lock INFINITI FX35 2007 Service Manual

BL-184
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 July 2007 FX35/FX45

through back door closure motor terminal 8

through body grounds B15 and B45.
VEHICLE SECURITY SYSTEM ALARM OPERATION
The vehicle security system is triggered by

opening a door

opening the back door

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), 58 (back door),
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 from IPDM E/R terminals 38 and 60.
When headlamp high relay (with built-in IPDM E/R) and horn relay are energized and 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 back door must be unlocked with the key, key fob or
Intelligent Key.
When the key is used to unlock a door, BCM terminal 22 receives signal

from terminal 14 of the power window main switch (door lock and unlock switch).
When the BCM receives either one of these signals or unlock signal from key cylinder switch, key fob or Intel-
ligent Key, the vehicle security system is deactivated. (Disarmed phase)
PANIC ALARM OPERATION
Remote keyless entry system may or may not operate vehicle security system (horn and headlamps) as
required.
When the remote keyless entry system is triggered, ground is supplied intermittently from IPDM E/R terminals
38 and 60.
When headlamp relay (which built-in IPDM E/R) and horn relay are energized and 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 key fob or Intelligent
Key.
CAN Communication System DescriptionNIS001P4
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 UnitNIS001P5
Refer to LAN-49, "CAN System Specification Chart" .

VEHICLE SECURITY (THEFT WARNING) SYSTEM BL-193
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Revision: 2006 July 2007 FX35/FX45
Data Monitor
Active Test
Monitored Item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
KEY ON SW Indicates [ON/OFF] condition of key switch.
TRUNK OPNR SW This is displayed even when it is not equipped.
TRUNK CYL SW This is displayed even when it is not equipped.
TRUNK OPN MNTR This is displayed even when it is not equipped.
KEYLESS LOCK Indicates [ON/OFF] condition of lock signal from key fob.
KEYLESS UNLOCK Indicates [ON/OFF] condition of unlock signal from key fob.
KEYLESS TRUNK Indicates [ON/OFF] condition of trunk opener signal from key fob.
HOOD SW Indicates [ON/OFF] condition of hood switch.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch LH.
DOOR SW-AS Indicates [ON/OFF] condition of front door switch RH.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
BACK DOOR SW Indicates [ON/OFF] condition of back door switch.
KEY CYL LK SW Indicates [ON/OFF] condition of lock signal from key cylinder switch.
KEY CYL UN SW Indicates [ON/OFF] condition of unlock signal from key cylinder switch.
CDL LOCK SW Indicates [ON/OFF] condition of lock signal from door lock/unlock switch LH and RH.
CDL UNLOCK SW Indicates [ON/OFF] condition of unlock signal from door lock/unlock switch LH and RH.
Test Item Description
THEFT IND This test is able to check security indicator lamp operation. The lamp will be turned on when “ON”
on CONSULT-II screen is touched.
ANTI THEFT HORN This test is able to check vehicle security horn operation. The horns will be activated for 0.5 sec-
onds after “ON” on CONSULT-II screen is touched.
HEADLAMP(HI) This test is able to check vehicle security lamp operation. The headlamps will be activated for 0.5
seconds after “ON” on CONSULT-II screen is touched.

BL-194
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 July 2007 FX35/FX45
Trouble DiagnosisNIS001PB
WORK FLOW

“POWER DOOR LOCK SYSTEM” Diagnosis; refer to BL-37, "Work Flow" .

“REMOTE CONTROL SYSTEM” Diagnosis; refer to BL-66, "Work Flow" .

“INTELLIGENT KEY SYSTEM” Diagnosis; refer to BL-115, "WORK FLOW" .
PIIA6909E

BL-196
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 July 2007 FX35/FX45
Trouble Diagnosis Symptom ChartNIS001PD
*1: Make sure the system is in the armed phase. Procedure
Diagnostic procedure Refer to page
Symptom
1 Vehicle security
system cannot be
set by ···· Door switch Diagnostic Procedure 1 (Check door, hood and back door switch)
BL-197
Lock / unlock switch Diagnostic Procedure 6 (Check door lock / unlock switch)BL-204
Door outside key Diagnostic Procedure 3 (Check door key cylinder switch)BL-204
Key fob Check remote keyless entry. BL-54
Intelligent Key Check Intelligent Key.BL-86
— If the above systems are “OK”, replace BCM.BCS-14
Security indicator does not turn “ON”. Diagnostic Procedure 2 (Check security indicator lamp)
BL-203If the above systems are “OK”, replace BCM.BCS-14
2 *1 Vehicle secu-
rity system does
not alarm when
···· Any door is opened. Diagnostic Procedure 1 (Check door, hood and back door switch)
BL-197If the above systems are “OK”, replace BCM.BCS-14
3 Vehicle security
alarm does not
activate. Horn alarm
Diagnostic Procedure 4 (Check vehicle security horn alarm)
BL-204
Check horn function. BL-80
If the above systems are “OK”, replace BCM.BCS-14
Head lamp alarm Diagnostic Procedure 5 (Check head lamp alarm)
BL-204If the above systems are “OK”, replace BCM.BCS-14
4 Vehicle security
system cannot be
canceled by ···· Door outside key
Diagnostic Procedure 3 (Check door key cylinder switch)
BL-204
If the above systems are “OK”, check power window main switch. EI-36
Key fob Check remote keyless entry function.
BL-55If the above systems are “OK”, replace BCM.BCS-14
Intelligent Key Check Intelligent Key
BL-88If the above systems are “OK”, replace BCM.BCS-14

VEHICLE SECURITY (THEFT WARNING) SYSTEM BL-203
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Diagnostic Procedure 2NIS001PF
SECURITY INDICATOR LAMP CHECK
1. SECURITY INDICATOR LAMP ACTIVE TEST
With CONSULT-II
Check (“THEFT IND”) in “ACTIVE TEST” mode with CONSULT-II.
Without CONSULT-II
Check voltage between BCM connector and ground.
OK or NG
OK >> Security indicator lamp is OK.
NG >> GO TO 2.
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and security indicator lamp connector.
3. Check continuity between BCM connector M3 terminal 23 and security indicator lamp connector M38 terminal 2.
OK or NG
OK >> Check the following.

Harness for open or short between BCM and security
indicator lamp.

10A fuse [No.19, located in fuse block (J/B)]
NG >> Repair or replace harness between BCM and security indicator lamp.
Perform operation shown on display indicator lamp
should illuminate.
PIIA7005E
Connector Terminals (Wire color)
Condition Voltage (V)
(Approx.)
(+) (-)
M3 23 (G/OR) Ground Illuminates 0
Goes off Battery voltage
PIIA6230E
23 (G/OR) – 2 (G/OR) : Continuity should exist.
PIIA6231E

BL-204
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 July 2007 FX35/FX45
Diagnostic Procedure 3NIS001PG
FRONT DOOR KEY CYLINDER SWITCH CHECK
1. CHECK KEY CYLINDER SWITCH OPERATION
Check door key cylinder switch using key.
Do doors lock / unlock when using the key?
YES >> Front door key cylinder switch operation is OK.
NO >> Check door key cylinder switch circuit. Refer to GW-51, "
Check Front Door Key Cylinder Switch" .
Diagnostic Procedure 4NIS001PH
VEHICLE SECURITY HORN ALARM CHECK
1. CHECK HORN OPERATION
Check if horn sounds with horn switch.
Does horn operate?
YES >> Check harness for open or short between IPDM E/R and horn relay.
NO >> Check horn circuit. Refer to WW-58, "
HORN" .
Diagnostic Procedure 5NIS001PI
VEHICLE SECURITY HEADLAMP ALARM CHECK
1. CHECK HEADLAMP OPERATION
Check if headlamp operates by lighting switch.
Does headlamp come on when turning switch
“ON”?
YES >> Headlamp alarm circuit is OK.
NO >> Check headlamp system. Refer to LT- 6 , "
HEADLAMP - XENON TYPE -" or LT- 3 8 , "DAYTIME
LIGHT SYSTEM" .
Diagnostic Procedure 6NIS001PJ
DOOR LOCK AND UNLOCK SWITCH CHECK
1. CHECK DOOR LOCK AND UNLOCK SWITCH INPUT SIGNAL
Check if power door lock operated by door lock and unlock switch.
Do doors lock / unlock when using each door lock and unlock switches?
YES >> Door lock and unlock switch is OK.
NO >> Check door lock and unlock switch. Refer to BL-46, "
Check Door Lock and Unlock Switch" .

BL-206
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 July 2007 FX35/FX45
System DescriptionNIS001PL
DESCRIPTION
IVIS (Infiniti Vehicle Immobilizer System – NATS) has the following immobilizer functions:

Engine immobilizer shows high anti-theft performance to prevent engine start by other than the owner
(registered key: ignition key, mechanical key and Intelligent Key).

Only a key with key ID registered in BCM and ECM can start engine, and shows high anti-theft perfor-
mance to prevent key from being copied or stolen.

In the vehicle without Intelligent Key system, security indicator always flashes with other than ignition
switch ON or START position.

In the vehicle with Intelligent Key system, security indicator always flashes with mechanical key removed
condition (key switch OFF) and ignition knob released condition on LOCK position (ignition knob switch
OFF).

Therefore, IVIS (NATS) warns outsiders that the vehicle is equipped with the anti-theft system.

If system detects malfunction, it turns on security indicator in ignition switch ON position.

If the owner requires, mechanical key ID can be registered for up to 5 keys.

During trouble diagnosis or when the following parts have been replaced, and if ignition key or mechanical
key is added, registration* is required.
*: All keys kept by the owner of the vehicle should be registered with ignition key or mechanical key.
–ECM
–BCM
–Ignition key (models without Intelligent Key system)
–Mechanical key (models with Intelligent Key system)

IVIS (NATS) trouble diagnoses, system initialization and additional registration of other IVIS (NATS) igni-
tion key or mechanical key IDs must be carried out using CONSULT-II hardware and CONSULT-II IVIS
(NATS) software. When IVIS (NATS) initialization has been completed, the ID of the inserted ignition key
or mechanical key or mechanical key IDs can be carried out.
Regarding the procedures of IVIS (NATS) initialization and ignition key or mechanical key ID registration,
refer to CONSULT-II operation manual, NATS-IVIS/NVIS.
SECURITY INDICATOR

Warns that the vehicle has IVIS (NATS).

In the vehicle without Intelligent Key system, security indicator always flashes with other than ignition
switch ON or START position. In the vehicle with Intelligent Key system, security indicator always flashes
with mechanical key removed condition (key switch OFF) and ignition knob released condition on LOCK
position (ignition knob switch OFF).
NOTE:
Because security indicator is highly efficient, the battery is barely affected.
Condition of Security Indicator
WITHOUT INTELLIGENT KEY SYSTEM
WITH INTELLIGENT KEY SYSTEM

In ignition knob operation with Intelligent Key, it always turns on with pushing ignition knob, and always
flashes with ignition knob released (ignition knob switch OFF) condition on ignition knob “LOCK” position.

In ignition knob operation with mechanical key, it turns off on the condition that mechanical key is inserted
in key cylinder, and always flashes with ignition knob released (ignition knob switch OFF) condition on
mechanical key removed condition.
Security indicator
condition Ignition key
Operation or condition of ignition key
Ignition switch: ON position Ignition switch:
ACC position Ignition switch:
OFF position
(Key is inserted.) Ignition switch:
OFF position
(Remove key.)
Register key OFF Flashing Flashing Flashing
Ignition key not
registered ON Flashing Flashing Flashing

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-207
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System CompositionNIS001PM
The immobilizer function of the IVIS (NATS) consists of the following:

Ignition key (models without Intelligent Key system)

Mechanical key (models with Intelligent Key system)

NATS antenna amp.

Steering lock unit. (models with Intelligent Key system)

BCM

Intelligent Key unit (models with Intelligent Key system)

Engine control module (ECM)

Security indicator
NOTE:
The communication between ECM, BCM and/or Intelligent Key unit uses the CAN communication sys-
tem.
ECM Re-Communicating FunctionNIS001PN
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. Using a registered 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”.
5. Start engine. If engine can be started, procedure is completed.
If engine cannot be started, refer to CONSULT-II Operation Manual NATS-IVIS/NVIS and initialize control
unit.
PIIA6948E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS) BL-211
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Terminals and Reference Value for Steering Lock Unit/with Intelligent Key Sys-
tem
NIS001PP
Terminals and Reference Value for Intelligent Key Unit/with Intelligent Key Sys-
tem
NIS001PQ
Te r -
minal Wire
color Signal Designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1 L/R Power source (Fuse) Input LOCK — Battery voltage
2R/W Steering lock unit
power supply Input LOCK — 5
3R/B Steering lock unit com-
munication signal Input LOCK Press ignition knob with Intel-
ligent Key inside vehicle.
Other than the above 5
4Y/B Steering lock unit
ground —— — 0
SIIA1911J
Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
1R/W Steering lock unit power
supply Output LOCK — 5
2 L CAN-H Input/
Output —— —
3 P CAN-L Input/
Output —— —
6W Ignition power supply
(ON) Input ONIgnition knob ON or START
position Battery voltage
7 B/W Key switch Input LOCK Insert mechanical key into
ignition key cylinder. Battery voltage
Remove mechanical key
from ignition key cylinder. 0
11 L/R Power source (Fuse) Input — — Battery voltage
12 B Ground — — — 0
27 L/W Ignition knob switch Input — Press ignition knob. Battery voltage
Return ignition knob to
LOCK position. 0
31 Y/B Steering lock unit
ground —— — 0
32 R/B Steering lock unit com-
munication signal Output LOCK Press ignition knob with
Intelligent Key inside vehi-
cle.
Other than the above 5
SIIA1911J

BL-212
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for BCMNIS001PR
*: With Intelligent Key system Te r -
minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
21 G/B NATS antenna amp. Input/
Output —
Ignition knob OFF
→ ON
position Tester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp Output LOCK Goes OFF
→ illuminates
(Every 2.4 seconds) Battery voltage
→ 0
25 BR NATS antenna amp. Input/
Output —Ignition knob or switch OFF
→ ON position Tester pointer should move just
after turning ignition knob “ON”
37* B/W Key switch Input — Insert mechanical key into
ignition key cylinder Battery voltage
Remove mechanical key
from ignition key cylinder 0
38 W/L Ignition power supply
(ON) Input ONIgnition knob ON or START
position Battery voltage
39 L CAN-H Input/
Output —— —
40 P CAN-L Input/
Output —— —
42 L/R Power source (Fuse) Input — — Battery voltage
49 B Ground — — — 0
52 B Ground — — — 0
55 G Power source (Fuse) Input — — Battery voltage