2007 INFINITI M35 key battery

BL-262
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for Steering Lock UnitNIS0020J
69 OSteering lock unit con-
dition signal-1InputLOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
70 L/YSteering lock unit con-
dition signal-2InputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
71 LG PDU signal OutputLOCK Steering lock: Lock Battery voltage
ACC Steering lock: Unlocked moment 0
72 B Ground — — — 0 Termi-
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
Termi-
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-but-
ton ignition
switch posi-
tionOperation or conditions
1 GR PDU signalInput/
OutputLOCKPress push-button ignition
switch with Intelligent Key
inside vehicle0 → Battery voltage → 0
(Battery voltage is detected when
pressing the push-button ignition
switch)
3 O Condition signal-1 InputLOCK Steering lock: Lock 0
ACC
Steering lock: UnlockBattery voltage
ON Battery voltage
4P/BIntelligent Key unit
signalInputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0
5 B Ground — — — 0
6 B Ground — — — 0
7 LG Power source Input — — Battery voltage
8 L/Y Condition signal-2 InputLOCK Steering lock: Lock Battery voltage
ACC
Steering lock: Unlock0
ON 0

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-263
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Revision: 2007 April2007 M35/M45
Terminals and Reference Value for BCMNIS0020K
Terminals and Reference Value for IPDM E/RNIS0020L
Termi-
nal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-but-
ton igni-
tion
switch
positionOperation or conditions
21 GRNATS antenna
amp.
(Built-in key slot)Input/
OutputLOCKIgnition switch is pressed
while inserting the Intelligent
Key into the key slotJust after pressing ignition switch.
Pointer of tester should move
23 W/V Security indicator Output LOCKIntelligent Key is removed
from key slot and power sup-
ply position is in LOCK posi-
tionBattery voltage → 0
(Every 2.4 seconds)
25 W/RNATS antenna
amp.
(Built-in key slot)Input/
OutputLOCKIgnition switch is pressed
while inserting the Intelligent
Key into the key slotJust after pressing ignition switch.
Pointer of tester should move
37 LGKey slot
(Key switch signal)Input LOCKIntelligent Key is removed
from key slot0
Intelligent Key is inserted into
key slotBattery voltage
38 WIgnition power sup-
ply (ON or START)Input ONPower supply position is in
ON positionBattery voltage
39 L CAN HInput/
Output—— —
40 P CAN LInput/
Output—— —
42 PPower source
(fuse)Input — — Battery voltage
52 B Ground — — — 0
55 WPower source
(Fusible link)Input — — Battery voltage
Te r m i -
nal No.Wire
ColorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-button
ignition switch
positionOperation or conditions
4W/RStarter motor power
supplyOutputLOCK — 0
START Starter motor is activating Battery voltage
49 L CAN HInput/
Output—— —
50 P CAN LInput/
Output—— —
53 GR/RA/T Shift position
signalInputON A/T shift position is P/ N position Battery voltage
LOCK Other than above 0

BL-264
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
Terminals and Reference Value for PDUNIS0020M
Te r -
minal
No.Wire
colorItemSignal
Input/
OutputCondition
Voltage (V)
(Approx.) Push-
button
ignition
switch
positionOperation or conditions
1 P Wake up signal InputLOCKSleep condition (30 seconds or
more after all doors are closed
under the condition that the power
supply position is in the LOCK posi-
tion)Battery voltage
—Wake-up condition (Open driver
door)0
2GStarter control sig-
nalInputON At starter motor cranking 0
— Any condition other than above Battery voltage
3GRSteering lock unit
power sourceOutputLOCKPush-button ignition switch is
pressed under the condition that
Intelligent Key is in the vehicle or
Intelligent Key is inserted0 → Battery voltage → 0
— Any condition other than above 0
6VSteering lock control
signal-1Input—Push-button ignition switch is
pressed under the condition that
Intelligent Key is in the vehicle or
Intelligent Key is insertedBattery voltage
LOCKPower supply position is in LOCK
position
(Steering lock activated)Battery voltage → 0 →
Battery voltage
(Battery voltage is detected
when activating the steer-
ing lock)
7LGSteering lock control
signal-2Input—Push-button ignition switch is
pressed under the condition that
Intelligent Key is in the vehicle or
Intelligent Key is insertedBattery voltage
LOCKPower supply position is in LOCK
position
(Steering lock activated)Battery voltage → 0 →
Battery voltage
(Battery voltage is detected
when activating the steer-
ing lock)
9OSteering lock feed
back signalInput—Power supply position is in ACC or
ON position0
LOCKPower supply position is in LOCK
position0 → 8 → 0
(0V is detected when acti-
vating the steering lock)
10 B Ground — — — 0
11 YIPDM E/R current
signalInputSTART At starter motor cranking 5
LOCK Any condition other than above 2
12 R Feed back signal InputLOCKSleep condition (30 seconds or
more after all doors are closed
under the condition that the power
supply position is in the LOCK posi-
tion)1
—Wake-up condition (any condition
other than above)0
13 R Starter relay OutputSTART At starter motor cranking Battery voltage
— Any condition other than above 4

BL-268
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
“NATS V5.0” SELF-DIAGNOSTIC RESULTS ITEM CHART
“NATS BCM OR S/ENT” SELF-DIAGNOSTIC RESULTS ITEM CHART
Suspect Systems Description Possible malfunction Action to take/Reference page
NO DTC NO DTC — —
DON'T ERASE BEFORE
CHECKING ENG DIAGThere is the engine trouble
diagnosis information in ECM
(ECM trouble diagnosis is nec-
essary separately)Engine control system malfunc-
tionThere is the engine trouble
diagnosis information in ECM.
Check the trouble diagnostic
results of “ENGINE” before
that.
LOCK MODE
[P1610]The immobilizer switches to the
mode that prevents the engine
from being started. If the ID ver-
ification between BCM and
ECM is NG, the ID verification
malfunction between remote
control starter and BCM may be
detected 5 times or more.—When “LOCK MODE” is dis-
played, check for any other dis-
played malfunction, and then
erase the self-diagnostic results
after replacement.
ID DISCORD, IMM-ECM
[P1611]The ID verification results
between BCM and ECM are
NG. The registration is neces-
sary.Registration of ECM is not com-
pletedBL-277
ECM malfunction Replace ECM.
CHAIN OF ECM-IMMU
[P1612]Inactive communication
between ECM and BCMOpen circuit in battery power
supply line of BCM
BL-275
Open circuit in ignition power
supply line of BCM
Open circuit in ground of BCM
Short circuit in communication
line between BCM and ECM to
power supply line
Open circuit in communication
line between BCM and ECM
Short circuit in communication
line between BCM and ECM to
ground
ECM malfunction
BCM malfunction
CHAIN OF IMMU-KEY
[P1614]BCM malfunction BCM malfunctionBCS-15
Suspect Systems Description Possible malfunction Action to take/Reference page
NO DTC NO DTC — —
ID DISCORD BCM-ECM
[B2192]The ID verification results
between BCM and ECM are
NG. The registration is neces-
sary.Registration of ECM is not com-
pletedPerform “Control Unit Initializa-
tion”, and then perform the ID
registration. Refer to the Tech-
nical Bulletin.
ECM malfunction Replace ECM.
CHAIN OF BCM-ECM
[B2193]Inactive communication
between ECM and BCMShort circuit in communication
line between BCM and ECM to
power supply lineMalfunction have occurred in
CAN communication
Check “Self-diagnostic Results”
of “Intelligent Key” using CON-
SULT-II. Refer to BL-150,
"SELF-DIAGNOSTIC
RESULTS" . Open circuit in communication
line between BCM and ECM
Short circuit in communication
line between BCM and ECM to
ground
ECM malfunction Replace ECM.

BL-270
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
3. CONFIRMATION BEFORE DIAGNOSIS
Before performing diagnostic procedure, grasp the operating systems with referring to the items below.

“System operation with carrying Intelligent Key”. Refer to BL-247, "OPERATION WHEN INTELLIGENT
KEY IS CARRIED" .

“System operation by using Key slot”. Refer to BL-247, "OPERATION WHEN INSERTING TO KEY SLOT"
.
>> GO TO 4.
4. CONFIRM SELF DIAGNOSIS 1
Start CONSULT-II with Push-button ignition switch in lock position and confirm SELF DIAG RESULT “Intelli-
gent Key”. Refer to BL-150, "
CONSULT-II Inspection Procedure" .
No malfunction>>GO TO 5.
Malfunction exist>>Repair the items displayed in “SELF DIAG RESULTS”. Refer to BL-150, "
SELF-DIAG-
NOSTIC RESULTS" .
5. CONFIRM SELF DIAGNOSIS 2
Start CONSULT-II with Push-button ignition switch in lock position and confirm SELF DIAG RESULTS “NATS
BCM or S/ENT” and “NATS I-KEY”. Refer toBL-265, "
CONSULT-II INSPECTION PROCEDURE" .
NOTE:
NATS program card is necessary to display “SELF DIAG RESULTS”.
No malfunction>>GO TO 6.
Malfunction exist>>Repair the items displayed in “SELF DIAG RESULTS”. Refer to BL-268, "
“NATS BCM OR
S/ENT” SELF-DIAGNOSTIC RESULTS ITEM CHART" and BL-269, "“NATS I-KEY” SELF-DIAG-
NOSTIC RESULTS ITEM CHART" .
6. CHECK INTELLIGENT KEY FUNCTION
Operate Push-button ignition switch with carrying Intelligent Key to check the power source position can be
turned with all of the Intelligent Keys.
CAUTION:
Operate Push-button ignition switch without depressing the brake pedal.
Can be operated with all of the Intelligent Keys>>GO TO 7.
Can not be operated with particular Intelligent Key>>Check the malfunctioning Intelligent Key. Refer to BL-
124, "INTELLIGENT KEY BATTERY INSPECTION" .
Can not be operated with any of the Intelligent Keys>>Perform Trouble diagnosis symptom chart 1. Refer to
BL-177, "
Trouble Diagnosis Symptom Chart 1" .
7. CHECK TURNING TIMING OF POWER SOURCE POSITION 1
Check the power source turning delay time after Push-button ignition switch is pushed. (Approx. 3 sec)
CAUTION:
Operate Push-button ignition switch without depressing the brake pedal.
No delay time exists>>GO TO 8.
Delay time exists>>Perform Trouble diagnosis symptom chart 2. Refer to BL-178, "
Trouble Diagnosis Symp-
tom Chart 2" .

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Revision: 2007 April2007 M35/M45
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect multifunction switch (security indicator) connector.
3. Check voltage between multifunction switch (security indicator)
connector and ground.
OK or NG
OK >> Check the following.

Harness for open or short between BCM and multifunction switch (security indicator)

Security indicator lamp condition
NG >> Check the following.

15A fuse [No.37, located in fuse block (J/B)]

Harness for open or short between multifunction switch (security indicator) and fuse
DTC P1612 CHAIN of ECM-IMMUNIS0020S
Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed 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-13, "
CAN Com-
munication Inspection Using CONSULT-II (Self-Diagnosis)" .
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU”
displayed on CONSULT-II screen.
NOTE:
In rare case, “CHAIN OF ECM-IMMU” might be stored during key
registration procedure, even if the system is not malfunctioning.
Is CONSULT-II screen displayed as shown in figure?
Ye s > > G O T O 2 .
No >> GO TO BL-268, "
“NATS V5.0” SELF-DIAGNOSTIC
RESULTS ITEM CHART" .
Terminals
Voltage (V)
(Approx.) (+)
(–) multifunction switch
(security indicator)
connectorTerminal
M69 1 Ground Battery voltage
PIIB6218E
PIIA1260E

WARNING CHIME
DI-67
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Revision: 2007 April2007 M35/M45
Terminals and Reference Value for BCMNKS003V4
71 B Ground (Power) ON — 0 V
72 P CAN–L — — — Terminal
No.Wire
colorItemCondition
Reference value
(Approx.) Ignition
switchOperation or condition
Terminal
No.Wire
colorItemCondition
Reference value
(Approx.) Ignition
switchOperation or condition
2 L/R Combination switch input 5 ONLighting switch is 1ST position
(Wiper dial position 4)
Lighting switch is OFF position 0 V
33 GR Combination switch output 4 ONLighting switch is 1ST position
(Wiper dial position 4)
Lighting switch is OFF position
37 LG Key switch signal OFFIntelligent Key is inserted into
key slot12 V
Intelligent Key is removed from
key slot0 V
38 W Ignition switch ON or START ON — Battery voltage
39 L CAN–H — — —
40 P CAN–L — — —
42 P Battery power supply OFF — Battery voltage
52 B Ground ON — 0 V
55 W Battery power supply OFF — Battery voltage
62 V Front door switch (driver side) OFFWhen driver side door is
opened (Door switch ON)0 V
When driver side door is closed
(Door switch OFF)12 V
PKIB4957J
PKIB4958J
PKIB4960J

FFD-2
PRECAUTIONS
Revision: 2007 April2007 M35/M45
PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNDS000EK
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.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
Service Notice or PrecautionsNDS000EL

Check for the correct installation status prior to removal or disassembly. If matching marks are required,
be certain they do not interfere with the function of the parts when applied.

Overhaul should be done in a clean work area, it is preferable to work in dustproof area.

Before disassembly, using steam or white gasoline, completely remove sand and mud from the exterior of
the unit, preventing them from entering into the unit during disassembly or assembly.

Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them
with a new ones if necessary.

Gaskets, seals and O-rings should be replaced any time when the unit is disassembled.

In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, observe it.

Clean and flush the parts sufficiently and blow-dry them.

Be careful not to damage sliding surfaces and mating surfaces.

When applying sealant, remove the old sealant from the mounting surface; then remove any moisture, oil,
and foreign materials from the application and mounting surfaces.

Always use shop paper for cleaning the inside of components.

Avoid using cotton gloves or shop rags to prevent entering of lint.

During assembly, observe the specified tightening torque, and apply new gear oil, petroleum jelly, or multi-
purpose grease as specified for each vehicle, if necessary.