Nissan Pathfinder (2005 year). Instruction — part 102
NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-103
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2005 Pathfinder
Terminals and Reference Value for BCM
EIS0040J
CONSULT-II
EIS0040K
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1.
Turn ignition switch OFF.
2.
Insert NVIS (NATS) program card into CONSULT-II.
3.
Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector.
4.
Turn ignition switch ON.
5.
Touch “START”.
Terminal
Wire
Color
Item
Condition
Voltage (V)
(Approx.)
21
GR
NATS antenna amp.
Ignition switch (OFF
→
ON)
Just after turning ignition switch
ON: Pointer of tester should move.
23
G
Security indicator lamp
Goes OFF
→
illuminates (Every 2.4
seconds)
Battery voltage
→
0
25
BR
NATS antenna amp.
Ignition switch (OFF
→
ON)
Just after turning ignition switch
ON: Pointer of tester should move.
38
W/R
Ignition switch (ON or START)
Ignition switch (ON or START posi-
tion)
Battery voltage
39
L
CAN-H
—
—
40
P
CAN-L
—
—
57
R/Y
Power source (BAT)
—
Battery voltage
67
B
Ground
—
0
70
W
Power source (BAT)
—
Battery voltage
Program card
: NATS (AEN02C-1)
BBIA0538E
PBR455D
BL-104
NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
2005 Pathfinder
6.
Touch "OTHER"
7.
Select “NATS V.5.0”.
If “NATS V5.0” is not indicated, go to
.
8.
Perform each diagnostic test mode according to each service
procedure.
For further information, see the CONSULT-II Operation Instruction
NATS-IVIS/NVIS.
CONSULT-II DIAGNOSTIC TEST MODE FUNCTION
NOTE:
●
When any initialization is performed, all IDs 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.
●
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.
LIIA0556E
SEL027X
SEL150X
CONSULT-II DIAGNOSTIC TEST
MODE
Description
C/U INITIALIZATION
When replacing any of the following components, C/U initialization and re-registration of all
NATS ignition keys are necessary.
(NATS ignition key/ BCM/ ECM)
SELF-DIAG RESULTS
Detected items (screen terms) are as shown in the chart.
Refer to
BL-105, "NVIS (NATS) SELF-DIAGNOSTIC RESULTS ITEM CHART"
.
NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-105
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2005 Pathfinder
HOW TO READ SELF-DIAGNOSTIC RESULTS
NVIS (NATS) SELF-DIAGNOSTIC RESULTS ITEM CHART
PIIA1124E
Detected items
[NVIS (NATS) program card screen
terms]
P No. Code
(Self-diagnostic
result of
“ENGINE”)
Malfunction is detected when. .
Reference
page
CHAIN OF ECM-IMMU
[P1612]
NATS MAL-
FUNCTION
P1612
Communication impossible between ECM and BCM
In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is
not malfunctioning.
Refer to
.
DIFFERENCE OF KEY
[P1615]
NATS MAL-
FUNCTION
P1615
BCM can receive the key ID signal but the result of ID
verification between key ID and BCM is NG.
Refer to
.
CHAIN OF IMMU-KEY
[P1614]
NATS MAL-
FUNCTION
P1614
BCM cannot receive the key ID signal.
Refer to
.
ID DISCORD, IMM-ECM
[P1611]
NATS MAL-
FUNCTION
P1611
The result of ID verification between BCM and ECM is
NG. System initialization is required.
Refer to
.
LOCK MODE
[P1610]
NATS MAL-
FUNCTION
P1610
When the starting operation is carried out five or more
times consecutively under the following conditions, NVIS
(NATS) will shift the mode to one which prevents the
engine from being started.
●
Unregistered ignition key is used.
●
BCM or ECM malfunctioning.
Refer to
.
DON'T ERASE BEFORE CHECK-
ING ENG DIAG
—
All engine trouble codes except NVIS (NATS) trouble
code has been detected in ECM.
Refer to
.
BL-106
NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
2005 Pathfinder
Work Flow
EIS0040L
LIIA1152E
NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-107
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2005 Pathfinder
Trouble Diagnoses
EIS0040M
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
)
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
(
)
Unregistered key
D
BCM
A
CHAIN OF IMMU-KEY
[P1614]
PROCEDURE 5
(
)
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
(
)
System initialization has
not yet been completed.
F
ECM
B
LOCK MODE
[P1610]
PROCEDURE 4
(
)
LOCK MODE
D
Security indicator light-
ing up*
DON'T ERASE
BEFORE CHECKING
ENG DIAG
WORK FLOW
)
Engine trouble data and
NVIS (NATS) trouble
data have been detected
in ECM
—
BL-108
NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
2005 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
)
Combination meter (security
indictor lamp)
—
Open circuit between Fuse and
BCM
—
BCM
A
WIIA0550E
NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
BL-109
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2005 Pathfinder
Diagnostic Procedure 1
EIS0040N
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
.
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-107, "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
BL-110
NVIS(NISSAN VEHICLE IMMOBILIZER SYSTEM-NATS)
2005 Pathfinder
4.
CHECK GROUND CIRCUIT FOR BCM
1.
Turn ignition OFF.
2.
Disconnect BCM.
3.
Check continuity between BCM connector M18 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-101, "ECM Re-communicating Function"
.
Diagnostic Procedure 2
EIS0040O
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-107, "SYMPTOM MATRIX CHART 1"
.
67 - Ground
:Continuity should exist.
LIIA1040E
PIIA1261E
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