turn signal INFINITI FX35 2004 Service Manual

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VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2004 November 2004 FX35/FX45
System DescriptionAIS004OT
DESCRIPTION
Operation Flow
Setting the Vehicle Security System
Initial condition

Ignition switch is in OFF position.
Disarmed phase

When hood, doors or back door 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, key fob or Intelligent Key after hood, back
door and all doors are closed.
2. Hood, back door 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.
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VEHICLE SECURITY (THEFT WARNING) SYSTEM
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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, key fob 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, key fob 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, back door or any door is opened during armed phase.
2. Disconnecting and connecting the battery connector before canceling armed phase.
POWER SUPPLY
Power is supplied at all times

through 10A fuse [No.19, located in the fuse block (J/B)]

to security indicator lamp terminal 1.

through 50A fusible link (letter M , located in the fuse and fusible link box)

to BCM terminal 55.

through 15A fuse [No.22, located in the fuse block (J/B)]

to BCM terminal 42.

through 15A fuse [No.34, located in the fuse and fusible link box]

to horn relay terminal 2.

through 10A fuse [No.71, located in the IPDM E/R]

to IPDM E/R internal CPU.

through 15A fuse [No.78, located in the IPDM E/R]

to IPDM E/R internal CPU.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to BCM terminal 11.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors, hood and back door.
To activate the vehicle security system, BCM must receive signals indicating the doors, hood and back door
are closed and the doors are locked by key fob, Intelligent Key or ignition key.
When a door is open, BCM terminal 12 (passenger side door), 13 (rear RH door), 62 (driver side door), 63
(rear LH door) receives a ground signal from each door switch.
When front door LH is unlocked by power window main switch (door lock and unlock switch),
BCM terminal 22 receives a signal from terminal 14 of power window main switch with power window serial
link.
When front door RH is unlocked by front power window switch (passenger side) (door lock and unlock switch),
BCM terminal 22 receives a signal from terminal 16 of front power window switch (passenger side) with power
window serial link.
When the hood is open, IPDM E/R receives a ground signal

to IPDM E/R terminal 56

through hood switch terminal 2

through hood switch terminal 1

through body grounds E21, E50 and E51.
The IPDM E/R then sends a signal to the BCM through the CAN SYSTEM.
When the back door is open,

to BCM terminal 58

through back door closure motor terminal 7

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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.

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VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2004 November 2004 FX35/FX45
7. Select diagnosis mode.
“DATA MONITOR”, “ACTIVE TEST” AND “WORK SUPPORT”
CONSULT-II APPLICATION ITEM
Work Support
Data Monitor
Active Test
SEL274W
Test Item Description
SECURITY ALARM SET This mode is able to confirm and change security alarm ON-OFF setting.
THEFT ALM TRGThe switch which triggered vehicle security alarm is recorded. This mode is able to confirm and
erase the record of vehicle security alarm. The trigger data can be erased by touching “CLEAR”
on CONSULT-II screen.
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 INDThis 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 HORNThis 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.

VEHICLE SECURITY (THEFT WARNING) SYSTEM
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3. CHECK HOOD SWITCH
1. Turn ignition switch OFF.
2. Disconnect hood switch connector.
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 and
IPDM E/R.
NG >> Replace IPDM E/R
Terminals Condition Continuity
1 2Pressed No
Released Yes
PIIA2498E
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
E9 56 (LG) GroundOPEN 0
CLOSE Battery voltage
PIIA6228E

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VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2004 November 2004 FX35/FX45
1 – 3 BACK DOOR SWITCH CHECK
1. CHECK BACK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check (“BACK DOOR SW”) in “DATA MONITOR” mode with CONSULT-II.
Without CONSULT-II
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.
3. Check continuity between BCM connector B14 terminal 58 and
back door closure motor connector D109 terminal 7.
4. Check continuity between BCM connector B14 terminal 58 and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
Monitor item Condition
BACK DOOR SWOPEN : ON
CLOSE : OFF
PIIA2488E
ConnectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
B14 58 (L) GroundOPEN 0
CLOSE 9
PIIA6229E
58 (L) – 7 (L) : Continuity should exist.
58 (L) – Ground : Continuity should not exist.
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VEHICLE SECURITY (THEFT WARNING) SYSTEM
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Diagnostic Procedure 3AIS004P6
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-69, "
Front Door Key Cylinder Switch Check" .
Diagnostic Procedure 4AIS004P7
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-56, "
HORN" .
Diagnostic Procedure 5AIS004P8
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- 7 , "
HEADLAMP - XENON TYPE -" or LT- 3 8 , "DAYTIME
LIGHT SYSTEM" .
Diagnostic Procedure 6AIS004P9
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-48, "
Check Door Lock and Unlock Switch" .

BL-212
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for Steering Lock Unit/with Intelligent Key Sys-
tem
AIS004PF
Terminals and Reference Value for Intelligent Key Unit/with Intelligent Key Sys-
tem
AIS004PG
Te r -
minal
No.Wire
colorSignal DesignationMeasuring condition
Voltage (V)
Approx. Ignition knob
positionOperation or conditions
1 L/R Battery power supply LOCK — Battery voltage
2R/WSteering lock unit
power supplyLOCK — 5
3R/BSteering lock unit com-
munication signalLOCKPress ignition knob with Intelligent Key
inside vehicle.
Other than the above 5
4Y/BSteering lock unit
ground—— 0
SIIA1911J
Te r -
minal
No.Wire
colorSignal designationMeasuring condition
Voltage (V)
Approx. Ignition knob
positionOperation or conditions
1R/WSteering lock unit
power supplyLOCK — 5
2 L CAN communication H — — —
3 R CAN communication L — — —
6 G/R Ignition power supply ON — Battery voltage
7 B/W Key switch LOCKInsert mechanical key into ignition key
cylinder.Battery voltage
Remove mechanical key from ignition
key cylinder.0
11 L/R Battery power supply — — Battery voltage
12 B GND — — 0
27 L/W Ignition knob switch —Press ignition knob. Battery voltage
Return ignition knob to LOCK position. 0
31 Y/BSteering lock unit
ground—— 0
32 R/BSteering lock unit com-
munication signalLOCKPress ignition knob with Intelligent Key
inside vehicle.
Other than the above 5
SIIA1911J

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Terminals and Reference Value for BCMAIS004PH
*: With Intelligent Key systemTe r -
minal
No.Wire
colorSignal designationMeasuring condition
Voltage (V)
Approx. Ignition knob
positionOperation or conditions
21 G/B NATS antenna apm. — Ignition knob OFF → ON positionTester pointer should move just
after turning ignition knob “ON”
23 G/OR Security indicator lamp LOCKGoes OFF → illuminates (Every 2.4
seconds)Battery voltage → 0
25 BR NATS antenna amp. — Ignition knob OFF → ON positionTester pointer should move just
after turning ignition knob “ON”
37* B/W Key switch —Insert mechanical key into ignition key
cylinderBattery voltage
Remove mechanical key from ignition
key cylinder0
38 W/L Ignition power supply ON Ignition knob ON or START position Battery voltage
39 L CAN-H — — —
40 R CAN-L — — —
42 L/R Battery power supply — — Battery voltage
49 B GND — — 0
52 B GND — — 0
55 G Battery power supply — — Battery voltage

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IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2004 November 2004 FX35/FX45
Diagnostic Procedure 2AIS004PN
Self-diagnostic results:
“CHAIN OF ECM-IMMU” is display on CONSULT-II screen
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, then perform the trouble diagno-
sis of malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-14, "
CAN Com-
munication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm that SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-
IMMU” is displayed on the screen?
Does CONSULT-II screen display as shown in figure?
YES >> GO TO 2.
NO >> GO TO BL-218, "
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 42 (L/R),
55 (G) 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 38 (W/L)
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.
PIIA1260E
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6143E
38 (W/L) – Ground : Battery voltage
PIIA6144E