battery remove INFINITI M35 2007 Factory Owner's Manual

BL-6
PRECAUTIONS
Revision: 2007 April2007 M35/M45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NIS002B4
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Procedures without Cowl Top CoverNIS001WB
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNIS001WC
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.

Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
PIIB3706J

BL-56
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Warning Method
The following table shows the alarm or warning methods with chime.
Meter display, “KEY” indicator or key slot illumination when the warning conditions are met.
Engine start informationIgnition switch is ON
position

Ignition switch: ON position.

Shift position: P position

Engine is stopped
Ignition switch is except
ON position

Ignition switch: Except ON position.

Shift position: P position

Intelligent Key is inserted in key slot.

Intelligent Key can be detected inside the vehicle.
Steering lock information When steering lock can not be released after ignition switch is turned ON.
Intelligent Key low battery warningWhen Intelligent Key is low battery, Intelligent Key unit is detected after igni-
tion switch is turned ON.
Key ID warningWhen registered Intelligent Key can not be detected inside the vehicle after
ignition switch is turned ON. Warning/Information functions Operation procedure
Warning/Information functions“KEY” warn-
ing lampCombination meter displayKey slot
illuminationWarning chime
Combination
meter buzzerIntelligent
Key warning
buzzer
Intelligent Key system malfunction Illuminate — — — —
OFF position warn-
ing For internal — — — Activate —
For external — — — — Activate
P position warning — — Activate —
ACC warning — — Activate —
Take away warningDoor is open to
close— Flash Activate Activate
Door is open — Flash — —
Push-ignition
switch operation— Flash Activate —
Take away
through window— Flash Activate —
Intelligent Key is
removed from
key slot—Flash——
Door lock opera-
tion warningRequest switch
operation— — — — Activate
Intelligent Key
operation— — — — Activate
PIIB4765J
PIIB4766J
PIIB6452E

BL-58
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
List of Operation Related Parts
Parts marked with × are the parts related to operation.
Warning function
Intelligent Key
Key slot
Ignition switch
Door switch
Door request switch
Inside key antenna
Outside key antenna
Intelligent Key warning buzzer
Combination meter warning buzzer
Intelligent Key unit
CAN communication system
BCM
Combination meter display
Key slot illumination
Park position switch
“KEY” warning lamp
Intelligent Key system malfunction×× ×
OFF position warningFor internal×××××
For external×××××
P position warning××××××
ACC warning××××××
Take away warningDoor is open or close× × × ×××××××
Door is open× × × ×××××
Push-ignition switch
operation× × × ××× ××
Take away through win-
dow×××××××
Intelligent Key is
removed from key slot×× × ×× ××
Door lock operation warning×× ××××× ×××
Key warning×× × ××××××
Intelligent Key insert information×××× × ×××××
Engine start informationIgnition switch is ON
position××× × ×× × ×
Ignition switch is except
ON position××× × ×× ×
Steering lock information××××
Intelligent Key low battery warning×××××
Key ID warning××× × ×× ×

INTELLIGENT KEY SYSTEM
BL-73
C
D
E
F
G
H
J
K
L
MA
B
BL
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for Intelligent Key UnitNIS001XD
Te r m i -
nalWire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
Approx. Ignition
Switch
PositionOperation or Conditions
1 SB Power source (Fuse) Input — — Battery voltage
2GRDoor request switch
(driver side)Input —Press door request switch (driver
side).0
Other than above 5
4B/YRemote keyless entry
receiver RSSI signalInput/
OutputLOCKWhen Intelligent Key is in vehicle,
press push-button ignition switch0
Other than above
5B/WRemote keyless entry
receiver signalInput/
OutputLOCKWaiting state
Any operation using Intelligent
Key
6BRemote keyless entry
receiver ground—— — 0
7B/RRemote keyless entry
receiver power supplyOutput LOCK —
11 L GOutside key antenna
(+) signal
(passenger side)
Output LOCKPress door request switch (pas-
senger side).
12 GOutside key antenna
(-) signal
(passenger side)
13 LG/BKey slot illumination
signalOutput LOCKInsert Intelligent Key into key slot
and driver side door is open.Illuminate: Battery voltage
Does not illuminate: 0
Remove Intelligent Key from key
slot.0
PIIB5657J
OCC3879D
OCC3880D
OCC3881D
SIIA1910J

BL-74
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
17 O/BOutside key antenna
(+) signal
(Trunk room)
Output LOCKPress trunk opener request
switch.
18 LOutside key antenna
(-) signal
(Trunk room)
19 BR/Y Key switch signal Input LOCKInsert Intelligent Key into key slot. 0
Remove Intelligent Key from key
slot.Battery voltage
20 B Ground — ON — 0
22 ODoor request switch
(passenger side)Input —Press door request switch
(passenger side).0
Other than above 5
23 BTrunk lid opener can-
cel switchInput —Trunk lid opener cancel switch is
ON0
Trunk lid opener cancel switch is
OFF (cancel)5
24 O/LOutside key antenna
(+) signal (driver side)
Output LOCKPress door request switch (driver
side).
25 YOutside key antenna
(-) signal (driver side)
26 BR/WUnlock sensor
(driver side)Input —Door (driver side) is locked. Battery voltage
Door (driver side) is unlocked. 0
27 V P range switch Input —Selector lever is in “P” position. 0
Other than above Battery voltage
30 L/W Ignition switch (ACC) Input ACC — Battery voltage
31 GR Ignition switch (ON) Input ON — Battery voltage
35 LG Vehicle speed signal Input ONAt speedometer operation (vehi-
cle speed approx. 40 km/h)
37 P CAN-LInput/
Output—— —
38 L CAN-HInput/
Output—— —
39 BR/WPush-button ignition
switch signalInput —Press push-button ignition switch 0
Other than above Battery voltage
40 B Ground — ON — 0
41 Y Power source (Fuse) Input — — Battery voltage Termi-
nalWire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
Approx. Ignition
Switch
PositionOperation or Conditions
SIIA1910J
SIIA1910J
PKIA1935E

BL-76
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for BCMNIS001XE
*1: In the state that hazard reminder operates.
*2: In the state that room lamp switch is in “DOOR” position.
Terminals and Reference Value for IPDM E/RNIS001XF
Te r m i -
nalWire
ColorItemSignal
Input/
OutputConditionVoltage (V)
Approx.
11 V Ignition switch (ACC) Input Ignition switch is in ACC or ON position Battery voltage
12 PFront door switch passenger
sideInput Door open (ON) → Close (OFF) 0 → 8
13 O/L Rear door switch RH Input Door open (ON) → Close (OFF) 0 → Battery voltage
37 LG Key switch signal InputInsert Intelligent Key into key slot. Battery voltage
Remove Intelligent Key from key slot. 0
38 W Ignition switch (ON) InputIgnition switch is in ON or START posi-
tion.Battery voltage
39 L CAN-HInput/
Output——
40 P CAN-LInput/
Output——
42 P Power supply (fuse) Input — Battery voltage
52 B Ground — — 0
55 W Power supply (Fusible link) Input — Battery voltage
57 SB Trunk room lamp switch Input Trunk lid open (ON) → Close (OFF) 0 → Battery voltage
62 V Front door switch driver side Input Door open (ON) → Close (OFF) 0 → Battery voltage
63 R/G Rear door switch LH Input Door open (ON) → Close (OFF) 0 → Battery voltage
Te r m i n a l Wire
ColorItemSignal
Input/
OutputConditionVoltage (V)
Approx.
48 G/B Horn relay Output Press panic alarm bottom.Horn sounds. 0
Horn does not sound. Battery voltage
49 L CAN-HInput/
Output——
50 P CAN-LInput/
Output——

BL-92
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Check Key SlotNIS001XN
1. CHECK KEY SLOT INPUT SIGNAL
Check voltage between Intelligent Key unit harness connector and ground.
OK or NG
OK >> Key slot is OK.
NG >> GO TO 2.
2. CHECK KEY SLOT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between slot connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace key slot power supply circuit.
3. CHECK KEY SLOT
Check key slot.
OK or NG
OK >> GO TO 4.
NG >> Replace key slot.
Terminals
ConditionVoltage (V)
(Approx.) (+)
(–)
Intelligent Key
unit connectorTerminal
M32 19 GroundIntelligent Key inserted Battery voltage
Intelligent Key removed 0
PIIB6319E
Terminals
Voltage (V)
(Approx.) (+)
(–)
Key slot connector Terminal
M14 1 Ground Battery voltage
PIIB6320E
Terminal
Condition Continuity
Key slot
13Intelligent Key inserted Yes
Intelligent Key removed No
PIIB6321E

BL-124
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Intelligent Key Battery ReplacementNIS001Y6
DISASSEMBLY AND ASSEMBLY OF INTELLIGENT KEY
1. Release the lock knob at the back of the Intelligent Key and remove the mechanical key.
2. Insert a flat-blade screwdriver (A) wrapped with a close into the
slit of the corner and twist it to separate the upper part from the
lower part.
CAUTION:

Be careful not to touch the circuit board or battery termi-
nal.

The key fob is water-resistant. However, if it does get wet,
immediately wipe it dry.
3. Replace the battery with new one.
4. Align the tips of the upper and lower parts, and then push them
together until it is securely closed.
CAUTION:

When replacing battery, be sure to keep dirt, grease, and
other foreign materials off the electrode contact area.

After replacing the battery, check to make sure all Intelli-
gent Key functions work normally.
INTELLIGENT KEY BATTERY INSPECTION
Check by connecting a resistance (approximately 300Ω) so that the
current value becomes about 10 mA.
PIIB6221E
PIIB6222E
Standard : Approx. 2.5 - 3.0V
OCC0607D

BL-126
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
System DescriptionNIS001Y8

The engine start function of Intelligent Key system is a system that makes it possible to start and stop the
engine without removing the key. It verifies the electronic ID using two-way communications when press-
ing the push-button ignition switch while carrying the Intelligent Key, which operates based on the results
of electronic ID verification for Intelligent Key using two-way communications between the Intelligent Key
and the vehicle (Intelligent Key unit).
NOTE:
The driver should always carry the intelligent key at all times.

Intelligent Key has 2 IDs (for Intelligent Key and for immobilizer). It can perform the door lock/unlock oper-
ation and the push-button ignition switch operation when carrying the registered Intelligent Key.

When the Intelligent Key battery is discharged, it can be used as emergency by inserting the Intelligent
Key to the key slot. At that time, perform the immobilizer ID verification. If it is used when carrying the
Intelligent Key, perform the Intelligent Key ID verification.

If the ID is successfully verified, and when push-button ignition switch is pressed, steering lock will be
released and initiating the engine will be possible.

If the door lock/unlock operation is performed when the Intelligent Key battery is discharged, all doors
lock/unlock can be performed by operating the driver door key cylinder using the mechanical key set into
the Intelligent Key.

Intelligent Key can be registered up to 4 keys (Including the standard Intelligent Key) on request from the
owner.
NOTE:

Refer to BL-43, "INTELLIGENT KEY SYSTEM" for any functions other than engine start function of
Intelligent Key system.
10. Unified meter and A/C amp M64,
M6511. Combination meter M52 12. Security indicator
(Multifunction switch) M69
13. Steering lock unit M35
(Steering column)14. Remote keyless entry receiver
(View with instrument lower panel
RH removed) M89 15. Key slot M14
PIIB5896E

BL-142
INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION
Revision: 2007 April2007 M35/M45
10 VPush-button ignition
switch ON indicatorOutputONPush-button ignition switch is in
ON position0
—Push-button ignition switch is in
any position
(Except ON position)1.2
13 LG/B Key slot illumination Output LOCKInsert Intelligent Key into key slot
and driver side door is open.Battery voltage
Remove Intelligent Key from key
slot.0
15 LGSteering lock unit
power sourceOutput LOCK — Battery voltage
16 P/BSteering lock unit sig-
nalInput/
OutputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock
(Unlocked moment)0
NO 0
19 BR/Y Key switch signal Input LOCKInsert Intelligent Key into key
slot.0
Remove Intelligent Key from key
slotBattery voltage
20 B Ground — — — 0
27 VA/T device (Detention
switch)InputLOCK A/T selector lever is in P position 0
ON Other than above Battery voltage
28 SB Starter relay InputONA/T selector lever is in N or P
positionBattery voltage
—Ignition switch position is in
LOCK position or A/T selector
lever is in any position other than
N or P position0
29 V/R Stop lamp switch Input —Brake pedal depressed Battery voltage
Brake pedal released 0
30 L/WIgnition power supply
(ACC)Input ACCIgnition switch position is in ACC
or ON positionBattery voltage
31 GRIgnition power supply
(ON)Input ONIgnition switch position is in ON
or START positionBattery voltage
33 O PDU signal InputLOCK Steering lock: Lock 0
ACC Steering lock: Unlock 8
34 R PDU feed back signal InputLOCKSleep condition (30 seconds or
more after all doors are closed
under the condition that the igni-
tion switch position is in the
LOCK position)1
—Wake-up condition (any condition
other than above)0 Te r m i -
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions