch Input LOCKIntelligent Key is inserted into key
slotBattery voltage
Intelligent Key is removed from
key slot0
20 B Ground — — — 0
27 VA/T device (Detention
switch)InputLOCK A/T selector lever is in P position 0
ONA/T selector lever is in any posi-
tion other than PBattery voltage
28 SB Starter relay InputONA/T selector lever is in N or P posi-
tionBattery voltage
—Power supply 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 Input —Brake pedal depressed Battery voltage
Brake pedal released 0
30 L/WIgnition power supply
(ACC)Input ACCPower supply position is in ACC
positionBattery voltage
31 GRIgnition power supply
(ON)Input ONPower supply position is in ON
positionBattery voltage

BL-262
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for Steering Lock UnitNIS0020J
69 OSteering lock unit con-
dition signal-1InputLOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
70 L/YSteering lock unit con-
dition signal-2InputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
71 LG PDU signal OutputLOCK Steering lock: Lock Battery voltage
ACC Steering lock: Unlocked moment 0
72 B Ground — — — 0 Termi-
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
Termi-
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-but-
ton ignition
switch posi-
tionOperation or conditions
1 GR PDU signalInput/
OutputLOCKPress push-button ignition
switch with Intelligent Key
inside vehicle0 → Battery voltage → 0
(Battery voltage is detected when
pressing the push-button ignition
switch)
3 O Condition signal-1 InputLOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
4P/BIntelligent Key unit
signalInputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
5 B Ground — — — 0
6 B Ground — — — 0
7 LG Power source Input — — Battery voltage
8 L/Y Condition signal-2 InputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Terminals and Reference Value for BCMNIS0020K
Terminals and Reference Value for IPDM E/RNIS0020L
Termi-
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-but-
ton igni-
tion
switch
positionOperation or conditions
21 GRNATS antenna
amp.
(Built-in key slot)Input/
OutputLOCKIgnition switch is pressed
while inserting the Intelligent
Key into the key slotJust after pressing ignition switch.
Pointer of tester should move
23 W/V Security indicator Output LOCKIntelligent Key is removed
from key slot and power sup-
ply position is in LOCK posi-
tionBattery voltage → 0
(Every 2.4 seconds)
25 W/RNATS antenna
amp.
(Built-in key slot)Input/
OutputLOCKIgnition switch is pressed
while inserting the Intelligent
Key into the key slotJust after pressing ignition switch.
Pointer of tester should move
37 LGKey slot
(Key switch signal)Input LOCKIntelligent Key is removed
from key slot0
Intelligent Key is inserted into
key slotBattery voltage
38 WIgnition power sup-
ply (ON or START)Input ONPower supply position is in
ON positionBattery voltage
39 L CAN HInput/
Output—— —
40 P CAN LInput/
Output—— —
42 PPower source
(fuse)Input — — Battery voltage
52 B Ground — — — 0
55 WPower source
(Fusible link)Input — — Battery voltage
Te r m i -
nal No.Wire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-button
ignition switch
positionOperation or conditions
4W/RStarter motor power
supplyOutputLOCK — 0
START Starter motor is activating Battery voltage
49 L CAN HInput/
Output—— —
50 P CAN LInput/
Output—— —
53 GR/RA/T Shift position
signalInputON A/T shift position is P/ N position Battery voltage
LOCK Other than above 0

BL-264
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for PDUNIS0020M
Te r -
minal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
1 P Wake up signal InputLOCKSleep condition (30 seconds or
more after all doors are closed
under the condition that the power
supply position is in the LOCK posi-
tion)Battery voltage
—Wake-up condition (Open driver
door)0
2GStarter control sig-
nalInputON At starter motor cranking 0
— Any condition other than above Battery voltage
3GRSteering lock unit
power sourceOutputLOCKPush-button ignition switch is
pressed under the condition that
Intelligent Key is in the vehicle or
Intelligent Key is inserted0 → Battery voltage → 0
— Any condition other than above 0
6VSteering lock control
signal-1Input—Push-button ignition switch is
pressed under the condition that
Intelligent Key is in the vehicle or
Intelligent Key is insertedBattery voltage
LOCKPower supply position is in LOCK
position
(Steering lock activated)Battery voltage → 0 →
Battery voltage
(Battery voltage is detected
when activating the steer-
ing lock)
7LGSteering lock control
signal-2Input—Push-button ignition switch is
pressed under the condition that
Intelligent Key is in the vehicle or
Intelligent Key is insertedBattery voltage
LOCKPower supply position is in LOCK
position
(Steering lock activated)Battery voltage → 0 →
Battery voltage
(Battery voltage is detected
when activating the steer-
ing lock)
9OSteering lock feed
back signalInput—Power supply position is in ACC or
ON position0
LOCKPower supply position is in LOCK
position0 → 8 → 0
(0V is detected when acti-
vating the steering lock)
10 B Ground — — — 0
11 YIPDM E/R current
signalInputSTART At starter motor cranking 5
LOCK Any condition other than above 2
12 R Feed back signal InputLOCKSleep condition (30 seconds or
more after all doors are closed
under the condition that the power
supply position is in the LOCK posi-
tion)1
—Wake-up condition (any condition
other than above)0
13 R Starter relay OutputSTART At starter motor cranking Battery voltage
— Any condition other than above 4