engine NISSAN LATIO 2008 Service Repair Manual

BL-216
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
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-III.
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-III. Refer to BL-217, "
Trouble Diagnosis" .
>> GO TO 4.
4.NATS TROUBLE DIAGNOSIS
Repair NATS (if necessary, perform “C/U INITIALIZATION” with CONSULT-III.)
>> GO TO 5.
5.ERASE SELF-DIAGNOSIS
Erase the record of “SELF-DIAGNOSIS” by using CONSULT-III.
>> 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-III
screen.
NOTE:
This indication means that malfunction have been detected in NATS and engine control system.
>> GO TO 8.
8.NATS TROUBLE DIAGNOSIS
Repair NATS according to self-diagnosis results refer to NATS (if necessary, perform “C/U INITIALZATIN” with
CONSULT-III.)
NOTE:
Do not erase “SELF-DIAGNOSIS” by using CONSULT-III.
>> GO TO 9.

NATS (NISSAN ANTI-THEFT SYSTEM)
BL-217
< SERVICE INFORMATION >
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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-9
.
Without engine diagnostic codes present, refer to EC-81
.
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-III NATS program card and
generalized program card.
>> GO TO 13
13.COMFIRMATION
Perform running test with CONSULT-III in engine “SELF-DIAGNOSIS” mode.
“NO DTC” is displayed>> End of inspection.
Malfunction information is displayed>>GO TO 2.
Trouble DiagnosisINFOID:0000000001704111
SYMPTOM MATRIX CHART 1

BL-218
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
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-III self-diagnostic results display screen “no malfunction is detected”.
Diagnosis Procedure 1INFOID:0000000001704112
Self-diagnostic results:
“CHAIN OF ECM-IMMU” displayed on CONSULT-III screen
First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-III, then perform the trouble diag-
nosis of malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to BCS-17, "
CAN Com-
munication Inspection Using CONSULT-III (Self-Diagnosis)" .
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF ECM-IMMU” displayed on CONSULT-III screen.
NOTE:
SYMPTOMDisplayed “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
startedCHAIN OF ECM-IMMU
[P1612]PROCEDURE 1
(BL-218
)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-220
)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-221
)System initialization has not yet been completed.
ECM
LOCK MODE
[P1610]PROCEDURE 5
(BL-223
)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 DIAGWORK FLOW
(BL-215
)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-222
)Security indictor.
Open circuit between Fuse and BCM
BCM

BL-220
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
For initialization, refer to “CONSULT-III Operation Manual NATS”.
Does the engine start?
Yes >> BCM is malfunctioning.
• Replace BCM. Refer to BCS-18, "
Removal and Installation of BCM" .
• Perform initialization with CONSULT-III
• For initialization, refer to “CONSULT-III Operation Manual NATS”
No >> ECM is malfunctioning.
• Replace ECM.
• Perform initialization or re-communicating function
• For initialization, refer to “CONSULT-III Operation Manual NATS”
• For re-communicating function, refer to BL-211, "
ECM Re-communicating Function"
Diagnosis Procedure 2INFOID:0000000001704113
Self-diagnostic results:
“CHAIN OF IMMU-KEY” displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “CHAIN OF IMMU-KEY” displayed on CONSULT-III screen.
Is
“CHAIN OF IMMU-KEY” displayed?
Ye s > > G O T O 2 .
No >> GO TO BL-217, "
Trouble Diagnosis" .
2.CHECK NATS ANTENNA AMP. INSTALLATION
Check NATS antenna amp. installation. Refer to BL-224, "
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-III
For initialization, refer to “CONSULT-III 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.
5.CHECK NATS ANTENNA AMP. SIGNAL LINE- 1
Check voltage between NATS antenna amp. connector and ground with analog tester.
NATS antenna amp.
connectorTe r m i n a l
Voltage [V]
(Approx.)
(+) (–)
M21 1 Ground Battery voltage
PIIB6589E

BL-222
< SERVICE INFORMATION >
NATS (NISSAN ANTI-THEFT SYSTEM)
“ID DISCORD IMM-ECM”:
Registered ID of BCM is in discord with that of ECM.
Is
“ID DISCORD IMM-ECM” displayed?
Ye s > > G O T O 2 .
No >> GO TO BL-217, "
Trouble Diagnosis" .
2.PERFORM INITIALIZATION WITH CONSULT-III
Perform initialization with CONSULT-III. Re-register all NATS ignition key IDs.
For initialization, refer to “CONSULT-III Operation Manual NATS”.
NOTE:
If the initialization is not completed or malfunctions, CONSULT-III shows message on the screen.
Can the system be initialized?
Yes >> • Start engine. (END)
• (System initialization had not been completed.)
No >> ECM is malfunctioning.
• Replace ECM.
• Perform initialization with CONSULT-III
For initialization, refer to “CONSULT-III Operation Manual NATS”
Diagnosis Procedure 4INFOID:0000000001704115
“COMBINATION METER (SECURITY) DOES NOT LIGHT UP”
1.CHECK FUSE
Check 10A fuse [No.13, located in the fuse block (J/B)]
OK or NG
OK >> GO TO 2.
NG >> Replace fuse.
2.CHECK COMBINATION METER (SECURITY)
1. Install 10A fuse.
2. Start engine and turn ignition switch OFF.
3. Check if the combination meter (security) lights up.
OK or NG
OK >> INSPECTION END.
NG >> GO TO 3.
3.CHECK COMBINATION METER (SECURITY) POWER SUPPLY CIRCUIT
1. Disconnect combination meter (security) connector.
2. Check voltage between combination meter (security) connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Check harness for open or short between fuse and com-
bination meter (security).
4.CHECK BCM FUNCTION
1. Connect combination meter (security) connector.
2. Disconnect BCM connector.
3. Check voltage between BCM connector and ground. Combination meter (security) should light up.
Combination meter
(security) connec-
torTe r m i n a l
Voltage [V]
(Approx.)
(+) (-)
M24 27 Ground Battery voltage
PIIB6593E

NATS (NISSAN ANTI-THEFT SYSTEM)
BL-223
< SERVICE INFORMATION >
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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 NATS”
NG >> Check the following.
• Harness for open or short between combination meter (security) and BCM
• Indicator lamp condition
Diagnosis Procedure 5INFOID:0000000001704116
Self-diagnostic results:
“LOCK MODE” displayed on CONSULT-III screen
1.CONFIRM SELF-DIAGNOSTIC RESULTS
Confirm SELF-DIAGNOSTIC RESULTS “LOCK MODE” is displayed on CONSULT-III screen.
Is
“LOCK MODE” displayed?
Yes >> GO TO 2.
No >> GO TO BL-217, "
Trouble Diagnosis" .
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”).
No >> GO TO 3.
3.PERFORM INITIALIZATION WITH CONSULT-III
Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS”.
NOTE:
If the initialization is not completed or malfunctions, CONSULT-III shows the message on the screen.
Can the system be initialized?
Yes >> System is OK.
No >> GO TO 4.
4.PERFORM INITIALIZATION WITH CONSULT-III AGAIN
1. Replace BCM.
2. Perform initialization with CONSULT-III.
For initialization, refer to “CONSULT-III Operation Manual NATS”.
NOTE:
If the initialization is not completed or malfunctions, CONSULT-III shows the message on the screen.
Can the system be initialized?
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 connectorTerminal
Voltage [V]
(Approx.)
(+) (-)
M18 23 Ground Battery voltage
PIIB6594E

BL-228
< SERVICE INFORMATION >
BODY REPAIR
4. Front pillar inner reinforcement (RH&LH)
5. Lower dash reinforcement
6. 4th crossmember (RH&LH)
7. Front side member rear extension (RH&LH)
8. 3rd crossmember (RH&LH)
9. Front seat outer rear bracket (RH&LH)
10. Front seat inner rear bracket (RH&LH)
11. 2nd crossmember (RH&LH)
12. Front seat outer front bracket (RH&LH)
13. Front seat inner front bracket (RH&LH)
14. Fender bracket (RH&LH)
15. Strut housing assembly RH
16. Cowl top side upper (RH&LH)
17. Front strut housing (RH&LH)
18. Upper torque rod reinforcement
19. Closing plate assembly RH
20. Engine mount reinforcement
21. Strut tower front reinforcement RH
22. Front hoodledge lower RH
23. Frame bracket outer (RH&LH)
24. Front bumper support bracket (RH&LH)
25. Closing plate (RH&LH)
26. Front suspension rear bracket (RH&LH)
27. Front side member outrigger (RH&LH)
28. Front side member assembly (RH&LH)
29. Front side member (RH&LH)
30. Frame bracket (RH&LH)
31. Closing plate assembly LH
32. Hoodledge connector (RH&LH)
33. Radiator core side support (RH&LH)
34. Radiator core support upper (RH&LH)
35. Hoodledge upper (RH&LH)
36. Hoodledge reinforcement assembly (RH&LH)
37. Dash side (RH&LH)
38. Dash side assembly (RH& LH)
39. Front floor reinforcement (RH&LH)
40. Front floor front (RH&LH)
41. Front floor center
42. Rear seat crossmember
43. Rear center crossmember
44. Rear seat upper crossmember
45. Rear side member (RH&LH)
46. Sill inner extension (RH&LH)
47. Rear side member extension (RH&LH)
48. Rear side member assembly (RH & LH)
49. Rear floor front
50. Rear floor front assembly
51. Rear floor side (RH&LH)
52. Rear floor rear

BODY REPAIR
BL-249
< SERVICE INFORMATION >
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ENGINE COMPARTMENT
PIIA0104E

BRAKE PEDAL
BR-5
< SERVICE INFORMATION >
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BRAKE PEDAL
Inspection and AdjustmentINFOID:0000000001703779
PLAY AND CLEARANCE BETWEEN BRAKE PEDAL AND FLOOR PANEL WITH PEDAL DE-
PRESSED
• Check brake pedal play.
• Check brake pedal free height from dash lower panel (1).
• Make an adjustment to the following dimension if value is outside
the standard.
ADJUSTMENT
WFIA0511E
H1Brake pedal free height (from dash panel top
surface)A/T, CVT
models172.4 - 182.4 mm (6.79 - 7.18 in)
M/T model 162.3 - 172.3 mm (6.39 - 6.78 in)
H
2
Brake pedal depressed height (under a force
of 490 N (50 kg-f, 110 lb-f) with the engine run-
ning)A/T, CVT
models98 mm (3.86 in) or more
M/T model 90 mm (3.54 in) or more
CClearance between the threaded end of stop lamp switch
(2) and brake pedal lever (3).0.74 - 1.96 mm (0.0291 - 0.0772 in)
A Pedal play 3 - 11 mm (0.12 - 0.43 in)

BR-6
< SERVICE INFORMATION >
BRAKE PEDAL
1. Loosen stop lamp switch by rotating it counterclockwise by 45°.
2. Loosen lock nut on input rod, then rotate input rod to set pedal to
the specified height, and tighten lock nut.
CAUTION:
Make sure that the threaded end of input rod stays inside
clevis.
3. With the pedal pulled and held by hand, press stop lamp switch
until its threaded end contacts brake pedal lever.
4. With the threaded end of stop lamp switch contacting brake
pedal lever, rotate the switch clockwise by 45° to secure.
CAUTION:
Make sure that the clearance (C) is within the standard.
Refer to "Inspection and Adjustment" .
5. Check the pedal play.
CAUTION:
Make sure that stop lamps go off when brake pedal is
released.
6. Start engine to check brake pedal depressed height. Refer to
"Inspection and Adjustment" .
Removal and InstallationINFOID:0000000001703780
COMPONENTS
REMOVAL
Lock nut : Refer to BR-18, "Removal and Installation" .
SFIA3064E
1. Snap pin 2. Stop lamp switch 3. Clip
4. Brake pedal assembly 5. Clevis 6. Brake pedal pad
SFIA3065E