Nissan Pathfinder (2007 year). Instruction — part 101

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-101

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F

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A

B

BL

2007 Pathfinder

Work Flow

EIS007QG

LIIA1152E

BL-102

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

2007 Pathfinder

Trouble Diagnoses

EIS007QH

SYMPTOM MATRIX CHART 1

Self-diagnosis related item

*: When NVIS (NATS) detects trouble, the security indicator lights up while ignition key is in the “ON” position.

Symptom

Displayed “SELF-DIAG

RESULTS” on CON-

SULT-II screen.

Diagnostic Procedure

(Reference page)

System

(Malfunctioning part or

mode)

Reference Part No. Of

Illustration On System

Diagram

●

Security indicator
lighting up*

●

Engine cannot be
started

CHAIN OF ECM-IMMU

[P1612]

PROCEDURE 1

(

BL-104

)

In rare case, “CHAIN OF
ECM-IMMU” might be
stored during key regis-
tration procedure, even if
the system is not mal-
functioning.

—

Open circuit in battery
voltage line of BCM cir-
cuit

C1

Open circuit in ignition
line of BCM circuit

C2

Open circuit in ground
line of BCM circuit

C3

Open or short circuit
between BCM and ECM
communication line

C4

ECM

B

BCM

A

DIFFERENCE OF KEY

[P1615]

PROCEDURE 2

(

BL-105

)

Unregistered key

D

BCM

A

CHAIN OF IMMU-KEY

[P1614]

PROCEDURE 5

(

BL-108

)

Malfunction of key ID
chip

E5

Communication line
between ANT/ AMP and
BCM:
Open circuit or short cir-
cuit of battery voltage
line or ground line

E1

E2

Open circuit in power
source line of ANT/ AMP
circuit

E3

Open circuit in ground
line of ANT/ AMP circuit

E4

NATS antenna amp.

E6

BCM

A

ID DISCORD, IMM-ECM

[P1611]

PROCEDURE 3

(

BL-106

)

System initialization has
not yet been completed.

F

ECM

B

LOCK MODE

[P1610]

PROCEDURE 4

(

BL-107

)

LOCK MODE

D

Security indicator light-
ing up*

DON'T ERASE

BEFORE CHECKING

ENG DIAG

WORK FLOW

(

BL-101

)

Engine trouble data and
NVIS (NATS) trouble
data have been detected
in ECM

—

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-103

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2007 Pathfinder

SYMPTOM MATRIX CHART 2

Non self-diagnosis related item

*: CONSULT-II self-diagnostic results display screen “no malfunction is detected”.

DIAGNOSTIC SYSTEM DIAGRAM

Symptom

Diagnostic Procedure

(Reference page)

System

(Malfunctioning part or mode)

Reference Part No. Of Illustra-

tion On System Diagram

Security indicator does not light
up*.

PROCEDURE 6

(

BL-111

)

Combination meter (security
indictor lamp)

—

Open circuit between Fuse and
BCM

—

BCM

A

WIIA0550E

BL-104

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

2007 Pathfinder

Diagnostic Procedure 1

EIS007QI

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

BL-98, "CONSULT-II"

.

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 above?

Yes

>> GO TO 2.

No

>> GO TO

BL-102, "SYMPTOM MATRIX CHART 1"

.

2.

CHECK POWER SUPPLY CIRCUIT FOR BCM

1.

Turn ignition switch OFF.

2.

Check voltage between BCM connector M20 terminal 70 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check the following:

●

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

●

Harness for open or short between fuse and BCM
connector
Ref. Part No. C1

3.

CHECK IGN SW. ON SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between BCM connector M18 terminal 38 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Check the following:

●

10A fuse [No. 1, located in the fuse block (J/B)]

●

Harness for open or short between fuse and BCM
connector
Ref. part No. C2

PIIA1260E

70 - Ground

: Battery voltage

LIIA1279E

38 - Ground

: Battery voltage

LIIA0527E

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-105

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B

BL

2007 Pathfinder

4.

CHECK GROUND CIRCUIT FOR BCM

1.

Turn ignition switch OFF.

2.

Disconnect BCM.

3.

Check continuity between BCM connector M20 terminal 67 and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace harness. Ref. part No. C3

5.

REPLACE BCM

1.

Replace BCM. Ref. part No. A

2.

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Instruction NATS-IVIS/NVIS”.

Does the engine start?

Yes

>> BCM is malfunctioning.

No

>> ECM is malfunctioning.

●

Replace ECM. Ref. part No. B

●

Perform initialization or re-communicating function.

●

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

●

For re-communicating function, refer to

BL-96, "ECM Re-communicating Function"

.

Diagnostic Procedure 2

EIS007QJ

Self-diagnostic results:
“DIFFERENCE OF KEY” displayed on CONSULT-II screen

1.

CONFIRM SELF-DIAGNOSTIC RESULTS

Confirm SELF-DIAGNOSTIC RESULTS “DIFFERENCE OF KEY”
displayed on CONSULT-II screen.

Is CONSULT-II screen displayed as above?

Yes

>> GO TO 2.

No

>> GO TO

BL-102, "SYMPTOM MATRIX CHART 1"

.

67 - Ground

:Continuity should exist.

LIIA1040E

PIIA1261E

BL-106

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

2007 Pathfinder

2.

PERFORM INITIALIZATION WITH CONSULT-II

Perform initialization with CONSULT-II. Re-register all NATS ignition key IDs.
For initialization and registration of NATS ignition key IDs, refer to “CONSULT-II Operation Instruction NATS-IVIS/
NVIS”.

NOTE:
If the initialization is not completed or malfunctions, CONSULT-II
shows message on the screen.

Can the system be initialized and can the engine be started with re-
registered NATS ignition key?

Yes

>> Ignition key ID was unregistered. Ref. part No. D

No

>> BCM is malfunctioning.

●

Replace BCM. Ref. part No. A

●

Perform initialization with CONSULT-II.

●

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

Diagnostic Procedure 3

EIS007QK

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 above?

Yes

>> GO TO 2.

No

>> GO TO

BL-102, "SYMPTOM MATRIX CHART 1"

.

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 Instruction NATS-
IVIS/NVIS”.

NOTE:
If the initialization is not completed or malfunctions, CONSULT-II
shows message on the screen.

Can the system be initialized?

Yes

>>

●

Start engine. (END)

●

(System initialization had not been completed. Ref.
part No. F )

No

>> ECM is malfunctioning.

●

Replace ECM. Ref. part No. B

●

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Instruction NATS-IVIS/NVIS”.

SEL297W

PIIA1262E

SEL297W

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

BL-107

C

D

E

F

G

H

J

K

L

M

A

B

BL

2007 Pathfinder

Diagnostic Procedure 4

EIS007QL

Self-diagnostic results:
“LOCK MODE” displayed on CONSULT-II screen

1.

CONFIRM SELF-DIAGNOSTIC RESULTS

Confirm SELF-DIAGNOSTIC RESULTS “LOCK MODE” is displayed
on CONSULT-II screen.

Is CONSULT-II screen displayed as above?

Yes

>> GO TO 2.

No

>> GO TO

BL-102, "SYMPTOM MATRIX CHART 1"

.

2.

ESCAPE FROM LOCK MODE

1.

Turn ignition switch OFF.

2.

Turn ignition switch ON with registered key. (Do not start engine.) Wait 5 seconds.

3.

Return the key to OFF position. Wait 5 seconds.

4.

Repeat steps 2 and 3 twice (total of three cycles).

5.

Start the engine.

Does engine start?

Yes

>> System is OK (Now system is escaped from “LOCK MODE”). Clear all codes.

No

>> GO TO 3.

3.

PERFORM INITIALIZATION WITH CONSULT-II

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Instruction NATS-
IVIS/NVIS”.

NOTE:
If the initialization is not completed or malfunctions, CONSULT-II
shows the message on the screen.

Can the system be initialized?

Yes

>> System is OK.

No

>> GO TO 4.

PIIA1264E

SEL297W

BL-108

NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)

2007 Pathfinder

4.

PERFORM INITIALIZATION WITH CONSULT-II AGAIN

1.

Replace BCM.

2.

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Instruction NATS-
IVIS/NVIS”.

NOTE:
If the initialization is not completed or malfunctions, CONSULT-II
shows the message on the screen.

Can the system be initialized?

Yes

>> System is OK. BCM is malfunctioning. Ref. part No. A

No

>> ECM is malfunctioning.

●

Replace ECM. Ref. part No. B

●

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation
Instruction NATS-IVIS/NVIS”.

Diagnostic Procedure 5

EIS007QM

Self-diagnostic results:
“CHAIN OF IMMU-KEY” displayed on CONSULT-II screen

1.

CONFIRM SELF-DIAGNOSTIC RESULTS

Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF IMMU-KEY”
displayed on CONSULT-II screen.

Is CONSULT-II screen displayed as above?

Yes

>> GO TO 2.

No

>> GO TO

BL-102, "SYMPTOM MATRIX CHART 1"

.

2.

CHECK NATS ANTENNA AMP. INSTALLATION

Check NATS antenna amp. installation. Refer to

BL-112, "How to Replace NATS Antenna Amp."

.

OK or NG

OK

>> GO TO 3.

NG

>> Reinstall NATS antenna amp. correctly.

3.

CHECK NVIS (NATS) IGNITION KEY ID CHIP

Start engine with another registered NATS ignition key.

Does the engine start?

Yes

>> Ignition key ID chip is malfunctioning.

●

Replace the ignition key.
Ref. part No. E5

●

Perform initialization with CONSULT-II.
For initialization, refer to “CONSULT-II Operation Instruction NATS-IVIS/NVIS”.

No

>> GO TO 4.

SEL297W

PIIA1263E