VACUUM LINESBR-23
< SERVICE INFORMATION >
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VACUUM LINES
ComponentINFOID:0000000005396994
Removal and InstallationINFOID:0000000005396995
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 contains 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.
InspectionINFOID:0000000005396996
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 stamp6. Vacuum tube
A. To intake manifold B. To brake booster
WFIA0541E
SBR225B
Revision: January 20102010 Versa
BR-24
< SERVICE INFORMATION >
VACUUM LINES
Use a hand vacuum pump to check the built-in valve.
Replace the vacuum hose with the built-in check valve as an assem-
bly if the vacuum hose is out of specifications.When connected to booster side (1) : Refer to BR-41,
"Check Valve".
When connected to engine side (2) : Refer to BR-41,
"Check Valve".
SFIA0210E
Revision: January 20102010 Versa
SERVICE DATA AND SPECIFICATIONS (SDS)BR-41
< SERVICE INFORMATION >
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Brake PedalINFOID:0000000005397008
Unit: mm (in)
Check ValveINFOID:0000000005397009
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
1Clearance between the threaded end of stop lamp switch and pedal stopper 0.74 - 1.96 (0.0291 - 0.0772)
C
2Clearance 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
Revision: January 20102010 Versa
BRC-4
< SERVICE INFORMATION >[ABS]
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Precaution for Brake SystemINFOID:0000000005397021
CAUTION:
• Refer to MA-14
for recommended brake fluid.
• Never reuse drained brake fluid.
• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• To clean or wash all parts of master cylin der and disc brake caliper, use clean brake fluid.
• Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic sys-
tem.
• Use flare nut wrench when removing and installing brake
tube.
• If a brake fluid leak is found, the part must be disassembled without fail. Then it has to be replaced with a new one if a
defect exists.
• Turn the ignition switch OFF an d remove the connector of the
ABS actuator and electric unit (c ontrol unit) or the battery ter-
minal before performing the work.
• Always torque brake lines when installing.
• Burnish the brake contact surf aces after refinishing or replac-
ing rotors, after replacing pads, or if a soft pedal occurs at
very low mileage. Refer to BR-34, "
Brake Burnishing Proce-
dure".
WARNING:
• Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precaution for Brake ControlINFOID:0000000005397022
• 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 la mp, 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 v ehicle 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 SystemINFOID:0000000005397023
• Do not apply voltage of 7.0V or higher to terminal to be measured.
• Maximum open terminal voltage of test er in use must be less than 7.0V.
• Before checking harnesses, turn ignition sw itch OFF and disconnect battery negative cable.
SBR686C
Revision: January 20102010 Versa
SYSTEM DESCRIPTIONBRC-7
< SERVICE INFORMATION > [ABS]
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SYSTEM DESCRIPTION
System ComponentINFOID:0000000005397026
ABS FunctionINFOID:0000000005397027
• 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, t he 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 FunctionINFOID:0000000005397028
• Electronic Brake Distribution is a function that detects 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 FunctionINFOID:0000000005397029
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.
WFIA0118E
Revision: January 20102010 Versa
TROUBLE DIAGNOSISBRC-19
< SERVICE INFORMATION > [ABS]
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• If ABS actuator and electric unit (control unit) connec tion is loose, tighten the piping to the specified
torque and recheck for leaks.
• If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) threads,
replace the damaged part and recheck for leaks.
• When there is fluid leaking or seeping from a fluid connection, use a clean cloth to wipe off the fluid and recheck for leaks. If fluid is still seeping out, replace the damaged part. If the fluid is leaking at the ABS
actuator and electric unit (control unit), replace the ABS actuator and electric unit (control unit) assem-
bly.
CAUTION:
The ABS actuator and electric unit (control unit) cannot be disassembl\
ed and must be replaced
as an assembly.
3. Check the brake pads for excessive wear.
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cabl e and ground connection are not loose. In addition, make
sure the battery is sufficiently charged.
ABS WARNING LAMP INSPECTION
1. Make sure ABS warning lamp turns on for approximately 2 seconds when the ignition switch is turned ON. If it does not, check CAN communications. If ther e are no errors with the CAN communication system,
replace the combination meter. Refer to IP-12, "
Removal and Installation".
2. Make sure the lamp turns off approximately 2 seconds after the ignition switch is turned ON. If the lamp does not turn off, conduct self-diagnosis of ABS actuator and electric unit (control unit). If no malfunctions
are detected in self-diagnosis, replace combination meter. Refer to IP-12, "
Removal and Installation".
3. After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-20, "
CONSULT-III
Function (ABS)".
Warning Lamp and Indicator TimingINFOID:0000000005397037
Note 1: Brake warning lamp will turn on when the parking brake is applied or when the brake fluid level is low.
x: ON
–: OFF
Control Unit Input/Out put Signal StandardINFOID:0000000005397038
REFERENCE VALUE FROM CONSULT-III
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short circuited.
Condition ABS
warning lamp BRAKE
warning lamp [Note 1] Remarks
When the ignition switch is OFF –– –
After the ignition switch is turned ON for approx. 1
second ××
–
After the ignition switch is turned ON for approx. 2
seconds ––Lamp goes off approx. 2 seconds after the
engine is started.
ABS malfunction ×––
EBD malfunction ××–
Revision: January 20102010 Versa
BRC-20
< SERVICE INFORMATION >[ABS]
TROUBLE DIAGNOSIS
Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 2 seconds after ignition switch is turned ON (when system is in normal operation).
CONSULT-III Function (ABS)INFOID:0000000005397039
CONSULT-III can display each diagnostic item us
ing the diagnostic test modes shown following.
Monitor itemDisplay content Data monitor
Note: Error inspection
checklist
Condition Reference value in
normal operation
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR Wheel speedVehicle stopped
0 [km/h (MPH)]
BRC-26, "
Wheel Sensor
System"Vehicle running (Note 1) Almost in accor-
dance with speed-
ometer display
(within
±10%)
BATTERY VOLT Battery voltage sup-
plied to ABS actuator
and electric unit (con-
trol unit)Ignition switch ON
10 to 16VBRC-29, "
ABS Control
Unit Power and Ground
Systems Inspection"
STOP LAMP SW
Stop lamp switch oper-
ationBrake pedal depressed ON
—
Brake pedal not depressed OFF
ABS WARN LAMP ABS warning lamp ON
condition (Note 2)ABS warning lamp ON ON
BRC-18, "
Basic Inspec-
tion"ABS warning lamp OFF OFF
MOTOR RELAY Operation status of mo-
tor and motor relayIgnition switch ON or running
(ABS not activated)
OFF
BRC-28, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"Ignition switch ON or engine
running (ABS activated) ON
ACTUATOR RLY Actuator relay opera-
tion statusVehicle stopped (Ignition
switch ON)
OFF
BRC-28, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"Vehicle stopped (Engine run-
ning) ON
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL Solenoid valve opera-
tionActuator (solenoid) is active
(“ACTIVE TEST” with CON-
SULT-III) or actuator relay is in-
active (in fail-safe mode).
ON
BRC-27, "
Solenoid Valve
System Inspection"When actuator (solenoid) is not
active and actuator relay is ac-
tive (ignition switch ON). OFF
ABS SIGNAL
EBD SIGNAL Signal statusABS active
EBD active
ON
ABS system
EBD system
ABS not active
EBD not active OFF
ABS FAIL SIG
EBD FAIL SIG Fail signal statusABS fail
EBD fail
ON
ABS system
EBD system
ABS normal
EBD normal OFF
Diagnostic mode
Description
SELF DIAGNOSTIC RESULT Displays ABS ac tuator and electric unit (control unit) self-diagnosis results.
DATA MONITOR Displays ABS actuator and electric unit (control unit) input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
Revision: January 20102010 Versa
TROUBLE DIAGNOSISBRC-21
< SERVICE INFORMATION > [ABS]
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SELF-DIAGNOSIS
Description
If an error is detected in the system, the ABS warning lamp will turn on. In this case, perform self-diagnosis as
follows:
Operation Procedure
1. Turn ignition switch OFF.
2. Connect CONSULT-III to the data link connector.
3. Turn ignition switch ON.
4. Start engine and drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute.
5. After stopping the vehicle, with the engine running, touch “ABS”, “SELF-DIAG RESULTS” in order on the CONSULT-III screen.
6. The self-diagnostic results are displayed. (If necessary, the self-diagnostic results can be printed out by touching “PRINT”.)
• When “NO DTC IS DETECTED” is displayed, check the ABS warning lamp.
7. Conduct the appropriate inspection from the display item list, and repair or replace the malfunctioning
component.
8. Start engine and drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute.
CAUTION:
• When a wheel sensor “short-circuit” is detected, if the vehicle is not driven at 30 km/h (19 MPH)
for at least 1 minute, the ABS warn ing lamp will not turn off even if the malfunction is repaired.
9. Turn ignition switch OFF to prepare for erasing the memory.
10. Start the engine and touch “ABS”, “SELF-DIAG RESULTS”, “ERASE” in order on the CONSULT-III screen to erase the error memory.
If “ABS” is not indicated, go to GI-36, "
CONSULT-III Data Link Connector (DLC) Circuit".
CAUTION:
If the error memory is not erased, re -conduct the operation from step 5.
11. For the final inspection, drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute and
confirm that the ABS warning lamp is off.
Display Item List
FUNCTION TEST Conducted by CONSULT-III in stead of a technician to determine whether each system is "OK" or "NG".
ECU IDENTIFICATION ABS actuator and electric un it (control unit) part number can be read.
Diagnostic mode
Description
Revision: January 20102010 Versa