key INFINITI FX35 2008 Service Manual

BL-176
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Trouble Diagnosis
INFOID:0000000001327913
WORK FLOW
 “POWER DOOR LOCK SYSTEM” Diagnosis; refer to BL-36, "Work Flow".
 “REMOTE CONTROL SYSTEM” Diagnosis; refer to BL-62, "
Work Flow".
 “INTELLIGENT KEY SYSTE M” Diagnosis; refer to BL-103, "
Diagnosis Procedure".
PIIA6909E
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VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-177
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Preliminary CheckINFOID:0000000001327914
The system operation is canceled by turning ignition switch to “ACC” at any step between START and ARMED
in the following flow chart.
After performing preliminary check, go to symptom chart. Refer to BL-177, "
Trouble Diagnosis Symptom
Chart".
Trouble Diagnosis Symptom ChartINFOID:0000000001327915
PIIA6910E
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-178
Lock / unlock switch Diagnostic Procedure 6 (Check door lock / unlock switch)BL-184
Door outside key Diagnostic Procedure 3 (Check door key cylinder switch)BL-183
Key fob Check remote keyless entry. BL-50
Intelligent Key Check Intelligent Key.BL-76
— If the above systems are “OK”, replace BCM.BCS-13
Security indicator does not turn “ON”.Diagnostic Procedure 2 (Check security indicator lamp)
BL-182If the above systems are “OK”, replace BCM.BCS-13
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BL-178
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
*1: Make sure the system is in the armed phase.
Diagnosis Procedure 1INFOID:0000000001327916
1 – 1 CHECK DOOR SWITCH
First perform the “SELF-DIAG RESU LTS” in “BCM” with CONSULT-III, when pe rform the each trouble
diagnosis. Refer to BCS-13, "
U1000 CAN Communication Circuit".
1.CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-III
Check (“DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RR” and “DOOR SW-RL”) in “DATA MONITOR” mode
with CONSULT-III.
Without CONSULT-III
Check voltage between BCM connector M3, B14 terminals and ground.
2 *1 Vehicle security
system does not
alarm when ···· Any door is opened.
Diagnostic Procedure 1 (Check door, hood and back door switch)
BL-178If the above systems are “OK”, replace BCM.BCS-13
3Vehicle security
alarm does not ac-
tivate. Horn alarm
Diagnostic Procedure 4 (Check vehicle security horn alarm)
BL-183
Check horn function. BL-72
If the above systems are “OK”, replace BCM.BCS-13
Head lamp alarmDiagnostic Procedure 5 (Check head lamp alarm)
BL-183If the above systems are “OK”, replace BCM.BCS-13
4Vehicle security
system cannot be
canceled by ···· Door outside key
Diagnostic Procedure 3 (Check door key cylinder switch)
BL-183
If the above systems are “OK”, check power window main switch. EI-36
Key fobCheck remote keyless entry function.
BL-50If the above systems are “OK”, replace BCM.BCS-13
Intelligent KeyCheck Intelligent Key
BL-78If the above systems are “OK”, replace BCM.BCS-13
Procedure
Diagnostic procedure Refer to page
Symptom
Monitor item Condition
DOOR SW-DR OPEN : ON
CLOSE : OFF
DOOR SW-AS OPEN : ON
CLOSE : OFF
DOOR SW-RR OPEN : ON
CLOSE : OFF
DOOR SW-RL OPEN : ON
CLOSE : OFF
Item Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
PIIA6223E
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VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-183
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With CONSULT-III
Check (“THEFT IND”) in “ACTIV E TEST” mode with CONSULT-III.
Without CONSULT-III
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 securityindicator lamp.
 10A fuse [No.19, located in fuse block (J/B)]
NG >> Repair or replace harness between BCM and security indicator lamp.
Diagnosis Procedure 3INFOID:0000000001327918
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-43, "
Check Front Door Key Cylinder Switch".
Diagnosis Procedure 4INFOID:0000000001327919
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 shor t between IPDM E/R and horn relay.
NO >> Check horn circuit. Refer to WW-48
.
Diagnosis Procedure 5INFOID:0000000001327920
VEHICLE SECURITY HEADLAMP ALARM CHECK
Perform operation shown on display indicator lamp
should illuminate.
Connector Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
M3 23 (G/OR) Ground Illuminates 0
Goes off Battery voltage
PIIA6230E
23 (G/OR) – 2 (G/OR) : Co
ntinuity should exist.
PIIA6231E
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-185
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Component Parts and Har ness Connector LocationINFOID:0000000001327922
NOTE:
If customer reports a “NO START” condition, requ est ALL ignition key (without intelligent key system)
or mechanical key (with intelligent key system) to be brought to the dealer to check for a NATS mal-
function.
System DescriptionINFOID:0000000001327923
DESCRIPTION
IVIS (Infinity 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 (regis-
tered 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 performance
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.
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BL-186
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
 In the vehicle with Intelligent Key system, security indicator always flashes with mechanical key removed
condition (key switch OFF) and ignition knob rel eased condition on LOCK position (ignition knob switch
OFF).
 Therefore, IVIS (NATS) warns outsiders that t he vehicle is equipped with the anti-theft system.
 If system detects malfunction, it turns on secu rity 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 s hould 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 addi tional registration of other IVIS (NATS) ignition
key or mechanical key IDs must be carried out usi ng CONSULT-III hardware and CONSULT-III IVIS (NATS)
software. When IVIS (NATS) initialization has been comple ted, the ID of the inserted ignition key or mechan-
ical key or mechanical key IDs can be carried out.
Regarding the procedures of IVIS (NATS) initializati on and ignition key or mechanical key ID registration,
refer to CONSULT-III operat ion 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 swit ch 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.
System CompositionINFOID:0000000001327924
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:
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 (Re- move key.)
Register key OFF Flashing Flashing Flashing
Ignition key not
registered ON Flashing Flashing Flashing
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-187
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The communication between ECM, BCM and/or Intelligent K ey unit uses the CAN communication sys-
tem.
ECM Re-Communicating FunctionINFOID:0000000001327925
Performing following procedure can automatically per form 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 procedur e by CONSULT-III is not necessary)
NOTE:
 When registering new Key IDs or replacing the ECM other than brand new, refer to CONSULT-III
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-III O peration Manual NATS-IVIS/NVIS and initialize control
unit.
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BL-188
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Wiring Diagram - NATS -
INFOID:0000000001327926
MODELS WITH INTELLIGENT KEY SYSTEM
TIWM1677E
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BL-190
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
MODELS WITHOUT INTELLIGENT KEY SYSTEM
TIWM1679E
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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-191
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Terminal and Reference Value for Steeri ng Lock Unit/with Intelligent Key System
INFOID:0000000001327927
Terminal and Reference Value for Intelli gent Key Unit/with Intelligent Key System
INFOID:0000000001327928
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 LOCKPress 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 ON
Ignition 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
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