check engine NISSAN LATIO 2009 Service Manual PDF

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

Removal and Installation of BCM " .
2. Perform initialization with CONSULT-III.
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-249, " ECM Re-communicating Function "
“ CHAIN OF IMMU-KEY ” displayed?
Yes >> GO TO 2
No >> GO TO BL-259, " Trouble Diagnosis " .
How to Replace NATS Antenna Amp " .
OK or NG OK >> GO TO 3
NG >> Reinstall NATS antenna amp. correctly. 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 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.

“ ID DISCORD IMM-ECM ” displayed?
Yes >> GO TO 2
No >> GO TO BL-259, " Trouble Diagnosis " .
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 4 INFOID:0000000004305147
“COMBINATION METER (SECURITY) DOES NOT LIGHT UP” OK >> GO TO 2
NG >> Replace fuse. OK >> Inspection End.
NG >> GO TO 3 OK >> GO TO 4
NG >> Check harness for open or short between fuse and com- bination meter (security).

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2. Loosen lock nut on input rod, then rotate input rod to set pedal to
the specified height, and tighten the 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 and ASCD switch until their threaded end contacts the brake
pedal stopper.
4. With the threaded end of stop lamp switch and ASCD switch contacting brake pedal stopper, rotate the switches clockwise by
45 ° to secure.
CAUTION:
Make sure that the clearance (C) is within specification.
5. Check that the stop lamps go out when the brake pedal is released.
CAUTION:
Make sure that stop lamps go off when brake pedal is
released.
6. Start the engine and check the brake pedal stroke.
Removal and Installation INFOID:0000000004305891
COMPONENTS
REMOVAL Lock nut : Refer to
BR-21, " Removal and Installation " .

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3. Remove lock plate, and remove brake hose.
INSTALLATION 1. Connect brake hose to brake tube, and temporaril y tighten flare nut by hand as much as possible.
2. Secure it to the bracket with the lock plate.
3. Tighten flare nut to the specified torque using a suitable tool. Refer to BR-11, " Hydraulic Circuit " .
4. Bleed the air from the brake hydraulic system. Refer to BR-9, " Bleeding Brake System " .
Inspection After Installation INFOID:0000000004305898
CAUTION:
• Always disassemble the parts and retighten their fitti ngs, if a brake fluid leak is detected. Replace
applicable part with a new one, if damaged part is detected.
• If leak is detected at the connections, retighten it or replace the damaged part.
1. Check brake hose, tube, and connections for fluid leak s, damage, twisting, deformation, contact with other
parts, and loose connections.
2. While depressing pedal under a force of 785 N (80 kg-f, 177 lb-f) with the engine running for approxi- mately 5 seconds, check for fluid leaks from each part of the brake hydraulic system. SFIA1120E

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VACUUM LINES
Component INFOID:0000000004305906
Removal and Installation INFOID:0000000004305907
REMOVAL 1. Disconnect the vacuum hose from the intake manifold.
2. Disconnect the vacuum hose from the brake booster.
3. Disconnect the vacuum hose from the clip and re move the vacuum hose and vacuum tube assembly.
INSTALLATION Installation is in the reverse order of removal.
CAUTION:
• Because the vacuum hose at the intake manifold contai ns a built-in check valve, it must be installed
in the correct orientation. Refer to the stamp or label to confirm correct installation orientation.
Brake booster will not operate normally if ho se is installed in the reverse orientation.
• Insert vacuum hose at least 24 mm (0.94 in) on to the vacuum tube and vacuum fittings on the brake booster and intake
manifold as shown.
• Never use lubricating oil during assembly.
Inspection INFOID:0000000004305908
VISUAL INSPECTION Check for improper installation, damage and deterioration. Replace parts as necessary.
CHECK VALVE INSPECTION 1. Hose clamp 2. Engine side indicator stamp (for
built-in check valve orientation)3. Vacuum hose
4. Clip 5. Clip position stamp 6. Vacuum tube
A. To intake manifold B. To brake booster SBR225B

" Check Valve " .
When connected to engine side (2) : Refer to BR-39, " Check Valve " .

SERVICE DATA AND SPECIFICATIONS (SDS)
BR-39
< SERVICE INFORMATION >
C
D E
G H
I
J
K L
M A
B BR
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Brake Pedal
INFOID:0000000004305920
Unit: mm (in)
Check Valve INFOID:0000000004305921
H Brake pedal free height (from dash panel top surface)
A/T, CVT model 172.4 - 182.4 (6.79 - 7.18)
M/T model 162.3 - 172.3 (6.39 - 6.78)
S Brake pedal full stroke
[under a force of 490 N (50 kg-f, 110 lb-f) with the engine running] A/T, CVT model 133 (5.24)
M/T model 133 (5.24)
C 1
Clearance between the threaded end of stop lamp switch and pedal stopper 0.74 - 1.96 (0.0291 - 0.0772)
C 2
Clearance between the threaded end of ASCD switch and pedal stopper 0.74 - 1.96 (0.0291 - 0.0772) AWFIA0433ZZ
When connected to booster side (1) Within 1.3 kPa (10 mmHg, 0.39 inHg) of vacuum for 15 seconds [at vacuum of – 66.7 kPa (– 500 mmHg, – 19.69 inHg]
When connected to engine side (2) No vacuum will be applied SFIA0210E

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Precaution for Brake Control
INFOID:0000000004307252
• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is normal.
• Just after starting the vehicle, the brake pedal may vibrate or motor operating noises may be heard from
engine compartment. This is normal due to the self check operation.
• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer
(what symptoms are present under what conditions) and check for simple causes before starting diagnosis.
Besides electrical system inspection, check brake booster operation, brake fluid level, and fluid leaks.
• If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts, stop-
ping distance or steering stability may deteriorate.
• If there is a radio, antenna or related wiring near t he control module, ABS function may have a malfunction
or error.
• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness pinches, open circuits or improper wiring.
Precaution for CAN System INFOID:0000000004307253
• Do not apply voltage of 7.0V or higher to terminal to be measured.
• Maximum open terminal voltage of tester in use must be less than 7.0V.
• Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.
• Area to be repaired must be soldered and wrapped with tape. Make sure that fraying of twisted wire is within 110 mm (4.33 in).
• Do not make a bypass connection to repaired area. (If the circuit is bypassed, characteristics of twisted wire will be lost.)

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SYSTEM DESCRIPTION
System Component INFOID:0000000004307256
ABS Function INFOID:0000000004307257
• The Anti-Lock Brake System detects wheel revolution while braking and improves handling stability during sudden braking by electrically preventing wheel lockup. Maneuverability is also improved for avoiding obsta-
cles during emergency braking.
• If the electrical system malfunctions, the Fail-Safe function is activated, the ABS becomes inoperative and
the ABS warning lamp turns on.
• The electrical system can be diagnosed using CONSULT-III.
• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
• Just after starting the vehicle, the brake pedal may vibrate or motor operating noises may be heard from the
engine compartment. This is normal due to the self check operation.
• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
EBD Function INFOID:0000000004307258
• Electronic Brake Distribution is a function that detec ts subtle slippages between the front and rear wheels
during braking, and it improves handling stability by elec tronically controlling the brake fluid pressure which
results in reduced rear wheel slippage.
• If the electrical system malfunctions, the Fail-Safe function is activated, the EBD and ABS become inopera-
tive, and the ABS warning lamp and brake warning lamp are turned on.
• The electrical system can be diagnosed using CONSULT-III.
• During EBD operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
• Just after starting the vehicle, the brake pedal may vibrate or motor operating noises may be heard from the
engine compartment. This is normal due to the self check operation.
Fail-Safe Function INFOID:0000000004307259
CAUTION:
If the Fail-Safe function is activated, perform the Self Diagnosis for ABS system.
ABS/EBD SYSTEM In case of an electrical malfunction with the ABS, the ABS warning lamp wi ll turn on. In case of an electrical
malfunction with the EBD system, the brake warni ng lamp and the ABS warning lamp will turn on.
The system will revert to one of the follo wing conditions of the Fail-Safe function.
1. For ABS malfunction, only the EBD is operative and t he condition of the vehicle is the same condition of
vehicles without ABS system.