key INFINITI M35 2006 Factory Service Manual

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-221
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2006 January2006 M35/M45
1. Fuse block (J / B) fuse layout 2. IPDM E / R fuse layout 3. Fuse and fusible link box
4. BCM M1, M2 (View with instrument
lower panel RH removed)5. IPDM E / R E8, E9
(Engine room)6. Security indicator M69
(Multifunction switch)
7. Key slot M14 8. Hood switch E44
(Hood lock assembly)9. Intelligent key unit M32 (View with
dash side finisher LH removed)
10. Remote keyless entry receiver M89
(View with instrument lower panel RH
removed)11. Power window main switch
D10, D11 (Driver side)12. Power window sub switch
D46 (Passenger side)
13. Front door lock assembly LH D14
(Key cylinder switch)14. Front door switch B11
(Driver side)15. Rear door switch LH B53
16. trunk lid lock assembly T106
(Trunk room lamp switch)17. Trunk lid key cylinder switch T104 18. Horn (low) E56, E57 (View with front
fender protector LH removed)
19. Horn (high) E64, E65 (View with front
grille removed)
PIIB5893E

BL-222
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 January2006 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
BL-223
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2006 January2006 M35/M45
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times
through 50A fusible link (letter F , located in the fuse and fusible link box)
to BCM terminal 55,
through 10A fuse [No. 21, located in the fuse block (J/B)]
to BCM terminal 42,
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,
through 15A fuse [No. 37, located in the fuse block (J/B)]
to multi-function switch (security indicator) terminal 1.
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.
Ground is supplied
to BCM terminal 52
through body grounds M16 and M70.
INITIAL CONDITION TO ACTIVATE THE SYSTEM
The operation of the vehicle security system is controlled by the doors, hood and trunk.
To activate the vehicle security system, BCM must receive signals indicating the doors, hood and trunk are
closed and the doors are locked by key fob.
When a door is open, 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 an unlock signal from terminal 14 of power window main switch with power window serial link.
When front door RH is unlocked by power window sub-switch (passenger side) (door lock and unlock switch),
BCM terminal 22 receives an unlock signal from terminal 16 of power window sub-switch (passenger side)
with power window serial link.
When front door key cylinder switch is in LOCK position, ground is supplied
to power window main switch terminal 4
through front door key cylinder switch terminals 6 and 4
through body grounds M16 and M70.
When the hood is open, IPDM E/R receives a ground signal
to IPDM E/R terminal 60
through hood switch terminal 2
through hood switch terminal 1
through body grounds E22, and E43.
The IPDM E/R then sends a signal to BCM via CAN communication line.
When the trunk is open, ground is supplied
to BCM terminal 57
through trunk room lamp switch terminal 1
through trunk room lamp switch terminal 2
through body grounds B5, B40 and B131.

BL-224
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 January2006 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-34, "CAN COMMUNICATION" .

BL-232
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 January2006 M35/M45
Terminals and Reference Value of BCMNIS001ZZ
Terminals and Reference Value of IPDM E/RNIS00200
Terminal Wire color Item ConditionVoltage [V]
(Approx.)
11 V Power supply (ACC) Ignition switch (ACC or ON position) Battery voltage
12 PFront door switch
passenger side signalON (Open)
OFF (Closed) 0 Battery voltage
13 O/L Rear door switch RH signal ON (Open)
OFF (Closed) 0 Battery voltage
22 G Power window serial linkIgnition switch ON or power window
timer operating
23 W/V Security indicator lamp Goes off
Illuminates Battery voltage 0
37 LG Key switch signalKey inserted in key slot
key
removed from key slotBattery voltage 0
39 L CAN-H — —
40 P CAN-L — —
42 P Power source (fuse) — Battery voltage
52 B Ground — 0
55 W Battery power supply (fusible link) — Battery voltage
56 W Trunk lid key cylinder switch Neutral
Unlock Battery voltage 0
57 SB Trunk room lamp switch signal ON (Open)
OFF (Closed) 0 Battery voltage
62 VFront door switch
driver side signalON (Open)
OFF (Closed) 0 Battery voltage
63 R/G Rear door switch LH signal ON (Open)
OFF (Closed) 0 Battery voltage
PIIA2344J
Terminal Wire color Item ConditionVoltage [V]
(Approx.)
38 B Ground (power) — 0
48 G/B Horn relay control signalPanic alarm is operating 0
Other than above Battery voltage
49 L CAN-H — —
50 P CAN-L — —
51 B Ground (signal) — 0
60 LG/B Hood switch signal ON (Open)
OFF (closed) 0 Battery voltage

BL-234
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 January2006 M35/M45
6. Touch “THEFT ALM”.
7. Select diagnosis mode.
“WORK SUPPORT”, “DATA MONITOR” and “ACTIVE TEST”
CONSULT-II APPLICATION ITEM
Work Support
Data Monitor
PIIA9936E
BCIA0031E
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.
I-KEY DR UNLK Indicates [ON/OFF] condition of unlock signal from driver side door request switch.
I-KEY AS UNLK Indicates [ON/OFF] condition of unlock signal from passenger side door request switch.
I-KEY LOCK Indicates [ON/OFF] condition of lock signal from Intelligent Key.
I-KEY UNLOCK Indicates [ON/OFF] condition of unlock signal from Intelligent Key.
I-KEY TRNK/HAT Indicates [ON/OFF] condition of trunk opener signal from Intelligent Key.
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 Indicates [ON/OFF] condition of trunk room lamp switch.
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 This is displayed even when it is not equipped.
KEY CYL LK-SW Indicates [ON/OFF] condition of lock signal from front door key cylinder switch.
KEY CYL UN-SW Indicates [ON/OFF] condition of unlock signal from front door key cylinder switch.

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-235
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2006 January2006 M35/M45
Active Test
Trouble Diagnosis Work FlowNIS00202
1. CHECK IN
Listen to customer complaint.
>> GO TO 2.
2. CHECK FUNCTION
Do “Power door lock system” and “Intelligent Key system” work properly?
YES >> GO TO 3.
NO >> Preform diagnosis and repair. Refer to .
3. PERFORM DIAGNOSTIC PROCEDURE
Perform diagnostic procedure according to the symptom chart. Refer to BL-237, "
Trouble Diagnosis Symptom
Chart" .
>> GO TO 4.
4. FINAL CHECK
Confirm that the malfunction is completely fixed by operating the system.
OK >> INSPECTION END
NG >> GO TO 3.
Preliminary CheckNIS00203
1. INSPECTION START
Turn ignition switch "OFF" and pull out Intelligent Key from key slot.
NOTE:
Before starting operation check, open front windows.
>> GO TO 2.
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. Monitored Item Description
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.
VEHICLE SECURITY 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.
FLASHERThis test is able to check vehicle security hazard lamp operation. The hazard lamps will be acti-
vated after “ON” on CONSULT-II screen is touched.

BL-236
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 January2006 M35/M45
2. CHECK SECURITY INDICATOR LAMP
1. Lock doors using Intelligent Key or mechanical key.
2. Make sure security indicator lamp illuminate for 30 seconds.
Security indicator lamp should illuminate.
OK >> GO TO 3.
NG >> Perform diagnosis and repair. Refer to BL-238, "
Diagnostic Procedure 1" .
3. CHECK ALARM FUNCTION
1. After 30 seconds, security indicator lamp will start blink.
2. Open any door or hood before unlocking with Intelligent Key or mechanical key, or open trunk lid without
Intelligent Key or mechanical key.
Do alarm function properly.
OK >> GO TO 4.
NG >> Check the following.
The vehicle security system does not phase in alarm mode. Refer to BL-245, "Diagnostic Pro-
cedure 2" .
Alarm (horn, headlamp and hazard lamp) do not operate. Refer to BL-246, "Diagnostic Proce-
dure 3" .
4. CHECK ALARM CANCEL OPERATION
Unlock any door or open trunk lid useing Intelligent Key or mechanical key.
Alarm (horn, headlamp and hazard lamp) should stop.
OK >> INSPECTION END.
NG >> Perform diagnosis and repair. Refer to BL-246, "
Diagnostic Procedure 4" .

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-237
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2006 January2006 M35/M45
Trouble Diagnosis Symptom ChartNIS00204
*: Make sure the system is in the armed phase.Procedure
Diagnostic procedure Refer to page
Symptom
1Vehicle security
system cannot be
set by ꞏꞏꞏꞏDoor switch Diagnostic Procedure 1 (Check door, hood and trunk switch) BL-238
Lock / unlock switch Diagnostic Procedure 6 (Check door lock / unlock switch)BL-247
Door outside key Diagnostic Procedure 3 (Check door key cylinder switch)BL-246
Intelligent Key Check Intelligent Key.BL-126
— If the above systems are “OK”, replace BCM.BCS-17
Security indicator does not turn “ON”.Diagnostic Procedure 2 (Check security indicator lamp)BL-245If the above systems are “OK”, replace BCM.BCS-17
2* Vehicle security
system does not
alarm when ꞏꞏꞏꞏAny door is opened.Diagnostic Procedure 1 (Check door, hood and trunk switch)BL-238If the above systems are “OK”, replace BCM.BCS-17
3Vehicle security
alarm does not
activate.Horn alarmDiagnostic Procedure 4 (Check vehicle security horn alarm)BL-246
If the above systems are “OK”, replace BCM.BCS-17
Head lamp alarmDiagnostic Procedure 5 (Check head lamp alarm)BL-247If the above systems are “OK”, replace BCM.BCS-17
Hazard lampDiagnostic Procedure 7 (Check hazard lamp alarm)BL-247If the above systems are “OK”, replace BCM.BCS-17
4Vehicle security
system cannot be
canceled by ꞏꞏꞏꞏDoor outside keyDiagnostic Procedure 3 (Check door key cylinder switch)BL-246
If the above systems are “OK”, replace power window main
switch.EI-34
Intelligent KeyCheck remote keyless entry function.BL-44If the above systems are “OK”, replace BCM.BCS-17

BL-246
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2006 January2006 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-42, "
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-15, "
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-53, "
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
AB
Continuity
IPDM E/R
connectorTe r m i n a lHorn relay
connectorTerminal
E9 48 E20 1 Yes
PIIB6220E