Page 713 of 4331

BL-252< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
Terminal and Reference Value for BCM INFOID:0000000004678935
Terminal Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition
2 BR Combination switch
input 5 Input ONLighting, turn, wiper OFF
Wiper dial position 4
3 GR Combination switch
input 4 Input ONLighting, turn, wiper OFF
Wiper dial position 4
4 L Combination switch
input 3 Input ONLighting, turn, wiper OFF
Wiper dial position 4
5 G Combination switch
input 2
Input ONLighting, turn, wiper OFF
Wiper dial position 4
6 V Combination switch
input 1
7 7
BRFront door key cylin-
der switch LH (unlock) Input
OFFON (open, 2nd turn) Momentary 1.5V
OFF (closed) 0V
8 7
YFront door key cylin-
der switch LH (lock) InputOn (open) Momentary 1.5V
OFF (closed) 0V
9 W Rear window defogger
switch Input ONRear window defogger switch
ON 0V
Rear window defogger switch
OFF 5V
11 L Ignition switch (ACC
or ON) InputACC or
ON Ignition switch ACC or ON Battery voltage
12 SB Front door switch RH Input OFF ON (open) 0V
OFF (closed) Ba ttery voltage
13 GR Rear door switch RH Input OFF ON (open) 0V
OFF (closed) Ba ttery voltage
15 W Tire pressure warning
check connector Input OFF — 5V SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
Page 715 of 4331

BL-254< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
30 1
VBack door/trunk out-
put Output —Back door open (switch
closed) 0V
Back door closed (switch
open) 5V
30 3
VBack door opener
switch Input —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V
30 4
VTrunk lid opener
switch Input —All doors locked (SW OFF) Battery voltage
All doors unlocked (SW ON) 0V
32 LG Combination switch
output 5 Output ONLighting, turn, wiper OFF
Wiper dial position 4
33 Y Combination switch
output 4 Output ON
Lighting, turn, wiper OFF
Wiper dial position 4
34 V Combination switch
output 3 Output ONLighting, turn, wiper OFF
Wiper dial position 4
35 R Combination switch
output 2
Output ONLighting, turn, wiper OFF
Wiper dial position 4
36 P Combination switch
output 1
37 1
GKey switch and igni-
tion knob switch Input OFFIntelligent Key inserted Battery voltage
Intelligent Key removed 0V
37 2
GKey switch and key
lock solenoid Input OFFKey inserted Battery voltage
Key removed 0V
38 W Ignition switch (ON) Input ON — Battery voltage
39 L CAN-H — — — —
40 P CAN-L — — — —
41 6
WTrunk key cylinder
switch Input —ON (Full unlock position) 0V
OFF (Neutral position) 5V
42 6
Y Trunk lamp switch Input OFF ON (trunk open) 0V
OFF (trunk closed) Battery voltage
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
Page 716 of 4331

NATS (NISSAN ANTI-THEFT SYSTEM)
BL-255
< SERVICE INFORMATION >
C
D E
F
G H
J
K L
M A
B BL
N
O P
43
5
R Back door switch Input OFF ON (open) 0V
OFF (closed) Battery voltage
44 5
LG Rear wiper auto stop Input ON Rear wiper operating 0
Rear wiper stopped Battery
45 7
GR Lock switch Input OFF ON (lock) 0V
OFF Battery voltage
46 7
L Unlock switch Input OFF ON (unlock) 0V
OFF Battery voltage
47 BR Front door switch LH Input OFF ON (open) 0V
OFF (closed) Battery voltage
48 O Rear door switch LH Input OFF ON (open) 0V
OFF (closed) Battery voltage
49 P Luggage room lamp Output OFF Any door open (ON) 0V
All doors closed (OFF) Battery voltage
50 SB A/C indicator Output ON A/C OFF 0
A/C ON Battery voltage
53 5
RBack door lock assem-
bly (actuator) Output OFF Back door (open) Battery voltage
53 6
RTrunk lamp switch and
trunk release solenoid Output OFF Trunk lid (open) Battery voltage
55 5
VRear wiper motor out-
put Output ONOFF 0
ON Battery voltage
56 R Battery saver output Output OFF
30 minutes after ignition
switch is turned OFF 0V
ON — Battery voltage
57 LG Battery power supply Input OFF — Battery voltage
59 7
GFront door lock actua-
tor LH (unlock) Output OFFOFF (neutral) 0V
ON (unlock) Battery voltage
60 V Turn signal (left) Output ON Turn left ON
61 W Turn signal (right) Output ON Turn right ON
63 BR Interior room lamp Output OFF Any door
switch ON (open) 0V
OFF (closed) Battery voltage
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition SKIA3009J
SKIA3009J
Page 717 of 4331

ECM Re-communicating Function " .
NOTE:
• When any initialization is performed, all ID previ ously registered will be erased and all NATS mechanical
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-diagnos tic result on the CONSULT-III screen.
• In rare case, “CHAIN OF ECM-IMMU” might be stored as a self-diagnostic result during key registration pro-
cedure, even if the system is not malfunctioning.
NATS SELF-DIAGNOSTIC RESULTS ITEM CHART 65
7
SBAll door lock actuators
(lock) Output OFFOFF (neutral) 0V
ON (lock) Battery voltage
66 7
GFront door lock actua-
tor RH, rear door lock
actuators LH/RH (un-
lock) Output OFFOFF (neutral) 0V
ON (unlock) Battery voltage
67 B Ground Input ON — 0V
68 8
LPower window power
supply (RAP) Output —Ignition switch ON Battery voltage
Within 45 seconds after igni-
tion switch OFF Battery voltage
More than 45 seconds after ig-
nition switch OFF 0V
When front door LH or RH is
open or power window timer
operates 0V
69 8
P Battery power supply
OutputOFF
— Battery voltage
70 Y Battery power supply Input OFF — Battery voltage
Terminal
Wire
color Signal name Signal
input/
output Measuring condition
Reference value or waveform
(Approx.)
Ignition
switch Operation or condition CONSULT-III DIAGNOSTIC TEST
MODE Description
C/U INITIALIZATION When replacing any of the following components, C/U initialization and re-registration of all
NATS mechanical keys are necessary.
[NATS mechanical key/ BCM/ ECM*]
SELF-DIAG RESULTS Detected items (screen terms) are as shown in the chart.
Refer to "NATS SELF-DIAGNOSTIC RESULTS ITEM CHART" .
Page 718 of 4331

BL
N
O P
Trouble Diagnosis Procedure
INFOID:0000000004305142
PRELIMINARY CHECK Intelligent Key Battery Replacement " .
The engine cannot be started by all Intelligent Keys >> GO TO 3
The engine can be started by all Intelligent Keys >> GO TO 4 Trouble Diagnosis Symptom Chart " .
KEY warning lamp illuminates red >> Refer to BL-119, " Trouble Diagnosis Symptom Chart " .
Does not illuminate >> Refer to BL-119, " Trouble Diagnosis Symptom Chart " .DIFFERENCE OF KEY
[P1615] NATS MAL-
FUNCTION
P1615 BCM can receive the key ID signal but the result of ID ver-
ification between key ID and BCM is NG. BL-266CHAIN OF IMMU-KEY
[P1614] NATS MAL-
FUNCTION
P1614 BCM cannot receive the key ID signal.
BL-262ID DISCORD, IMM-ECM
[P1611] NATS MAL-
FUNCTION
P1611 The result of ID verification between BCM and ECM is NG.
System initialization is required. BL-263LOCK MODE
[P1610] NATS MAL-
FUNCTION
P1610 When the starting operation is carried out five or more
times consecutively under the following conditions, NATS
will shift the mode to one which prevents the engine from
being started.
• Unregistered mechanical key is used.
• BCM or ECM’s malfunctioning. BL-265DON'T ERASE BEFORE CHECK-
ING ENG DIAG —All engine trouble codes except NATS trouble code has
been detected in ECM. BL-257
Page 721 of 4331

CAN Com-
munication Inspection Using CONSULT-III (Self-Diagnosis) " .
SYMPTOM
Displayed “SELF-DIAG
RESULTS” on CON- SULT-III screen. DIAGNOSTIC PROCE-
DURE
(Reference page) SYSTEM
(Malfunctioning part or mode)
• Security indicator lighting up*
• Engine cannot be started CHAIN OF ECM-IMMU
[P1612] PROCEDURE 1
(BL-260 )
In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is
not malfunctioning.
Open circuit in battery voltage line of BCM circuit
Open circuit in ignition line of BCM circuit
Open circuit in ground line of BCM circuit
Open or short circuit between BCM and ECM commu-
nication line
ECM
BCM
DIFFERENCE OF KEY [P1615] PROCEDURE 6
(BL-266 )
Unregistered ignition key is used.
BCM is malfunctioning.
CHAIN OF IMMU-KEY [P1614] PROCEDURE 2
(BL-262 )
Malfunction of key ID chip
Communication line between ANT/ AMP and BCM:
Open circuit or short circuit of battery voltage line or
ground line
Open circuit in power source line of ANT/ AMP circuit
Open circuit in ground line of ANT/ AMP circuit
NATS antenna amp.
BCM
ID DISCORD, IMM- ECM
[P1611] PROCEDURE 3
(BL-263 )
System initialization has not yet been completed.
ECM
LOCK MODE [P1610] PROCEDURE 5
(BL-265 )
When the starting operation is carried out five or more
times consecutively under the following conditions,
NATS will shift the mode to one which prevents the en-
gine from being started.
• Unregistered ignition key is used.
• BCM or ECM’s malfunctioning.
Security indicator
lighting up* DON'T ERASE BE-
FORE CHECKING ENG DIAG WORK FLOW
(BL-257 )
Engine trouble data and NATS trouble data have been
detected in ECM SYMPTOM
DIAGNOSTIC PROCEDURE
(Reference page) SYSTEM
(Malfunctioning part or mode)
Security indicator does not light up*. PROCEDURE 4
(BL-264 )
Security indictor.
Open circuit between Fuse and BCM
BCM
Page 722 of 4331
BL
N
O P “ CHAIN OF ECM-IMMU ” displayed?
Yes >> GO TO 2
No >> GO TO BL-259, " Trouble Diagnosis " .
OK >> GO TO 3
NG >> Check the following. • 40A fusible link (letter g , located in the fuse and fus-
ible link box).
• 10A fuse [No.8, 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. OK >> GO TO 4
NG >> Check the following. • 10A fuse [No. 6, located in the fuse block (J/B)].
• Harness for open or short between fuse and BCM. OK >> GO TO 5
NG >> Repair or replace harness. BCM connector
Terminals
Voltage [V]
(Approx.)
(+) (–)
M20 57
Ground Battery voltage
70
Page 726 of 4331
BL
N
O P
OK or NG OK >> BCM is malfunctioning.
• Replace BCM. Refer to BCS-18, " Removal and Instal-
lation of BCM " .
• Perform initialization with CONSULT-III
• For initialization, refer to “CONSULT-III Operation
Manual.
NG >> Check the following. • Harness for open or short between combination meter (security) and BCM
• Indicator lamp condition
Diagnosis Procedure 5 INFOID:0000000004305148
Self-diagnostic results:
“LOCK MODE” displayed on CONSULT-III screen“ LOCK MODE ” displayed?
Yes >> GO TO 2
No >> GO TO BL-259, " Trouble Diagnosis " .
Yes >> System is OK (Now system
is escaped from “LOCK MODE”).
No >> GO TO 3 Yes >> System is OK.
No >> GO TO 4 Yes >> System is OK. (BCM is malfunctioning.)
No >> ECM is malfunctioning. • Replace ECM.
• Perform initialization with CONSULT-III
• For initialization, refer to “CONSULT-III Operation Manual NATS”
BCM connector
Terminal
Voltage [V]
(Approx.)
(+) (-)
M18 23 Ground Battery voltage