2007 INFINITI M35 key battery

BL-186
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
5. CHECK HARNESS CONTINUITY 2
1. Disconnect BCM connector.
2. Check continuity between BCM connector and key slot connector.
3. Check continuity between BCM connector and ground.
OK or NG
OK >> Replace BCM. Refer to "C/U INITIALIZATION", and then perform the registration again after
replacing BCM.
NG >> Repair or replace harness.
Check NATS Antenna Amp. Built In Key SlotNIS001Z8
For the circuit information of this diagnosis, refer to Engine Immobilizer System Circuit Diagram.
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between key slot connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Check key slot power supply circuit for open or short.
2. CHECK GROUND CIRCUIT
Check continuity between key slot connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
AB
Continuity
BCM connector Terminal Key slot connector Terminal
M1 37 M14 2 Yes
A
GroundContinuity
BCM connector Terminal
M1 37 No
PIIB6261E
Terminals
Voltage (V)
(Approx.) (+)
(–)
Key slot connector Terminal
M14 1 Ground Battery voltage
PIIB6258E
Key slot connector Terminal
GroundContinuity
M14 8 Yes
PIIB6262E

TRUNK LID OPENER
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Revision: 2007 April2007 M35/M45
Trouble DiagnosisNIS001ZS
TRUNK DOSE NOT OPEN WITH TRUNK LID OPENER SWITCH / WITH INTELLIGENT KEY
1. CHECK TRUNK LID OPENER CANCEL SWITCH
Check trunk lid opener cancel switch position.
Does trunk lid opener cancel switch turn OFF (CANCEL)?
Yes >> Turn on trunk lid opener cancel switch.
No >> GO TO 2.
2. CHECK TRUNK LID OPEN INPUT SIGNAL
With CONSULT-II
Check trunk lid opener switch (“TRNK OPNR SW”) in “DATA MONI-
TOR” mode with CONSULT-II.

When trunk lid opener switch is turned to “ON”.
Without CONSULT-II
1. Remove Intelligent Key from key slot.
2. Turn on trunk lid opener cancel switch.
3. Check voltage between BCM connector and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 6.
3. CHECK TRUNK LID OPEN OUTPUT SIGNAL
Check voltage between BCM connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Replace BCM. Refer to BCS-15, "
Removal and Installa-
tion of BCM" . TRNK OPNR SW : ON
PIIA9937E
Terminals
Condition of trunk lid
opener switchVoltage (V)
(Approx.) (+)
(–)
BCM
connectorTerminal
M1 30 GroundON (push and hold) 0
OFF (release) Battery voltage
PIIB6374E
Te r m i n a l s
Condition of
trunk lid opener
switchVoltage (V)
(Approx.) (+)
(–)
BCM
connectorTerminal
M3 68 Ground OFF → ON 0 → Battery voltage → 0
PIIB6375E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Revision: 2007 April2007 M35/M45
System DescriptionNIS001ZU
DESCRIPTION
Operation Flow
Setting the Vehicle Security System
Initial condition

Ignition switch is in OFF position.
Disarmed phase

When hood, doors or trunk is open, the vehicle security system is set in the disarmed phase on the
assumption that the owner is inside or near the vehicle.

When the vehicle security system is in the disarmed phase, the security indicator lamp blinks every 2.4
seconds.
Pre-armed phase and armed phase
When the following operation 1 or 2 is performed, the vehicle security system turns into the “pre-armed”
phase. (The security indicator lamp illuminates.)
1. BCM receives LOCK signal from front door key cylinder switch or Intelligent Key, after hood, trunk and all
doors are closed.
2. Hood, trunk and all doors are closed after front doors are locked by key or door lock and unlock switch.
The security indicator lamp illuminates for 30 seconds. Then, the system automatically shifts into the
“armed” phase.
Canceling the Set Vehicle Security System
When one of the following operations is performed, the armed phase is canceled.
1. Unlock the doors with the key or Intelligent Key.
2. Turn ignition switch “ON” or “ACC” position.
Canceling the Alarm Operation of the Vehicle Security System
When unlock the door with the key or Intelligent Key the alarm operation is canceled.
Activating the Alarm Operation of the Vehicle Security System
Make sure the system is in the armed phase. (The security indicator lamp brinks every 2.4 seconds.)
When the following operation 1 or 2 is performed, the system sounds the horns and flashes the headlamps for
about 50 seconds.
1. Hood, trunk or any door is opened during armed phase.
2. Disconnecting and connecting the battery connector before canceling armed phase.
PIIA1367E

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Revision: 2007 April2007 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-50, "CAN System Specification Chart"

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Revision: 2007 April2007 M35/M45
Terminals and Reference Value of BCMNIS001ZZ
Terminals and Reference Value of IPDM E/RNIS00200
Te r m i -
nal Wire
colorItemSignal
Input/
OutputConditionVoltage [V]
(Approx.)
11 V Power supply (ACC) InputIgnition switch (ACC or ON
position)Battery voltage
12 PFront door switch
passenger side signalInputON (Open) → OFF
(Closed)0 → Battery voltage
13 O/L Rear door switch RH signal InputON (Open) → OFF
(Closed)0 → Battery voltage
22 G Power window serial linkInput/
OutputIgnition switch ON or power
window timer operating
23 W/V Security indicator lamp Output Goes off → Illuminates Battery voltage → 0
37 LG Key switch signal InputKey inserted in key slot →
key removed from key slotBattery voltage → 0
39 L CAN-HInput/
Output——
40 P CAN-LInput/
Output——
42 P Power source (fuse) Input — Battery voltage
52 B Ground — — 0
55 W Battery power supply (fusible link) Input — Battery voltage
56 W Trunk lid key cylinder switch Input Neutral → Unlock Battery voltage → 0
57 SB Trunk room lamp switch signal InputON (Open) → OFF
(Closed)0 → Battery voltage
62 VFront door switch
driver side signalInputON (Open) → OFF
(Closed)0 → Battery voltage
63 R/G Rear door switch LH signal InputON (Open) → OFF
(Closed)0 → Battery voltage
PIIA2344J
Terminal Wire color ItemSignal
Input/OutputConditionVoltage [V]
(Approx.)
38 B Ground (power) — — 0
48 G/B Horn relay control signal OutputPanic alarm is operating 0
Other than above Battery voltage
49 L CAN-H Input/Output — —
50 P CAN-L Input/Output — —
51 B Ground (signal) — — 0
60 LG/B Hood switch signal Input ON (Open) → OFF (closed) 0 → Battery voltage

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
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Continuity
IPDM E/R
connectorTe r m i n a lHorn relay
connectorTerminal
E9 48 E20 1 Yes
PIIB6220E

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.

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