2007 INFINITI M35 ecm

BL-266
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
7. Select “NATS V.5.0”.
If “NATS V5.0” is not indicated, go to GI-39, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
8. Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation Manual
NATS-IVIS/NVIS.
CONSULT-II DIAGNOSTIC TEST MODE FUNCTION
NOTE:

When any initialization is performed, all ID previously registered will be erased and all NATS ignition keys
must be registered again.

The engine cannot be started with an unregistered key. In this case, the system will show “DIFFERENCE
OF KEY” or “LOCK MODE” as a self-diagnostic result on the CONSULT-II screen.
PIIB6275E
PIIB6276E
System Diagnosis mode DescriptionReference
page
NATS V5.0C/U INTIALIZATIONPerform registration again after repair, part replacement, and
additional key ID registration.
CAUTION:
“Control Unit Initialization” is activated only after per-
forming “Release steering lock”.Refer to the
Technical Bul-
letin.
SELF-DIAG RESULTS

Malfunctioning system stored in the ECM is displayed.

Printing the contents

Erasing the error recordBL-268
NATS BCM or S/ENTPIN READThe specified numbers of each control unit for acquisition of
password for control unit initialization are displayedRefer to the
Technical Bul-
letin.
STEERING LOCK
RELEASEIf the engine switch cannot be operated (the steering lock
cannot be released), release the steering lock forcibly and
make the engine switch operation possible.
CAUTION:
Always perform “Control Unit Initialization” and “Immo-
bilizer ID Registration” after performing “Release Steer-
ing Lock”.Refer to the
Technical Bul-
letin.
SELF-DIAG RESULTS

Malfunctioning system stored in the BCM is displayed.

Printing the contents

Erasing the error recordBL-268
NATS I-KEY SELF-DIAG RESULTS

Malfunctioning system stored in the Intelligent Key unit is
displayed.

Printing the contents

Erasing the error recordBL-269

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Revision: 2007 April2007 M35/M45

In rare case, “CHAIN OF ECM-IMMU” might be stored as a self-diagnostic result during key registration
procedure, even if the system is not malfunctioning.
HOW TO READ SELF-DIAGNOSTIC RESULTS
PIIB6280E

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.

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Revision: 2007 April2007 M35/M45
“NATS I-KEY” SELF-DIAGNOSTIC RESULTS ITEM CHART
Work FlowNIS0020O
1. LISTEN TO CUSTOMER COMPLAINT OR REQUEST
Get symptoms or listen to customer complaints or request.
NOTE:
In case of request for Intelligent Key or IVIS (NATS) system repair, the key ID re-registration might be neces-
sary. Keep all the Intelligent Keys before work for the re-registration.
Key ID registration request>>Register Intelligent Key by referring to CONSULT-II operation manual IVIS/
NVIS NATS.
Request for malfunction repair.>>GO TO 2.
2. CHECK DOOR LOCK AND REMOTE CONTROL FUNCTION
Check that Door Lock and remote control function of Intelligent Key operate normally.
Door Lock or remote control function is malfunctioning.>>Malfunction of Door Lock function, Refer toBL-77,
"WORK FLOW" .
Door Lock and remote control function are normal.>>GO TO 3.
DISCORD BCM-I-KEY
[B2194]The ID verification results
between BCM and Intelligent
Key unit are NG.Short circuit in communication
line between BCM and Intelli-
gent Key unit 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" . Short circuit in communication
line between BCM and ECM to
ground
Intelligent Key unit malfunctionBL-123
ANTI-SCANNING
[B2195]A remote control starter that is
not Genuine NISSAN is
installedIf a remote control starter that is
not Genuine NISSAN is
installed, the anti-theft system
is activated and the engine may
not be started. In this case,
remove the parts after the cus-
tomer understands the situa-
tion.— Suspect Systems Description Possible malfunction Action to take/Reference page
Suspect Systems Description Possible malfunction Action to take/Reference page
NO DTC NO DTC — —
DISCORD BCM-I-KEY
[B2590]The ID verification results
between Intelligent Key unit
and BCM are NG.Short circuit in communication
line between BCM and Intelli-
gent Key unit 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" . Short circuit in communication
line between BCM and ECM to
ground
BCM malfunctionBCS-15

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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7. TROUBLE DIAGNOSIS
Repair IVIS (NATS) according to “SELF DIAGNOSIS”.
NOTE:
Do not erase “SELF DIAGNOSIS” using CONSULT-II.
>> GO TO 8.
8. CONFIRM SELF DIAGNOSIS
Confirm SELF DIAGNOSIS “ECM” using CONSULT-II.
>> GO TO 9.
9. CONFIRM SELF DIAGNOSIS DISPLAY
In case that malfunction of engine control system is displayed other than “NATS MALFUNCTION” in “SELF
DIAGNOSIS”, repair engine control system.
NOTE:
In case that only “NATS MALFUNCTION” is displayed, erase record of “SELF DIAGNOSIS”.
>> GO TO 10.
10. CHECK ENGINE FOR START
Check that the engine can be started when Push-button ignition switch is operated with Intelligent Key
inserted into the key slot.
NG >> GO TO 2.
OK >> GO TO 11.
11 . CONFIRM SELF DIAGNOSIS
Confirm SELF DIAGNOSIS “ECM” using CONSULT-II.
“NO DTC” is displayed.>>Inspection END.
Malfunction information is displayed.>>GO TO 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

BL-276
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
Revision: 2007 April2007 M35/M45
2. CHECK POWER SUPPLY CIRCUIT FOR BCM
Check voltage between BCM and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

50A fusible link (letter F , located in the fuse and fusible link box)

10A fuse [No.21, located in the fuse block (J/B)]

15A fuse [No. 1, located in the fuse block (J/B)]

Harness for open or short between fusible link and BCM

Harness for open or short between fuse and BCM
3. CHECK GROUND CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. REPLACE BCM
1. Replace BCM
2. Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”.
Does the engine start?
Yes >> BCM is malfunctioning.

Replace BCM.

Perform initialization with CONSULT-II

For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”
No >> ECM is malfunctioning.

Replace ECM.

Perform initialization or re-communicating function

For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”

For re-communicating function, refer to BL-248, "ECM Re-Communicating Function"
Te r m i n a l s
Condition of
ignition switchVoltage (V)
(Approx.) (+)
(–)
BCM connector Terminal
M1 38
GroundON
Battery voltage
M242
OFF
55
PIIB5934E
BCM connector Terminal
GroundContinuity
M2 52 Yes
PIIB5935E

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)
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Revision: 2007 April2007 M35/M45
DTC P1611 ID DISCORD, IMM-ECMNIS0020T
Self-diagnostic results:
“ID DISCORD, IMM-ECM” displayed on CONSULT-II screen
1. CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “ID DISCORD, IMM-ECM” displayed on CONSULT-II screen.
NOTE:
“ID DISCORD IMM-ECM”:
Registered ID of BCM is in discord with that of ECM.
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" .
2. PERFORM INITIALIZATION WITH CONSULT-II
Perform initialization with CONSULT-II. Re-register all NATS ignition key IDs.
For initialization, refer to “CONSULT-II Operation Manual NATS-
IVIS/NVIS”.
NOTE:
If the initialization is not completed or malfunctions, CONSULT-II
shows message on the screen.
Can the system be initialized?
Ye s > >
Start engine. (END)

(System initialization had not been completed.)
No >> ECM is malfunctioning.

Replace ECM.

Perform initialization with CONSULT-II
For initialization, refer to “CONSULT-II Operation Manual NATS-IVIS/NVIS”
Removal and Installation of Key SlotNIS0020U
REMOVAL
1. Remove instrument driver lower panel. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Disconnect key slot connector.
3. Remove key slot mounting screw, and then remove key slot.
INSTALLATION
Installation is in the reverse order of removal.
PIIA1262E
SEL297W
PIIB6284E