ECO mode INFINITI M35 2006 Factory Owners Manual

BL-36
POWER DOOR LOCK SYSTEM
Revision: 2006 January2006 M35/M45
Check Door Lock and Unlock Switch NIS001X0
1. CHECK POWER WINDOW SWITCH OUTPUT SIGNAL
With CONSULT-II
Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in DATA MONITOR mode with CONSULT-II.
Without CONSULT-II
1. Remove key from ignition switch, and the door of driver side and passenger side is closed.
2. Check signal between BCM connector and ground with oscilloscope when door lock and unlock switch
(driver side and passenger side) is turned “LOCK” or “UNLOCK”.
3. Make sure signals which are shown in the figure below can be detected during 10 second just after door
lock and unlock switch (driver side and passenger side) is turned “LOCK” or “UNLOCK”.
OK or NG
OK >> Door lock and unlock switch is OK.
NG >> GO TO 2.
Monitor item Condition
CDL LOCK SW LOCK : ON
UNLOCK : OFF
CDL UNLOCK SW LOCK : OFF
UNLOCK : ON
PIIA7068E
Terminal
Signal
(Reference value) (+)
(–)
BCM connector Terminal
M1 22 Ground
PIIB5957EPIIA1297E

BL-50
INTELLIGENT KEY SYSTEM
Revision: 2006 January2006 M35/M45
Key Reminder Function
Key reminder functions have the following 3 functions.
*:If the door closing impact shocks the door lock knob, or contacts against baggage with the door lock knob might activate the door locks
accidentally but unlock operation will be perform at these cases.
CAUTION:
The above function operates when the Intelligent Key is inside the vehicle. However, there may be
times when the Intelligent Key cannot be detected, and this function will not operate when the
Intelligent Key is on the instrument panel, rear parcel shelf, or in the glove box. Also, this system
sometimes does not operate if the Intelligent Key is in the door pocket for the open door.
When the key reminder function is operated when the trunk is open/closed and the buzzers sound,
if the following operations are performed, the key reminder function is cleared and buzzer sounds
are stopped.
–Remote controller door lock button operation of Intelligent Key
–Remote controller door unlock button operation of Intelligent Key
–When the trunk is closed, the Intelligent Key is not inside the vehicle
–When any door is open
Selective Unlock Function
When an LOCK signal is sent from door request switch (driver side or passenger side), all doors will be locked.
When an UNLOCK signal is sent from door request switch (driver side or passenger side) once, driver's door
will be unlocked.
Then, if an UNLOCK signal is sent from door request switch (driver side and passenger side) again within 5
seconds, all other door will be unlocked.
Hazard and Buzzer Reminder Function
During lock, unlock, or trunk opening operation by each request switch, the hazard warning lamps and Intelli-
gent Key warning buzzer will flashes or honk as a reminder.
When doors are locked, unlocked or trunk open by each request switch, Intelligent Key unit honks Intelligent
Key warning buzzer as a reminder and sends hazard request signal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder.
Operating function of hazard and buzzer reminder
How to change hazard and buzzer reminder mode
With CONSULT-II
Key remainder function Operation condition Operation
Driver door close*Right after driver side door is closed under the following conditions
Door lock operation is performed
Driver side door is opened
Driver side door is in unlock stateAll doors unlock
Door is open or closedRight after all doors are closed under the following conditions
Intelligent Key is inside the vehicle
Any door is opened
All doors are locked by door lock and unlock switch or door lock knob
All doors unlock
Honk Intelligent Key warning
buzzer
Trunk is closedRight after trunk is closed under the following conditions
Intelligent Key is inside trunk room
all doors are closed
all doors are locked
Trunk open
Honk Intelligent Key warning
buzzer
Operation Hazard warning lamp flash Intelligent Key warning buzzer honk
Unlock Once Once
Lock Twice Twice
Trunk open — Fourth

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
Hazard and buzzer reminder can be changed using “HAZARD ANSWER BACK”, “ANSWER BACK WITH I-
KEY LOCK” and “ANSWER BACK WITH I-KEY UNLOCK” mode in “WORK SUPPORT”.Refer to BL-83,
"WORK SUPPORT" .
Auto Door Lock Function
When all doors are locked, ignition switch is in OFF position and key switch is OFF (Intelligent Key is not
inserted in key slot), doors are unlocked with door request switch
When Intelligent Key unit does not receive the following signals within 60 seconds, all doors are locked.
Door switch is ON (door is opened)
Door is locked
Ignition switch is ON (ignition switch is pressed)
Key switch is ON (Intelligent Key is inserted in key slot)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-
83, "WORK SUPPORT" .
Room Lamp Operation
When the following conditions are met:
Condition of interior lamp switch is in DOOR position
Door switch OFF (all the doors are closed)
Intelligent Key system turns on interior lamp (for 30 seconds) by receiving UNLOCK signal from door request
switch. For detailed description, refer to LT-270, "
ROOM LAMP TIMER OPERATION" .
List of Operation Related Parts
Parts marked with are the parts related to operation.
Door lock/trunk open function
Intelligent Key
Key slot
Remote keyless entry receiver
Door switch
Trunk room lamp switch
Door request switch (Driver, Passenger)
Trunk opener request switch
Door lock actuator
Trunk lid opener actuator
Inside key antenna
Outside key antenna (Driver, Passenger)
Outside key antenna (Trunk)
Intelligent Key warning buzzer
Intelligent Key unit
CAN communication system
BCM
Hazard warning lamp
Trunk lid opener cancel switch
Push-button ignition switch
Door lock/unlock function by request switch
Trunk open function by the trunk opener
request switch
Hazard and buzzer reminder function for door
lock/unlock operation
Buzzer reminder for trunk open operation
Key reminder function
Selective unlock function by request switch
(Driver side)
Selective unlock function by request switch
(Passenger side)
Auto door lock function

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
Hazard and Horn Reminder Function
When doors are locked or unlocked by Intelligent Key, Intelligent Key unit sends hazard and horn request sig-
nal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder and sends horn chirp signal to IPDM E/R. IPDM E/R
sounds horn as a reminder.
The hazard and horn reminder has a horn chirp mode (C mode) and a non-horn chirp mode (S mode).
Operating function of hazard and horn reminder
Hazard and horn reminder does not operate if any door switch is ON (any door is OPEN).
How to change hazard and horn reminder mode
With CONSULT-II
Hazard and horn reminder can be changed using “HORN WITH KEYLESS LOCK” and “HAZARD ANSWER
BACK” mode in “WORK SUPPORT”.Refer to BL-83, "
WORK SUPPORT" .
Without CONSULT-II
When LOCK and UNLOCK signals are sent from the Intelligent Key for more than 2 seconds at the same time,
the hazard and horn reminder mode is changed and hazard warning lamp flashes and horn sounds as follows:
Auto Door Lock Function
When all doors are locked, ignition switch is OFF (ignition switch is not pressed) and key switch is OFF (Intel-
ligent Key is not inserted in key slot), doors are unlocked with Intelligent Key button. When Intelligent Key unit
does not receive the following signals within 30 seconds, all doors are locked.
Door switch is ON (door is opened)
Door is locked
Ignition switch is ON
Key switch is ON (Intelligent Key is inserted in key slot)
Auto door lock mode can be changed by “AUTO RELOCK TIMER” mode in “WORK SUPPORT”. Refer to BL-
83, "WORK SUPPORT" .
Panic Alarm Function
When ignition switch is OFF (ignition switch is not pressed) and key switch is OFF (Intelligent Key is not
inserted in key slot), Intelligent Key unit receives PANIC ALARM signal from Intelligent Key.
Intelligent Key unit sends alarm request signal to BCM via CAN communication line.
BCM turns on and off headlamp intermittently and sends theft warning horn signal to IPDM E/R. Then, IPDM
E/R turns on and off horn intermittently.
The headlamp flashes and the horn sounds intermittently.
The alarm automatically turns off:
After 25 seconds
When Intelligent Key unit receives any signal from Intelligent Key
When door request switch is pressed (Intelligent Key is within the outside key antenna detection area)
Panic alarm function mode can be changed by “PANIC ALARM DELAY” mode in “WORK SUPPORT”. Refer to
BL-83, "
WORK SUPPORT" .
C mode S mode
Intelligent Key operation Lock Unlock Trunk open Lock Unlock Trunk open
Hazard warning lamp flash Twice Once — Twice — —
Horn sound Once—————
SEL153WA

BL-54
INTELLIGENT KEY SYSTEM
Revision: 2006 January2006 M35/M45
Keyless Power Window Down (Open) Function
All power windows open when the unlock button on Intelligent Key is activated and kept pressed for more than
3 seconds with the ignition switch OFF. The windows keep opening if the unlock button is continuously
pressed.
The power window opening stops when the following operations are performed:
When the unlock button is kept pressed more than 15 seconds.
When the ignition switch is turned ON while the power window opening is operated.
When the unlock button is released.
While retained power operation activate, Keyless power window down (open) Function cannot be operated.
Keyless power window down operation mode can be changed by “P/W DOWN DELAY” mode in “WORK SUP-
PORT”. Refer to BL-83, "
WORK SUPPORT" .
Room Lamp Illumination Operation
When the following conditions are met:
Condition of interior lamp switch is in DOOR position
Door switch OFF (all the doors are closed)
Intelligent Key system turns on interior lamp (for 30 seconds) by receiving UNLOCK signal from Intelligent
Key. For detailed description, refer to LT- 2 7 0 , "
ROOM LAMP TIMER OPERATION" .
List of Operation Related Parts
Parts marked with are the parts related to operation.
ENGINE START FUNCTION
Refer to BL-127, "INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION" .
Remote keyless entry functions
Intelligent Key
Key slot
Door request switch (Driver, Passenger)
Door switch
Trunk room lamp switch
Door lock actuator
Trunk lid opener actuator
Intelligent Key warning buzzer
Intelligent Key unit
CAN communication system
BCM
Combination meter
Hazard warning lamp
Horn
IPDM E/R
Head lamp
Door lock/unlock function by remote control button
Trunk open function by remote control button
Hazard and horn reminder function
Selective unlock function
Keyless power window down (open) function
Auto door lock function
Panic alarm function

BL-56
INTELLIGENT KEY SYSTEM
Revision: 2006 January2006 M35/M45
Operation Condition
Once the following condition from below is established, alert or warning will be executed.
Warning/Information functions Operation procedure
Intelligent Key system malfunctionWhen a malfunction is detected on Intelligent Key unit, “KEY” warning lamp
will illuminates.
OFF position warning For internal
Ignition switch: ACC position.
Door switch (driver side): ON (Door is open).
For externalOFF position warning (For internal) is in active mode, driver side door has
been closed.
NOTE:
OFF position (For external) active only when each of the sequence has
occurred as below: P position warning
ACC warning OFF position warn-
ing (For internal)
OFF position warning (For internal)
P position warning
Shift position: Except P position
Engine is running to stopped (Ignition switch is ON to ACC)
ACC warning
During P position warning is in active mode, shift position has changed P
position.
Ignition switch: Except OFF position.
Take away warningDoor is open to close
Ignition switch: Except OFF position.
Door switch: ON to OFF (Door is open to close).
Intelligent Key can not be detected inside the vehicle.
Door is open
Door switch: ON (Door is open)
Key ID vilification every 5 seconds when registered Intelligent Key can not
be detected inside the vehicle.
Push-ignition switch
operation
Ignition switch: Except OFF position.
Press ignition switch.
Intelligent Key can not be detected inside the vehicle.
Take away through win-
dow
Engine is running.
Key ID vilification every 30 seconds when registered Intelligent Key can not
be detected inside the vehicle.
After vehicle speed verification, the registered Intelligent Key can not be
detect inside the vehicle.
Intelligent Key is
removed from key slot
When Intelligent Key is removed from key slot, Intelligent Key can not be
detected inside the vehicle.
Door lock operation
warningRequest switch operationWhen request switch is pushed (lock operation) under the following condi-
tions.
Door switch: ON (Any door is open).
Intelligent Key is inside vehicle.
Intelligent Key button
operationWhen Intelligent Key bottom is pushed (lock operation) under the following
conditions.
Door switch: ON (Any door is open).
For 3 seconds after Intelligent Key is removed from key slot.
Key warning
Ignition switch is OFF position.
Driver side door switch: ON (Driver side door is open).
Intelligent Key is inserted in key slot.
Intelligent Key insert information
Door switch: ON to OFF (Door is open to close).
Ignition switch: OFF to ON position.
Intelligent Key is out of key slot.
Intelligent Key can not be detected inside the vehicle.

INTELLIGENT KEY SYSTEM
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Revision: 2006 January2006 M35/M45
Check Park Position SwitchNIS001XX
1. CHECK PARK POSITION SWITCH INPUT SIGNAL
With CONSULT-II
Check (“P RANGE SW”) in “DATA MONITOR” mode.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> Park position switch circuit is OK.
NG >> GO TO 2.
2. CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL
Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the condition of harness and connector.
Monitor item Condition
P RANGE SWA/T device P position : ON
Other than above : OFF
PIIB6398E
Te r m i n a l s
A/T device
positionVoltage (V)
(Approx.) (+)
(–)
Intelligent Key
unit connectorTerminal
M32 27 GroundP0
Other than
aboveBattery voltage
PIIB6352E
Terminals
ConditionVoltage (V)
(Approx.) (+)
(–) Intelligent
Key unit
connectorTerminal
M33 58 GroundWake-up state
(Open drive side
door)Battery voltage
Sleep state (After
30 seconds or
more since all
doors are closed
under the condition
that the ignition
switch is in the
LOCK position)0
PIIB6353E

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
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Revision: 2006 January2006 M35/M45
PRECAUTIONS FOR INTELLIGENT KEY SYSTEM
In the Intelligent Key system of model Y50, the transponder (the chip for immobilizer ID verifica-
tion) is integrated into the Intelligent Key. (For the conventional models, it is integrated into the
mechanical key.) Therefore, the mechanical key cannot perform the ID verification, and thus it can-
not start the engine. Instead of it, the immobilizer ID verification can be performed by inserting the
Intelligent Key into the key slot, and then it can start the engine.
When registering the Intelligent Key, 2 registration procedures (immobilizer ID registration and
Intelligent Key ID registration) should be performed. The immobilizer ID registration is the proce-
dure that registers the ID stored into the transponder (integrated into Intelligent Key) to the BCM.
The Intelligent Key ID registration is the procedure that registers the ID to the Intelligent Key unit.
Each registration is a different procedure.
When performing the Intelligent Key ID registration only, the engine cannot be started by inserting
the key into the key slot. When performing the engine immobilizer ID registration only, the engine
cannot be started by the operation when carrying the key. The registrations of both systems
should be performed.
Operation DescriptionNIS001Y9
SYSTEM DIAGRAM
OPERATION WHEN INTELLIGENT KEY IS CARRIED
Description
1. When the push-button switch is pressed, the Intelligent Key unit signals the inside key antenna and sends
the request signal to the Intelligent Key.
2. The Intelligent Key receives the request signal and sends the Intelligent Key ID signal to the Intelligent
Key unit via the remote keyless entry receiver.
3. The Intelligent Key receives the Intelligent Key ID signal and verifies it with the registered ID.
4. If the ID is successfully verified, the Intelligent Key unit sends the steering unlock signal to the steering
lock unit. Then, it sends each power supply request signal to PDU (Power Distribution Unit) after unlock-
ing the steering lock.
5. If the Intelligent Key unit judges that the engine start condition is satisfied, it sends the starter request sig-
nal via CAN communication to IPDM E/R and turns the starter motor relay ON.
6. The steering lock unit unlocks the steering lock when receiving the signal. PDU starts the power supply
distribution according to the push-button ignition switch operation when receiving the signal. If it enters the
engine start permission mode, the power supply is supplied from PDU to the starter motor relay and the
cranking is started.
CAUTION:
If a malfunction is detected in the Intelligent Key system, the “KEY” warning lamp in the combina-
tion meter illuminates for 15 seconds. At that time, the engine cannot be started.
7. When Intelligent Key unit received feedback signal from ECM acknowledging the engine has been initi-
ated, the Intelligent Key unit sends a stop signal to IPDM E/R and stops the cranking by turning OFF the
PIIB6272E

BL-152
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
6. Select diagnosis mode. “WORK SUPPORT”, “SELF-DIAG
RESULTS”, “CAN DIAG SUPPORT MNTR”, “DATA MONITOR”,
“ACTIVE TEST” and “ECU PART NUMBER” are available.
CONSULT-II Application ItemsNIS001YM
SELF-DIAGNOSTIC RESULTS
How to Read SELF-DIAGNOSTIC RESULTS
BCIA0031E
PIIB6280E
Suspect Systems
[DTC]Diagnostic item is detected when... Repair work Reference page
CAN COMM 1
[U1000]Malfunction is detected in CAN communicationPerform CAN communi-
cation system inspectionBL-181
CAN COMM 2
[U1010]Malfunction is detected in CAN communication caused
by Intelligent Key unit internal malfunctionReplace Intelligent Key
unit.BL-181
STRG COMM 1
[B2013]Communication malfunction with steering lock unit is
detectedCheck steering lock unitBL-157
STEERING LOCK UNIT
[B2551]Even if the communication with steering lock unit is
normally performed, the steering lock is malfunctioningReplace steering lock
unitBL-159
INTELLIGENT KEY
[B2552]Internal malfunction is detected in Intelligent Key unitReplace Intelligent Key
unit.BL-163
IGN POWER CIRCUIT
[B2553]It continues for 2 seconds or more that ON power sup-
ply input to Intelligent Key unit is excessively low when
the power supply position is in ON positionCheck Intelligent Key
unit ON power supply
inputBL-163
ACC POWER CIRCUIT
[B2554]It continues for 2 seconds or more that ACC power
supply input to Intelligent Key unit is excessively low
when the power supply position is in ACC or ON posi-
tionCheck Intelligent Key
unit ACC power supply
inputBL-164
STOP LAMP CIRCUIT
[B2555]5V or less is detected at both the stop lamp switch sig-
nal input circuit that is input to Intelligent Key unit and
the monitor input before stop lamp switchCheck stop lamp switchBL-167

BL-168
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2006 January2006 M35/M45
DIAGNOSTIC PROCEDURE
1. CHECK STOP LAMP SIGNAL
With CONSULT-II
Check (“STOP LAMP SW”) in DATA MONITOR mode with CONSULT-II.
Without CONSULT-II
Check voltage between Intelligent Key unit connector and ground.
OK or NG
OK >> XXX
NG >> Check the following.
10A fuse [No.20, located in the fuse block (J/B)]
Harness for open or short between fuse block and Intelligent Key unit.
DTC B2556 ENG START SWNIS001YT
DIAGNOSIS DESCRIPTION
When the push-button ignition switch input, which inputs to the Intelligent Key unit, continues for 100 seconds
or more, B2556 push-button ignition switch judges that it is the malfunction and displays the DTC (Diagnostic
Trouble Code)
TERMINALS AND REFERENCE VALUE FOR INTELLIGENT KEY UNIT
SELF-DIAGNOSTIC LOGIC
When depressing the break pedal
STOP LAMP SW : ON
PIIB6238E
Terminals
Voltage (V)
(Approx.) (+)
(–)
Intelligent Key unit
connectorTerminal
M32 11 Ground Battery voltage
PIIB6239E
Te r m i -
nal
No.Wire
colorItemCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
39 BR/WPush-button ignition
switch—Push-button ignition switch is pressed 0
Push-button ignition switch is released Battery voltage
DTCSelf-diagnosis
nameDTC detecting condition Possible causes
B2556 ENG START SWInput signal from push-button ignition switch to Intelli-
gent Key unit continues for 100 seconds or more
Harness and connector
(Open in the circuit between the
units)
Push-button ignition switch