2007 INFINITI M35 alarm

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-221
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 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-50, "CAN System Specification Chart"

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-229
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 M35/M45
Terminals and Reference Value of BCMNIS001ZZ
Terminals and Reference Value of IPDM E/RNIS00200
Te r m i -
nal Wire
colorItemSignal
Input/
OutputConditionVoltage [V]
(Approx.)
11 V Power supply (ACC) InputIgnition switch (ACC or ON
position)Battery voltage
12 PFront door switch
passenger side signalInputON (Open) → OFF
(Closed)0 → Battery voltage
13 O/L Rear door switch RH signal InputON (Open) → OFF
(Closed)0 → Battery voltage
22 G Power window serial linkInput/
OutputIgnition switch ON or power
window timer operating
23 W/V Security indicator lamp Output Goes off → Illuminates Battery voltage → 0
37 LG Key switch signal InputKey inserted in key slot →
key removed from key slotBattery voltage → 0
39 L CAN-HInput/
Output——
40 P CAN-LInput/
Output——
42 P Power source (fuse) Input — Battery voltage
52 B Ground — — 0
55 W Battery power supply (fusible link) Input — Battery voltage
56 W Trunk lid key cylinder switch Input Neutral → Unlock Battery voltage → 0
57 SB Trunk room lamp switch signal InputON (Open) → OFF
(Closed)0 → Battery voltage
62 VFront door switch
driver side signalInputON (Open) → OFF
(Closed)0 → Battery voltage
63 R/G Rear door switch LH signal InputON (Open) → OFF
(Closed)0 → Battery voltage
PIIA2344J
Terminal Wire color ItemSignal
Input/OutputConditionVoltage [V]
(Approx.)
38 B Ground (power) — — 0
48 G/B Horn relay control signal OutputPanic alarm is operating 0
Other than above Battery voltage
49 L CAN-H Input/Output — —
50 P CAN-L Input/Output — —
51 B Ground (signal) — — 0
60 LG/B Hood switch signal Input ON (Open) → OFF (closed) 0 → Battery voltage

BL-230
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2007 April2007 M35/M45
CONSULT-II Function (BCM)NIS00201
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CAUTION:
CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunction might be detected in
self-diagnosis depending on control units with carry out CAN communication.
BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
CONSULT-II APPLICATION ITEM
Work Support
Data Monitor
BCM diagnosis
positionInspection items and diagnosis mode Description
THEFT ALMDATA MONITOR Displays the input data to BCM in real time basis.
ACTIVE TEST Gives a drive signal to a load to check the operation.
WORK SUPPORT Changes setting of each function.
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.
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.

BL-232
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2007 April2007 M35/M45
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-241, "Diagnostic Pro-
cedure 2" .

Alarm (horn, headlamp and hazard lamp) do not operate. Refer to BL-242, "Diagnostic Proce-
dure 3" .
4. CHECK ALARM CANCEL OPERATION
Unlock any door or open trunk lid using Intelligent Key or mechanical key.
Alarm (horn, headlamp and hazard lamp) should stop.
OK >> INSPECTION END.
NG >> Perform diagnosis and repair. Refer to BL-242, "
Diagnostic Procedure 4" .

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-233
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 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 ····Door switch Diagnostic Procedure 1 (Check door, hood and trunk switch) BL-234
Lock / unlock switch Diagnostic Procedure 6 (Check door lock / unlock switch)BL-243
Door outside key Diagnostic Procedure 3 (Check door key cylinder switch)BL-242
Intelligent Key Check Intelligent Key.BL-124
— If the above systems are “OK”, replace BCM.BCS-15
Security indicator does not turn “ON”.Diagnostic Procedure 2 (Check security indicator lamp)BL-241If the above systems are “OK”, replace BCM.BCS-15
2* Vehicle security
system does not
alarm when ····Any door is opened.Diagnostic Procedure 1 (Check door, hood and trunk switch)BL-234If the above systems are “OK”, replace BCM.BCS-15
3Vehicle security
alarm does not
activate.Horn alarmDiagnostic Procedure 4 (Check vehicle security horn alarm)BL-242
If the above systems are “OK”, replace BCM.BCS-15
Head lamp alarmDiagnostic Procedure 5 (Check head lamp alarm)BL-243If the above systems are “OK”, replace BCM.BCS-15
Hazard lampDiagnostic Procedure 7 (Check hazard lamp alarm)BL-243If the above systems are “OK”, replace BCM.BCS-15
4Vehicle security
system cannot be
canceled by ····Door outside keyDiagnostic Procedure 3 (Check door key cylinder switch)BL-242
If the above systems are “OK”, replace power window main
switch.EI-34
Intelligent KeyCheck remote keyless entry function.BL-43If the above systems are “OK”, replace BCM.BCS-15

BL-242
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: 2007 April2007 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-41, "
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-13, "
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-54, "
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

VEHICLE SECURITY (THEFT WARNING) SYSTEM
BL-243
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 M35/M45
Diagnostic Procedure 5NIS00209
VEHICLE SECURITY HEADLAMP ALARM CHECK
1. CHECK HEADLAMP OPERATION
Check if headlamp operate by lighting switch.
Does headlamp come on when turning switch
“ON”?
YES >> Headlamp circuit is OK.
NO >> Check headlamp system. Refer to LT- 4 2 , "
HEADLAMP (FOR USA) - XENON TYPE -" , LT- 8 ,
"HEADLAMP (FOR USA) - CONVENTIONAL TYPE -" or LT- 7 8 , "HEADLAMP (FOR CANADA) -
DAYTIME LIGHT SYSTEM -" .
Diagnostic Procedure 6NIS0020A
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-35, "
Check Door Lock and Unlock Switch"
Diagnostic Procedure 7NIS0020B
VEHCLE SECURITY HAZARD LAMP ALARM CHECK
1. CHECK HAZARD WARNING LAMP
Does hazard warning lamp flash with hazard switch?
YES or NO
YES >> Hazard warning lamp circuit is OK.
NO >> Check hazard circuit. Refer to LT- 2 1 2 , "
TURN SIGNAL AND HAZARD WARNING LAMPS" .

TROUBLE DIAGNOSIS
LAN-53
[CAN]
C
D
E
F
G
H
I
J
L
MA
B
LAN
Revision: 2007 April2007 M35/M45
Ignition switch ON signal T R R
Ignition switch signal T R R
Key ID signal T R
Key switch signal T R
Low beam request signal T R
Oil pressure switch signalTR
RT
Position light request signal T R R
Rear window defogger switch signal T R
Sleep wake up signal T R R R R
Theft warning horn request signal T R
Trunk switch signal T R R
Turn indicator signal T R R
A/T CHECK indicator lamp signal T R
A/T position indicator signal R T R R R
A/T self-diagnosis signal R T
Current gear position signal T R R
Manual mode indicator signal T R R
N range signal T R R
Output shaft revolution signal R R T R
P range signal T R R R R
R range signal T R R R
Turbine revolution signal R T R
A/C switch/indicator signalTR
RT
System setting signalTR R
RT T
Door lock/unlock trunk open request signal R T
Hazard and horn request signal R T
Key warning signal T R
Meter display signalTR
RT
Panic alarm request signal R T
Power window open request signal R T
A/C evaporator temperature signal R T
Distance to empty signal R T
Fuel level low warning signal R T
Fuel level sensor signal R T
Manual mode shift down signal R T
Manual mode shift up signal R T
Manual mode signal R T
Not manual mode signal R T
Parking brake switch signal R TSignals
ECM
AFS
*1
BCM
LANE
*2
TCM
AV
I-KEY
M&A
STRG
TPMS
RAS
*3
PSB
ADP
ABS
ICC
*4
IPDM-E