ignition switch INFINITI FX35 2008 Service Manual

VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-179
< SERVICE INFORMATION >
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OK or NG
OK >> Door switch circuit is OK, and go to “1 – 2 HOOD SWITCH CHECK”.
NG >> GO TO 2.
2.CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and door switches connector.
3. Check continuity between BCM connector B14 terminals 62, 63 and door switch connector B26, B46 terminal 1, and ground.
4. Check continuity between BCM connector M3 terminals 12, 13 and door switch connector B36, B206 terminal 1, and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK DOOR SWITCH
Check continuity between each door switch terminal 1 and ground
part of door switch.
OK or NG
OK >> GO TO 4.
NG >> Replace malfunctioning door switch.
Front door switch
driver side 62 (W)
Ground OPEN 0
CLOSE Battery voltage
Front door switch
passenger side 12 (P/B) OPEN 0
CLOSE Battery voltage
Rear door switch
LH 63 (P) OPEN 0
CLOSE Battery voltage
Rear door switch
RH 13 (P/L) OPEN 0
CLOSE Battery voltage
BCM – Front door switch (driver side)
62 (W) – 1 (W) : Conti nuity should exist.
BCM – Rear door switch LH
63 (P) – 1 (P) : Conti nuity should exist.
BCM – Ground
62 (W) – Ground : Continui ty should not exist.
63 (P) – Ground : Continuity should not exist.
PIIA6225E
BCM – Front door switch (passenger side)
12 (P/B) – 1 (SB) : Cont inuity should exist.
BCM – Rear door switch RH
13 (P/L) – 1 (P) : Cont inuity should exist.
BCM – Ground
12 (P/B) – Ground : Conti nuity should not exist.
13 (P/L) – Ground : Continuity should not exist.
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Terminal Condition Continuity
1 Ground part of
door switch Pushed No
Released Yes
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BL-180
< SERVICE INFORMATION >
VEHICLE SECURITY (THEFT WARNING) SYSTEM
4.CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector M3, B14 terminals 12, 13, 62, 63 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace BCM.
1 – 2 HOOD SWITCH CHECK
1.CHECK HOOD SWITCH
Check hood switch and hood fitting condition.
OK or NG
OK >> GO TO 2.
NG >> Adjust installation of hood switch.
2.CHECK HOOD SWITCH INPUT SIGNAL
With CONSULT-III
Check (“HOOD SW”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Hood switch is OK, and go to “1 – 3 BACK DOOR SWITCH CHECK”.
NG >> GO TO 3.
3.CHECK HOOD SWITCH
1. Turn ignition switch OFF.
2. Disconnect hood switch connector. 12 (P/B) – Ground : Battery voltage
13 (P/L) – Ground : Battery voltage
62 (W) – Ground : Battery voltage
63 (P) – Ground : Battery voltage
PIIA6223E
Monitor item Condition
HOOD SW OPEN : ON
CLOSE : OFF
Connector Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
E9 56 (LG) Ground OPEN 0
CLOSE Battery voltage
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VEHICLE SECURITY (THEFT WARNING) SYSTEMBL-181
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3. Check continuity between hood switch terminals 1 and 2.
OK or NG
OK >> GO TO 4.
NG >> Replace hood switch.
4.CHECK IPDM E/R OUTPUT SIGNAL
Check voltage between IPDM E/R connector and ground.
OK or NG
OK >> Check the following.  Hood switch ground circuit.
 Harness for open or short between hood switch andIPDM E/R.
NG >> Replace IPDM E/R
1 – 3 BACK DOOR SWITCH CHECK
1.CHECK BACK DOOR SWITCH INPUT SIGNAL
With CONSULT-III
Check (“BACK DOOR SW”) in “DATA MONITOR” mode with CONSULT-III.
Without CONSULT-III
Check voltage between BCM connector and ground.
OK or NG
OK >> Back door switch circuit is OK.
NG >> GO TO 2.
2.CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and back door closure motor connector.
Terminals Condition Continuity
1 2 Pressed No
Released Yes
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56 (LG) – Ground : Battery voltage
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Monitor item Condition
BACK DOOR SW OPEN : ON
CLOSE : OFF
Connector Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
B14 58 (L) Ground OPEN 0
CLOSE 9
PIIA6229E
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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.
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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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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
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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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BL-192
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Terminal and Reference Value for BCM
INFOID:0000000001327929
*: With Intelligent Key system
CONSULT-III FunctionINFOID:0000000001327930
CONSULT-III DIAGNOSTIC TEST MODE FUNCTION
NATS SELF-DIAGNOSTIC RESULT ITEM CHART
32 R/B Steering lock unit com-
munication signal Output LOCKPress ignition knob with In-
telligent Key inside vehicle.
Other than the above 5
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minal Wire
color Signal designation Signal
Input/
output Measuring condition
Voltage (V)
(Approx.)
Ignition knob
position Operation or conditions
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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 po-
sition Tester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp Output LOCK Goes OFF
→ illuminates (Ev-
ery 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 ig-
nition 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
CONSULT-III DIAGNOSTIC TEST MODE Description
C/U INITIALIZATION When replacing any of the following three components, C/U initialization is necessary.
[IVIS (NATS) ignition key/ BCM/ ECM]
SELF- DIAGNOSTIC RESULTS Detected items (screen terms) are as shown in the chart.
PIN READ Individual control unit number can be read.
For future information,
refer to operation manual NATS-IVIS/NVIS
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BL-196
< SERVICE INFORMATION >
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
YES >> GO TO 2.
NO >> Refer to BL-195, "
Trouble Diagnosis Symptom Chart".
2.CHECK POWER SUPPLY CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Disconnect BCM connector M4.
3. Check voltage between BCM connector M4 terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following.  50A fusible link [Letter M, located in fuse block (J/B)]
 15A fuse [No.22, located in fuse block (J/B)]
 Harness for open or short between fusible link or fuse
and BCM.
3.CHECK IGNITION SWITCH ON SIGNAL
1. Turn ignition switch ON.
2. Check voltage between BCM connector M3 terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> Check the following.  15A fuse [No.1, located in fuse block (J/B)]
 Harness for open or short between fuse and BCM.
4.CHECK GROUND CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Check continuity between BCM connecto r M4 terminals 49 (B), 52 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between BCM and ground.
5.REPLACE BCM
1. Replace BCM.
2. Perform initialization with CONSULT-III. For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
Does the engine start?
YES >> BCM is malfunctioning.  Replace BCM.
 Perform initialization with CONSULT-III.
 For initialization, refer to “CONSULT -III Operation Manual NATS-IVIS/NVIS”.
NO >> ECM is malfunctioning. 42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6143E
38 (W/L) – Ground : Battery voltage
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49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
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