2007 NISSAN LATIO display

BL-180
BACK DOOR LOCK
Revision: June 20062007 Versa
CONSULT-II APPLICATION ITEMS
Data Monitor
* : With Intelligent Key system
** : Without Intelligent Key system
Active Test
Work FlowEIS009DP
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to BL-176, "
System Description" .
3. Repair or replace any malfunctioning parts. Refer to BL-180, "
Trouble Diagnosis Chart by Symptom" .
4. Does back door opener operate normally? If Yes, GO TO 5. If No, GO TO 3.
5. INSPECTION END
Trouble Diagnosis Chart by SymptomEIS009DQ
BCM Power Supply and Ground CircuitEIS009DR
Refer to BCS-16, "BCM Power Supply and Ground Circuit Check" .
Monitor item Content
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
KEYLESS TRUNK** This is displayed even when it is not equipped.
I-KEY TRUNK* Momentarily indicates [ON/OFF] condition of back door open signal from back door opener switch.
TRNK OPNR SW** Indicates [ON/OFF] condition of back door open signal from back door opener switch.
VEHICLE SPEED This is displayed even when it is not equipped.
Test item Content
TRUNK/BACK DOORThis test is able to check back door lock assembly (actuator) unlock operation.
Actuator opens back door lock assembly when “OPEN” on CONSULT-II screen is touched.
Symptom Diagnoses/service procedureReference
page
Back door opener does not operate.
(Without Intelligent Key or power windows)1. Check BCM power supply and ground circuit.BCS-16
2. Check back door opener switch circuit.BL-181
3. Check back door lock assembly (actuator) circuit.BL-189
4. Replace BCM.BCS-25
Back door opener does not operate.
(Without Intelligent Key, with power windows)1. Check BCM power supply and ground circuit.BCS-162. Check back door opener switch circuit.BL-184
3. Check back door lock assembly (actuator) circuit.BL-189
4. Replace BCM.BCS-25
Back door opener does not operate.
(With Intelligent Key)1. Check BCM power supply and ground circuit.BCS-16
2.Check Intelligent Key power supply and ground cir-
cuit.BL-123
3. Check back door opener switch circuit.BL-187
4. Check back door lock assembly (actuator) circuit.BL-189
5. Replace BCM.BCS-25

BL-202
VEHICLE SECURITY (THEFT WARNING) SYSTEM
Revision: June 20062007 Versa
Terminals and Reference Values for BCMEIS00A3H
Refer to BCS-12, "Terminals and Reference Values for BCM" .
Terminals and Reference Values for Intelligent Key UnitEIS009E2
Refer to BL-106, "Terminals and Reference Values for Intelligent Key Unit" .
CONSULT-II Function (BCM)EIS009B2
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II START PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
CONSULT-II APPLICATION ITEM
Work Support
Data Monitor
BCM
diagnostic test itemDiagnostic mode Description
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the
BCM for setting the status suitable for required operation, input/output sig-
nals are received from the BCM and received date is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TESTOperation of electrical loads can be checked by sending drive signal to
them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTRThe result of transmit/receive diagnosis of CAN communication can be
read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
Test Item Description
SECURITY ALARM SET This mode can confirm and change security alarm ON-OFF setting.
THEFT ALM TRGThe switch which triggered vehicle security alarm is recorded. This mode is able to confirm and
erase the record of vehicle security alarm. The trigger data can be erased by touching “CLEAR”
on CONSULT-II screen.
Monitored Item Description
IGN ON SW Indicates [ON/OFF] condition of ignition switch.
ACC ON SW Indicates [ON/OFF] condition of ignition switch in ACC position.
I-KEY LOCK Indicates [ON/OFF] condition of lock signal from keyfob.
I-KEY UNLOCK Indicates [ON/OFF] condition of unlock signal from keyfob.
I-KEY TRUNK Indicates [ON/OFF] condition of trunk open signal from keyfob.
TRNK OPNR SW Indicates [ON/OFF] condition of trunk opener switch.
TRUNK CYL SW Indicates [ON/OFF] condition of trunk key cylinder switch.
TRNK OPN MNTR Indicates [ON/OFF] condition of trunk lid status.
DOOR SW-DR Indicates [ON/OFF] condition of front door switch LH.
DOOR SW-AS Indicates [ON/OFF] condition of front door switch RH.
DOOR SW-RR Indicates [ON/OFF] condition of rear door switch RH.
DOOR SW-RL Indicates [ON/OFF] condition of rear door switch LH.
BACK DOOR SW Indicates [ON/OFF] condition of back door switch.
KEY CYL LK SW Indicates [ON/OFF] condition of lock signal from key cylinder switch.
KEY CYL UN SW Indicates [ON/OFF] condition of unlock signal from key cylinder switch.

NATS (NISSAN ANTI-THEFT SYSTEM)
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Revision: June 20062007 Versa
System DescriptionEIS0093O
DESCRIPTION
NOTE:
If customer reports a “No start” condition, request ALL KEYS to be brought to a Nissan dealer in case
of a NATS malfunction.
NATS (Nissan Anti-Theft System) has the following functions:

NATS shows a higher anti-theft performance at preventing engine to be started by an unregistered key.
(registered key: mechanical key and Intelligent Key).

Only a key with key ID registered in BCM and ECM can start engine, it has a higher protection against
auto theft that duplicates keys.

If a malfunction has been detected, security indicator will illuminate when ignition switch is in ON position.

If the owner requires, mechanical key can be registered for up to 5 keys.

During trouble diagnosis or when the following parts have been replaced, and if mechanical key is added,
registration* is required.
*: All mechanical keys of the vehicle should be registered.
–ECM
–BCM
–Mechanical key

NATS trouble diagnoses, system initialization and additional registration of other NATS mechanical key
IDs must be carried out using CONSULT-II hardware and CONSULT-II NATS software. When NATS ini-
tialization has been completed, the ID of the inserted mechanical key can be displayed.
Regarding the procedures of NATS initialization and mechanical key ID registration, refer to CONSULT-II
operation manual NATS.
SECURITY INDICATOR

Forewarns that the vehicle is equipped with NATS.

Security indicator will not blink while the ignition knob is in ON or START state.
NOTE:
Because security indicator is highly efficient, the battery is barely affected.
Condition of Security Indicator

When operating the ignition switch with Intelligent Key, security indicator lamp will turn off at once if igni-
tion switch is pressed and blinks when ignition switch is released.

When operating the ignition switch with mechanical key security indicator will turn off at once if mechani-
cal key is inserted into key cylinder and blinks when mechanical key is removed.
(Once the mechanical key is inserted into key cylinder, BCM will only perform the key ID verification with
mechanical key)
System CompositionEIS0093P
The function of the NATS consists of the following:

Mechanical key

NATS antenna amp. located in the ignition key cylinder

BCM

ECM (Engine control module)

Security indicator

Intelligent Key unit (if equipped)

BL-220
NATS (NISSAN ANTI-THEFT SYSTEM)
Revision: June 20062007 Versa
WORK FLOW
1. STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate
ignition switch.
OK >> System is normal.
NG >> GO TO 2.
2. PERFORM SELF DIAGNOSIS
Perform SELF-DIAGNOSIS “NATS V5.0” using CONSULT-II.
NOTE:
NATS program card is necessary to display the “SELF-DIAGNOSIS”.
No malfunction is detected>>Recheck the starting engine section GO TO 1.
Malfunction related to NATS is detected>>GO TO 3.
Malfunctions related to “DON’T ERASE BEFORE CHECKING ENG DIAG” and NATS are detected>>GO
TO 7.
3. IDENTIFYING NATS MALFUNCTION
Self-diagnosis results referring to NATS, but no information about engine self-diagnosis result is displayed on
CONSULT-II. Refer to BL-222, "
SYMPTOM MATRIX CHART 1" .
>> GO TO 4.
4. NATS TROUBLE DIAGNOSIS
Repair NATS (if necessary, perform “C/U INITIALZATIN” with CONSULT-II.)
>> GO TO 5.
5. ERASE SELF-DIAGNOSIS
Erase the record of “SELF-DIAGNOSIS” by using CONSULT-II.
>> GO TO 6.
6. STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate
ignition switch.
NG >> GO TO 2.
OK >> End of inspection.
7. IDENTIFYING NATS AND ENGINE CONTROL MALFUNCTION
NATS malfunction and “DON’T ERASE BEFORE CHECKING ENG DIAG” are displayed on the CONSULT-II
screen.
NOTE:
This indication means that malfunction have been detected in NATS and engine control system.
>> GO TO 8.

NATS (NISSAN ANTI-THEFT SYSTEM)
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Revision: June 20062007 Versa
8. NATS TROUBLE DIAGNOSIS
Repair NATS according to self-diagnosis results refer to NATS (if necessary, perform “C/U INITIALZATIN” with
CONSULT-II.)
NOTE:
Do not erase “SELF-DIAGNOSIS” by using CONSULT-II.
>> GO TO 9.
9. IDENTIFYING ENGINE CONTROL MALFUNCTION
Check engine “SELF-DIAGNOSIS” records with a generalized program card instead of the NATS program
card.
>> GO TO 10.
10. ENGINE CONTROL SYSTEM TROUBLE DIAGNOSIS
Repair engine control system if engine related malfunction is detected.
With engine diagnostic codes present, refer to EC-8, "
INDEX FOR DTC" .
Without engine diagnostic codes present, refer to EC-83, "
TROUBLE DIAGNOSIS" .
NOTE:
If only “NATS MALFUNCTION” is displayed, erase the self-diagnosis results.
>> GO TO 11.
11 . STARTING ENGINE
Check if the engine could be started by inserting the mechanical key into the ignition key cylinder and operate
ignition switch.
OK >> GO TO 12.
NG >> GO TO 2.
12. ERASE SELF-DIAGNOSIS
Erase both NATS and ENGINE "SELF-DIAGNOSIS" records by using CONSULT-II NATS program card and
generalized program card.
>> GO TO 13
13. COMFIRMATION
Perform running test with CONSULT-II in engine “SELF-DIAGNOSIS” mode.
“NO DTC” is displayed>> End of inspection.
Malfunction information is displayed>> GO TO 2.

BL-222
NATS (NISSAN ANTI-THEFT SYSTEM)
Revision: June 20062007 Versa
Trouble DiagnosesEIS0093X
SYMPTOM MATRIX CHART 1
Self-diagnosis related item

*: When NATS detects trouble, the security indicator lights up while ignition key is in the “ON” position.
SYMPTOM MATRIX CHART 2
Non self-diagnosis related item
*: CONSULT-II self-diagnostic results display screen “no malfunction is detected”. SYMPTOMDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or mode)

Security indicator
lighting up*

Engine cannot be
startedCHAIN OF ECM-IMMU
[P1612]PROCEDURE 1
(BL-223
)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
CHAIN OF IMMU-KEY
[P1614]PROCEDURE 2
(BL-225
)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-227
)System initialization has not yet been completed.
ECM
LOCK MODE
[P1610]PROCEDURE 5
(BL-229
)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 ignition key is used.

BCM or ECM’s malfunctioning.
Security indicator
lighting up*DON'T ERASE
BEFORE CHECKING
ENG DIAGWORK FLOW
(BL-220
)Engine trouble data and NATS trouble data have been
detected in ECM
SYMPTOMDIAGNOSTIC PROCEDURE
(Reference page)SYSTEM
(Malfunctioning part or mode)
Security indicator does not light up*.PROCEDURE 4
(BL-228
)Security indictor.
Open circuit between Fuse and BCM
BCM

NATS (NISSAN ANTI-THEFT SYSTEM)
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Revision: June 20062007 Versa
Diagnostic Procedure 1EIS0093Y
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-18, "
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?
Yes >> GO TO 2.
No >> GO TO BL-222, "
SYMPTOM MATRIX CHART 1" .
2. CHECK POWER SUPPLY CIRCUIT FOR BCM
1. Turn ignition switch OFF.
2. Check voltage between BCM and ground with CONSULT-II or tester.
OK or NG
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.
3. CHECK IGNITION SWITCH ON SIGNAL
1. Turn ignition switch ON.
2. Check voltage between BCM connector and ground with CONSULT-II or tester.
OK or NG
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.
PIIA1260E
BCM connectorTe r m i n a l s
Voltage [V]
(Approx.)
(+) (–)
M2057
Ground Battery voltage
70
PIIB6582E
BCM connectorTe r m i n a l
Voltage [V]
(Approx.)
(+) (–)
M18 38 Ground Battery voltage
PIIB6587E

NATS (NISSAN ANTI-THEFT SYSTEM)
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Revision: June 20062007 Versa
Diagnostic Procedure 2EIS0093Z
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 shown in figure?
Yes >> GO TO 2.
No >> GO TO BL-222, "
SYMPTOM MATRIX CHART 1" .
2. CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to BL-230, "
How to Replace NATS Antenna Amp." .
OK or NG
OK >> GO TO 3.
NG >> Reinstall NATS antenna amp. correctly.
3. CHECK 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

Perform initialization with CONSULT-II
For initialization, refer to “CONSULT-II Operation Manual NATS”
No >> GO TO 4.
4. CHECK POWER SUPPLY FOR NATS ANTENNA AMP.
1. Turn ignition switch “OFF”.
2. Check voltage between NATS antenna amp. connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Check the following.

20A fuse [No. 53, located in IPDM E/R]

Harness for open or short between fuse and NATS
antenna amp.
PIIA1263E
NATS antenna amp.
connectorTerminal
Voltage [V]
(Approx.)
(+) (–)
M21 1 Ground Battery voltage
PIIB6589E